<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
  <url><loc>https://sysdesignprep.com/</loc><changefreq>weekly</changefreq><priority>1.0</priority></url>
  <url><loc>https://sysdesignprep.com/plan</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/pricing</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/guides</loc><changefreq>weekly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/companies</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/terms</loc><changefreq>yearly</changefreq><priority>0.2</priority></url>
  <url><loc>https://sysdesignprep.com/privacy</loc><changefreq>yearly</changefreq><priority>0.2</priority></url>
  <url><loc>https://sysdesignprep.com/questions</loc><changefreq>weekly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/about</loc><changefreq>monthly</changefreq><priority>0.4</priority></url>
  <url><loc>https://sysdesignprep.com/mock</loc><changefreq>weekly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/guides/interview-framework</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/functional-vs-non-functional-requirements</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/common-interview-mistakes</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/practice-with-chatgpt</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/interview-levels</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/meta-product-architecture-vs-system-design</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/hld-vs-lld</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/system-design-patterns-cheat-sheet</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/conways-law-and-team-boundaries</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/books-and-papers</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/back-of-envelope-estimation</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/estimation-worked-examples</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/latency-numbers</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/queueing-theory-and-capacity-planning</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/scalability-basics</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/stateful-vs-stateless-services</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/what-happens-when-you-type-a-url</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/networking-fundamentals</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/global-traffic-management</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/tail-latency</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/read-heavy-vs-write-heavy</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/compression</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/load-balancing</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/autoscaling</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/kubernetes-basics</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/serverless</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/caching</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/cache-invalidation</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/redis-data-structures</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/skip-lists-and-sorted-sets</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/redis-vs-memcached</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/cdn-and-edge</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/http-caching</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/edge-computing</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/object-storage-and-files</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/distributed-file-systems</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/small-file-storage-haystack</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/delta-sync</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/media-uploads-and-processing</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/video-streaming</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/live-streaming</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/video-calls-and-webrtc</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/software-update-distribution</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/databases-sql-vs-nosql</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/document-databases</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/database-indexing</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/storage-engines</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/transactions-and-isolation</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/acid-vs-base</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/optimistic-vs-pessimistic-locking</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/scaling-postgres</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/online-schema-migrations</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/database-normalization</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/data-modelling-and-denormalisation</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/wide-column-data-modelling</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/graph-data</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/large-scale-graph-processing</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/comments-and-threads</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/sharding-and-partitioning</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/consistent-hashing</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/hot-keys-and-skew</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/geospatial-and-proximity</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/geohash-vs-quadtree-vs-h3</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/routing-and-shortest-paths</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/geocoding-and-place-search</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/location-tracking-at-scale</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/dispatch-and-marketplace-matching</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/surge-and-dynamic-pricing</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/replication-and-consistency</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/consistency-models</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/quorums-and-leaderless-replication</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/merkle-trees</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/cap-theorem</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/search-and-indexing</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/how-elasticsearch-works</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/search-ranking-and-relevance</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/web-search-engine-architecture</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/tries-and-autocomplete</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/probabilistic-data-structures</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/bloom-filters</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/vector-search-and-rag</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/ann-indexes</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/consensus-and-coordination</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/how-raft-works</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/gossip-and-failure-detection</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/spanner-and-distributed-sql</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/distributed-locks-and-leases</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/multi-region</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/active-active-vs-active-passive</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/cell-based-architecture</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/message-queues-and-streams</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/kafka-internals</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/kafka-vs-rabbitmq-vs-sqs</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/sync-vs-async-communication</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/event-driven-architecture</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/delivery-semantics</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/event-sourcing-and-cqrs</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/change-data-capture</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/background-jobs</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/delayed-and-scheduled-jobs</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/workflow-orchestration</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/batch-and-stream-processing</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/lambda-vs-kappa-architecture</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/mapreduce-and-spark</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/windowing-and-watermarks</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/web-crawling</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/analytics-and-olap</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/dimensional-modelling</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/data-lakes-and-lakehouses</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/data-quality-and-contracts</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/recommendation-systems</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/feature-stores-and-ml-serving</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/bandits-and-exploration</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/voting-and-ranking-algorithms</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/ad-serving-and-auctions</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/time-series-data</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/counting-at-scale</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/api-design</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/rest-vs-grpc-vs-graphql</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/api-gateways</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/schema-evolution-and-serialization</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/pagination</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/bulk-imports-and-exports</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/webhooks</loc><lastmod>2026-10-27</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/microservices</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/strangler-fig-migration</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/service-discovery-and-service-mesh</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/multi-tenancy</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/security-and-auth</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/jwt-vs-session-cookies</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/oauth-and-oidc</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/authorization-and-permissions</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/encryption-and-key-management</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/end-to-end-encryption</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/privacy-and-data-deletion</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/audit-logging</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/trust-and-safety</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/sandboxing-untrusted-code</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/realtime-systems</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/websockets-vs-sse-vs-long-polling</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/presence-and-connection-management</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/group-chat-fan-out</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/fan-out-on-write-vs-read</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/activity-feeds-and-notification-inbox</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/push-notifications</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/sending-email-at-scale</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/email-inbox-storage</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/iot-device-fleets</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/offline-first-sync</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/crdts-and-operational-transformation</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/mobile-system-design</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/matchmaking-and-skill-rating</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/multiplayer-game-servers</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