--- title: The 13-Second Request | daily.dev description: A flaky automation test that failed intermittently for two months turned out to be a resource contention problem in a shared test environment, not a frontend... canonical: https://daily.dev/posts/the-13-second-request-sh8zcd0r2 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: The 13-Second Request | daily.dev og:description: A flaky automation test that failed intermittently for two months turned out to be a resource contention problem in a shared test environment, not a frontend... og:url: https://daily.dev/posts/the-13-second-request-sh8zcd0r2 og:image: https://api.daily.dev/og/posts/sH8ZcD0R2.png og:image:alt: The 13-Second Request 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. # The 13-Second Request **[Medium](https://daily.dev/sources/medium_js)** · 7 min read · 0 upvotes · 0 comments ## Summary A flaky automation test that failed intermittently for two months turned out to be a resource contention problem in a shared test environment, not a frontend regression. The investigation revealed that a 13-second request was only executing for ~0.5 seconds — the remaining 12.5 seconds were spent waiting on shared downstream dependencies like address lookups and DB connections. The root cause was a combination of doubled test environment traffic and heavier pages with more backend calls per request, which together pushed shared resources into a queueing bottleneck. The key insight: execution time and response time are not the same thing, and slow waiting requires a fundamentally different investigation approach than slow execution. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Test data wait times are slowing AI adoption more than code ever did](https://daily.dev/posts/test-data-wait-times-are-slowing-ai-adoption-more-than-code-ever-did-jfr9dioml) · The New Stack · 0 upvotes · 0 comments - [The 3.5-Second Lie: How a Blind Spot in My Telemetry Hid Two Production Bugs](https://daily.dev/posts/the-3-5-second-lie-how-a-blind-spot-in-my-telemetry-hid-two-production-bugs-pzo1aofwi) · Medium · 0 upvotes · 0 comments --- Tags: [#devops](https://daily.dev/tags/devops), [#testing](https://daily.dev/tags/testing), [#observability](https://daily.dev/tags/observability), [#distributed-systems](https://daily.dev/tags/distributed-systems) [View this post on daily.dev](https://daily.dev/posts/the-13-second-request-sh8zcd0r2) ```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":"The 13-Second Request","url":"https://daily.dev/posts/the-13-second-request-sh8zcd0r2","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/the-13-second-request-sh8zcd0r2"},"datePublished":"2026-07-12T12:14:59.710Z","dateModified":"2026-07-12T12:17:19.696Z","description":"A flaky automation test that failed intermittently for two months turned out to be a resource contention problem in a shared test environment, not a frontend...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/e99b92f66bd7c1d87274c02103830dea?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/e99b92f66bd7c1d87274c02103830dea?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Medium","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":"Medium","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/medium","url":"https://daily.dev/sources/medium_js"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/the-13-second-request-sh8zcd0r2","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"devops,testing,observability,distributed-systems","timeRequired":"PT7M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Medium","item":"https://daily.dev/sources/medium_js"},{"@type":"ListItem","position":3,"name":"The 13-Second Request"}]} ```