--- title: The Vary HTTP header | daily.dev description: This post discusses the purpose of the Vary HTTP header and how it solves caching issues by providing a configurable multi-dimensional cache key. canonical: https://daily.dev/posts/the-vary-http-header-skdn0cqxs twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: The Vary HTTP header | daily.dev og:description: This post discusses the purpose of the Vary HTTP header and how it solves caching issues by providing a configurable multi-dimensional cache key. og:url: https://daily.dev/posts/the-vary-http-header-skdn0cqxs og:image: https://api.daily.dev/og/posts/sKDn0cqxS.png og:image:alt: The Vary HTTP header 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 Vary HTTP header **[A Java geek](https://daily.dev/sources/frankel)** · 1 min read · 7 upvotes · 0 comments ## Summary This post discusses the purpose of the Vary HTTP header and how it solves caching issues by providing a configurable multi-dimensional cache key. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#rest-api](https://daily.dev/tags/rest-api) [View this post on daily.dev](https://daily.dev/posts/the-vary-http-header-skdn0cqxs) ```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 Vary HTTP header","url":"https://daily.dev/posts/the-vary-http-header-skdn0cqxs","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/the-vary-http-header-skdn0cqxs"},"datePublished":"2024-05-05T15:31:28.065Z","dateModified":"2024-05-09T08:39:06.345Z","description":"This post discusses the purpose of the Vary HTTP header and how it solves caching issues by providing a configurable multi-dimensional cache key.","image":"https://media.daily.dev/image/upload/s--CxzD6vbw--/f_auto/v1722860399/public/Placeholder%2005","thumbnailUrl":"https://media.daily.dev/image/upload/s--CxzD6vbw--/f_auto/v1722860399/public/Placeholder%2005","isAccessibleForFree":true,"articleSection":"A Java geek","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":"A Java geek","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/b7f3fdbf443347ea84705578a195085b","url":"https://daily.dev/sources/frankel"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/the-vary-http-header-skdn0cqxs","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":7},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"rest-api","timeRequired":"PT1M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"A Java geek","item":"https://daily.dev/sources/frankel"},{"@type":"ListItem","position":3,"name":"The Vary HTTP header"}]} ```