--- title: Netflix System Design- Backend Architecture | daily.dev description: Netflix accounts for about 15% of the world's internet bandwidth traffic. Netflix operates in two clouds Amazon Web Services and Open Connect (Netflix content... canonical: https://daily.dev/posts/netflix-system-design--backend-architecture-g2q-lrrvj twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Netflix System Design- Backend Architecture | daily.dev og:description: Netflix accounts for about 15% of the world's internet bandwidth traffic. Netflix operates in two clouds Amazon Web Services and Open Connect (Netflix content... og:url: https://daily.dev/posts/netflix-system-design--backend-architecture-g2q-lrrvj og:image: https://api.daily.dev/og/posts/G2Q_LRrvJ.png og:image:alt: Netflix System Design- Backend Architecture og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Netflix System Design- Backend Architecture **[Community Picks](https://daily.dev/sources/community)** · 11 min read · 742 upvotes · 32 comments ## Summary Netflix accounts for about 15% of the world's internet bandwidth traffic. Netflix operates in two clouds Amazon Web Services and Open Connect (Netflix content delivery network) The overall Netflix system consists of three main parts. Zuul as its API gateway is built to allow dynamic routing, traffic monitoring, and security, resilience to The Netty handlers on the front and back of the filters. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@loftwah** · 11 upvotes > These are always super interesting but I doubt I'll ever need to handle anywhere near 15% of the world's traffic anytime soon :D. **@avinashmeetoo** · 6 upvotes > Very interesting. And this gives you an idea of how complex a software architecture needs to be to serve 15% of the world's traffic. > > I like the idea of Chaos Monkey at Netflix, a service which randomly kills a server from production, and Chaos Kong, which kills an entire AWS region! I can only imagine the kind of debugging and redeployment which follow such events if they cause some kind of outage. > > This is what I call living on the cutting edge :-) **@keen** · 2 upvotes > Interesting. Wonder if there's the same for Youtube. I'm always amazed how optimized and fast their CDN is. > > My net is spotty so there are times sites wouldn't even load however a Youtube video can play, even if it's just the video while literally eveything else on page won't load such as menu bars, comments and suggestions. It's amazing how optimize they are. > > I can only know when my net is dead is when my YT wont play or buffers. **@mateusmpereira** · 1 upvotes > Always learning from the big techs **@saschabochum** · 1 upvotes > Nice in. Thx ## Similar posts on daily.dev - [Don’t just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) · CNCF · 1 upvotes · 0 comments - [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) · CNCF · 1 upvotes · 0 comments - [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) · CNCF · 0 upvotes · 0 comments --- Tags: [#aws](https://daily.dev/tags/aws), [#open-source](https://daily.dev/tags/open-source), [#architecture](https://daily.dev/tags/architecture), [#netflix](https://daily.dev/tags/netflix), [#kafka](https://daily.dev/tags/kafka), [#microservices](https://daily.dev/tags/microservices), [#api-gateway](https://daily.dev/tags/api-gateway), [#apache-cassandra](https://daily.dev/tags/apache-cassandra), [#aws-s3](https://daily.dev/tags/aws-s3), [#aws-ec2](https://daily.dev/tags/aws-ec2) [View this post on daily.dev](https://daily.dev/posts/netflix-system-design--backend-architecture-g2q-lrrvj) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Netflix System Design- Backend Architecture","url":"https://daily.dev/posts/netflix-system-design--backend-architecture-g2q-lrrvj","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/netflix-system-design--backend-architecture-g2q-lrrvj"},"datePublished":"2022-10-30T14:11:03.977Z","dateModified":"2023-12-07T12:02:45.284Z","description":"Netflix accounts for about 15% of the world's internet bandwidth traffic. 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And this gives you an idea of how complex a software architecture needs to be to serve 15% of the world’s traffic.\nI like the idea of Chaos Monkey at Netflix, a service which randomly kills a server from production, and Chaos Kong, which kills an entire AWS region! I can only imagine the kind of debugging and redeployment which follow such events if they cause some kind of outage.\nThis is what I call living on the cutting edge :-)","datePublished":"2022-10-31T03:59:41.954Z","dateModified":"2022-10-31T06:06:41.082Z","url":"https://daily.dev/posts/G2Q_LRrvJ#c-F08RS-AJ3","author":{"@type":"Person","name":"Avinash Meetoo","url":"https://daily.dev/avinashmeetoo","image":"https://media.daily.dev/image/upload/s--O0TOmw4y--/f_auto/v1715772965/public/noProfile"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":6}},{"@type":"Comment","text":"Interesting. Wonder if there’s the same for Youtube. I’m always amazed how optimized and fast their CDN is.\nMy net is spotty so there are times sites wouldn’t even load however a Youtube video can play, even if it’s just the video while literally eveything else on page won’t load such as menu bars, comments and suggestions. It’s amazing how optimize they are.\nI can only know when my net is dead is when my YT wont play or buffers.","datePublished":"2022-11-02T00:55:42.381Z","url":"https://daily.dev/posts/G2Q_LRrvJ#c-hUhm94-Kp","author":{"@type":"Person","name":"Keanu Kent Gargar","url":"https://daily.dev/keen","image":"https://media.daily.dev/image/upload/f_auto/v1645286608/avatars/tuAS1pyYMt8aWgWVL3u15"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":2}},{"@type":"Comment","text":"Always learning from the big techs","datePublished":"2022-11-04T18:07:50.884Z","url":"https://daily.dev/posts/G2Q_LRrvJ#c-iCKLO1Rvn","author":{"@type":"Person","name":"Mateus Michelli Pereira","url":"https://daily.dev/mateusmpereira","image":"https://avatars.githubusercontent.com/u/46699311?v=4"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1}},{"@type":"Comment","text":"Nice in. Thx","datePublished":"2022-12-22T17:04:35.355Z","url":"https://daily.dev/posts/G2Q_LRrvJ#c-22jXkr-JQ","author":{"@type":"Person","name":"Sascha Bajonczak","url":"https://daily.dev/saschabochum","image":"https://lh3.googleusercontent.com/a/AEdFTp65tnmQ7cEn6fFB9XN_2x306Uo64sJghhxnc_k9ww=s96-c"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1}}]} ```