--- title: How Browsers Work | daily.dev description: Browsers transform URLs into HTTP requests, resolve domain names via DNS, establish TCP connections, and parse HTML into a DOM tree. The rendering pipeline... canonical: https://daily.dev/posts/fwoqcdpee twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: How Browsers Work | daily.dev og:description: Browsers transform URLs into HTTP requests, resolve domain names via DNS, establish TCP connections, and parse HTML into a DOM tree. The rendering pipeline... og:url: https://daily.dev/posts/fwoqcdpee og:image: https://api.daily.dev/og/posts/fWOQCdpEe.png og:image:alt: Post cover image 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. # How Browsers Work **[Anja P](https://daily.dev/sources/wvjsfjtde63pxqfasmxfo)** · [@anjapcodes](https://daily.dev/anjapcodes) · 0 upvotes · 0 comments ## Summary Browsers transform URLs into HTTP requests, resolve domain names via DNS, establish TCP connections, and parse HTML into a DOM tree. The rendering pipeline then calculates layout, paints pixels, and composites layers on the GPU. This interactive guide uses hands-on examples to build intuition about each step, from URL normalization through the three-way TCP handshake to how DOM changes trigger reflows and repaints. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [From Code to Pixels: The Rendering Pipeline](https://daily.dev/posts/from-code-to-pixels-the-rendering-pipeline-4m5zvntkn) · JavaScript in Plain English · 5 upvotes · 1 comments - [Understanding React Internals \(Part 1\): From the Browser to React — Why React Exists](https://daily.dev/posts/understanding-react-internals-part-1-from-the-browser-to-react-why-react-exists-uyzoiaxv4) · Medium · 2 upvotes · 0 comments - [Understanding Domains, Subdomains, DNS, and Load Balancers](https://daily.dev/posts/understanding-domains-subdomains-dns-and-load-balancers-rawvialef) · C\# Corner · 0 upvotes · 0 comments --- Tags: [#webdev](https://daily.dev/tags/webdev), [#html](https://daily.dev/tags/html), [#dom](https://daily.dev/tags/dom) [View this post on daily.dev](https://daily.dev/posts/fwoqcdpee) ```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":"DiscussionForumPosting","mainEntityOfPage":"https://daily.dev/posts/fwoqcdpee","headline":"How Browsers Work","text":"Shared: How Browsers Work","url":"https://daily.dev/posts/fwoqcdpee","datePublished":"2026-01-21T12:37:02.118Z","dateModified":"2026-01-21T12:37:02.120Z","author":{"@type":"Person","name":"Anja P","url":"https://daily.dev/anjapcodes","image":"https://media.daily.dev/image/upload/s--M_c0s8Ky--/f_auto/v1721658650/avatars/avatar_WVJSfJtDe63PxQFAsmXFO","description":"< Self-taught front-end developer + coding bootcamp grad, tech enthusiast + design lover + poet />","interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"EndorseAction"},"userInteractionCount":51660}},"image":"https://media.daily.dev/image/upload/s--HRgLpUt6--/f_auto/v1722860399/public/Placeholder%2003","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"sharedContent":{"@type":"WebPage","url":"https://api.daily.dev/r/1wzz0TE7K"},"isPartOf":{"@type":"WebPage","url":"https://daily.dev/sources/wvjsfjtde63pxqfasmxfo","name":"Anja P"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Anja P","item":"https://daily.dev/sources/wvjsfjtde63pxqfasmxfo"},{"@type":"ListItem","position":3,"name":"How Browsers Work"}]} ```