/rate-limiting-and-resilience</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/thundering-herd</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/rate-limiting-algorithms</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/ddos-protection</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/load-shedding-and-backpressure</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/distributed-transactions-and-idempotency</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/idempotency-keys</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/inventory-and-flash-sales</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/bookings-and-reservations</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/calendar-and-scheduling-systems</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/shopping-cart-and-checkout</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/payments-and-ledgers</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/digital-wallets</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/fraud-detection</loc><lastmod>2026-10-27</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/low-latency-systems</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/subscriptions-and-recurring-billing</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/market-data-distribution</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/unique-ids-and-time</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/logical-clocks</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/message-ordering</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/hashing-and-encoding</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/time-zones-and-dates</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/internationalization</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/observability-and-operations</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/distributed-tracing</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/slos-and-error-budgets</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/deployment-strategies</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/experiments-and-feature-flags</loc><lastmod>2026-10-27</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/cost-optimisation</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/testing-distributed-systems</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/incident-response</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/backups-and-disaster-recovery</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/llm-systems</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/gpu-inference-serving</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/guides/ai-agents</loc><lastmod>2026-10-24</lastmod><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/companies/amazon</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/google</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/meta</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/microsoft</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/uber</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/linkedin</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/stripe</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/anthropic</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/atlassian</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/netflix</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/tiktok</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/airbnb</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/databricks</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/snap</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/apple</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/openai</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/pinterest</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/discord</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/datadog</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/shopify</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/dropbox</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/lyft</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/x</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/booking-com</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/coinbase</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/instacart</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/robinhood</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/bloomberg</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/doordash</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/electronic-arts</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/notion</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/nvidia</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/paypal</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/reddit</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/riot-games</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/roblox</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/slack</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/snowflake</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/activision</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/adobe</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/cloudflare</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/confluent</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/ebay</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/epic-games</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/expedia</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/figma</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/grab</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/salesforce</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/spotify</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/twilio</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/zapier</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/akamai</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/bumble</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/hubspot</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/indeed</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/mercor</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/strava</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/thumbtack</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/upwork</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/walmart</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/yelp</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/companies/zoom</loc><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/mock/anthropic</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/google</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/meta</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/amazon</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/openai</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/microsoft</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/uber</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/doordash</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/netflix</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/stripe</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/nvidia</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/linkedin</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/atlassian</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/airbnb</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/datadog</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/lyft</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/apple</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/pinterest</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/dropbox</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/snap</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/shopify</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/discord</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/robinhood</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/tiktok</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/bloomberg</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/booking-com</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/coinbase</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/instacart</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/adobe</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/paypal</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/salesforce</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/databricks</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/snowflake</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/hubspot</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/confluent</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/grab</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/notion</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/slack</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/spotify</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/mock/figma</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/compare</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/compare/hello-interview</loc><lastmod>2026-09-30</lastmod><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/compare/exponent</loc><lastmod>2026-09-30</lastmod><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/compare/design-gurus</loc><lastmod>2026-09-30</lastmod><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/compare/bytebytego</loc><lastmod>2026-09-30</lastmod><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/compare/educative</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/compare/codemia</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/compare/interviewing-io</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/compare/system-design-primer</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/compare/chatgpt</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/tools/estimator</loc><changefreq>monthly</changefreq><priority>0.7</priority></url>
  <url><loc>https://sysdesignprep.com/concepts</loc><changefreq>weekly</changefreq><priority>0.6</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/token-bucket</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/hash-ring</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/bloom-filter</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/lru-cache</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/raft-consensus</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/load-balancing-algorithms</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/circuit-breaker</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/exponential-backoff</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/quorum-reads-writes</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/queueing-and-littles-law</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/geohash</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/merkle-tree</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/kafka-partitions-consumer-groups</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/two-phase-commit</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/shard-key</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/vector-clocks</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/idempotency-keys</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/read-your-writes</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/cache-stampede</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/fencing-tokens</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/fan-out-on-write-vs-read</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/gossip-protocol</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/composite-index</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/lsm-tree</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/snowflake-id</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/cap-theorem</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/tail-latency</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/optimistic-vs-pessimistic-locking</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/hyperloglog</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/transactional-outbox</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/cursor-pagination</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/load-shedding</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/heartbeat-failure-detection</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/saga-pattern</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/autoscaling</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/cdn-caching</