--- title: Web Performance Regression Detection (Part 1 of 3) description: This post discusses the Performance Program at Pinterest, including the importance of detecting and preventing performance regressions, the use of Pinner Wait... canonical: https://daily.dev/posts/web-performance-regression-detection-part-1-of-3--pguiqnde2 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Web Performance Regression Detection (Part 1 of 3) | daily.dev og:description: This post discusses the Performance Program at Pinterest, including the importance of detecting and preventing performance regressions, the use of Pinner Wait... og:url: https://daily.dev/posts/web-performance-regression-detection-part-1-of-3--pguiqnde2 og:image: https://api.daily.dev/og/posts/PguIqNde2.png og:image:alt: Web Performance Regression Detection (Part 1 of 3) 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. # Web Performance Regression Detection (Part 1 of 3) **[Pinterest Engineering](https://daily.dev/sources/pint)** · 3 min read · 2 upvotes · 0 comments ## Summary This post discusses the Performance Program at Pinterest, including the importance of detecting and preventing performance regressions, the use of Pinner Wait Time (PWT) metrics, and the ownership and responsibilities of surface-owning teams. It also provides a glimpse into the tooling and processes for regression detection. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## 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 - [CNCF Unveils Schedule for KubeCon \+ CloudNativeCon Europe 2026](https://daily.dev/posts/cncf-unveils-schedule-for-kubecon-cloudnativecon-europe-2026-ikhcoa5cb) · CNCF · 2 upvotes · 0 comments - [CNCF Debuts KubeCon \+ CloudNativeCon Japan 2026 Schedule](https://daily.dev/posts/cncf-debuts-kubecon-cloudnativecon-japan-2026-schedule-xp5pyudub) · CNCF · 1 upvotes · 0 comments --- Tags: [#webdev](https://daily.dev/tags/webdev), [#pinterest](https://daily.dev/tags/pinterest) [View this post on daily.dev](https://daily.dev/posts/web-performance-regression-detection-part-1-of-3--pguiqnde2) ```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":"Web Performance Regression Detection (Part 1 of 3)","url":"https://daily.dev/posts/web-performance-regression-detection-part-1-of-3--pguiqnde2","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/web-performance-regression-detection-part-1-of-3--pguiqnde2"},"datePublished":"2024-04-22T18:17:46.074Z","dateModified":"2024-05-09T09:13:33.132Z","description":"This post discusses the Performance Program at Pinterest, including the importance of detecting and preventing performance regressions, the use of Pinner Wait...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/e20ccb689d58628db27dad1f2691312f?_a=AQAEufR","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/e20ccb689d58628db27dad1f2691312f?_a=AQAEufR","isAccessibleForFree":true,"articleSection":"Pinterest Engineering","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Pinterest Engineering","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/f0dc15da4f9c44fdbc5770106dd3d0a9","url":"https://daily.dev/sources/pint"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/web-performance-regression-detection-part-1-of-3--pguiqnde2","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":2},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"webdev,pinterest","timeRequired":"PT3M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Pinterest Engineering","item":"https://daily.dev/sources/pint"},{"@type":"ListItem","position":3,"name":"Web Performance Regression Detection (Part 1 of 3)"}]} ```