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/count-min-sketch</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/database-failover</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/realtime-delivery</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/write-ahead-log</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/bulkhead-pattern</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/erasure-coding</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/inverted-index</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/trie-typeahead</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/event-sourcing</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/delivery-semantics</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/cache-write-policies</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/deadline-propagation</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/connection-pooling</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/isolation-levels</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/watermarks</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/b-tree</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/canary-deployment</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/distributed-rate-limiting</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/skip-list</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/row-vs-column-storage</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/hot-keys</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/crdts</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/vector-search-ivf</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/deadlocks</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/quadtree</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/adaptive-bitrate-streaming</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/content-defined-chunking</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/message-ordering</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/short-code-collisions</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/slo-burn-rate-alerts</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/trace-sampling</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/shuffle-sharding</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/graceful-shutdown</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/online-schema-migration</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/fair-queuing</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/ab-test-peeking</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/ranking-algorithms</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/timing-wheel</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/shortest-path-routing</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/matchmaking</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/multi-armed-bandit</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/dispatch-matching</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/ad-auctions</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/time-series-rollups</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/backups-and-recovery</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/clock-skew</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/double-entry-ledger</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/batching</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/rendezvous-hashing</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/retry-storms</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/feature-flag-rollouts</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/multipart-upload</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/dead-letter-queue</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/health-checks</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/http-caching</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/session-management</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/hinted-handoff</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/presence</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/multi-region-databases</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/dns-failover</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/reservation-holds</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/compression-tradeoffs</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/parallel-transcoding</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/log-compaction</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/storage-tiering</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/surge-pricing</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/cache-sizing</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/webhook-delivery</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/uuid-primary-keys</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/priority-queues</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/local-vs-global-indexes</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/serverless-cold-starts</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/reservoir-sampling</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/skewed-joins</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/n-plus-one-queries</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/websocket-routing</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/mvcc-bloat</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/typeahead-debounce</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/consumer-rebalancing</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/coordinated-omission</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/concepts/adaptive-concurrency-limits</loc><changefreq>monthly</changefreq><priority>0.8</priority></url>
  <url><loc>https://sysdesignprep.com/q/url-shortener</loc><lastmod>2026-09-20</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/slack</loc><lastmod>2026-09-22</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/payment-system</loc><lastmod>2026-09-20</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/news-feed</loc><lastmod>2026-09-22</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/video-streaming</loc><lastmod>2026-09-21</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/google-maps</loc><lastmod>2026-09-20</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/matchmaking</loc><lastmod>2026-09-20</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/ride-sharing</loc><lastmod>2026-09-20</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/notification-system</loc><lastmod>2026-09-21</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/collaborative-editor</loc><lastmod>2026-09-22</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/llm-inference</loc><lastmod>2026-09-22</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/chatgpt</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/distributed-cache</loc><lastmod>2026-09-22</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/web-crawler</loc><lastmod>2026-09-22</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/rate-limiter</loc><lastmod>2026-09-22</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/file-sync</loc><lastmod>2026-09-22</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/ticketing</loc><lastmod>2026-09-22</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/typeahead</loc><lastmod>2026-09-22</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/ad-click-aggregator</loc><lastmod>2026-09-22</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/job-scheduler</loc><lastmod>2026-09-22</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/stock-exchange</loc><lastmod>2026-09-22</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/contractor-matching</loc><lastmod>2026-09-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/instagram</loc><lastmod>2026-09-30</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/whatsapp</loc><lastmod>2026-09-30</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/netflix</loc><lastmod>2026-09-30</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/yelp</loc><lastmod>2026-09-30</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/leaderboard</loc><lastmod>2026-09-30</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/key-value-store</loc><lastmod>2026-09-30</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/unique-id-generator</loc><lastmod>2026-09-30</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/online-judge</loc><lastmod>2026-09-30</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/airbnb</loc><lastmod>2026-09-30</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/message-queue</loc><lastmod>2026-09-30</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/metrics-monitoring</loc><lastmod>2026-09-30</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/tinder</loc><lastmod>2026-09-30</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/reddit</loc><lastmod>2026-09-30</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/doordash</loc><lastmod>2026-09-30</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/step-functions</loc><lastmod>2026-10-12</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/airflow</loc><lastmod>2026-10-10</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/zapier</loc><lastmod>2026-10-10</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/online-auction</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/live-comments</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/top-k</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/video-conferencing</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/web-search</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/spotify</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/gmail</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/e-commerce</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/file-distribution</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/recommendation-system</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/distributed-lock</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/object-storage</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/calendar</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/deployment-system</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/logging-system</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/live-streaming</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/price-tracker</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/strava</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/post-search</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/figma</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/load-balancer</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/rag-system</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/cdn</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/api-gateway</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/social-graph</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/ad-serving</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/github</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/digital-wallet</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/multiplayer-game</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/tiktok</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/news-aggregator</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/ab-testing</loc><lastmod>2026-10-26</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/code-completion</loc><lastmod>2026-10-27</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/nearby-friends</loc><lastmod>2026-10-27</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/fraud-detection</loc><lastmod>2026-10-27</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/pastebin</loc><lastmod>2026-10-27</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/webhook-delivery</loc><lastmod>2026-10-27</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/pinterest</loc><lastmod>2026-10-27</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/vector-database</loc><lastmod>2026-10-27</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/content-moderation</loc><lastmod>2026-10-27</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/robinhood</loc><lastmod>2026-10-27</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/flight-booking</loc><lastmod>2026-10-27</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/container-orchestrator</loc><lastmod>2026-10-27</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
  <url><loc>https://sysdesignprep.com/q/discord</loc><lastmod>2026-10-27</lastmod><changefreq>monthly</changefreq><priority>0.9</priority></url>
</urlset>
