--- title: You're using a too-old browser | daily.dev description: A blog owner explains blocking old browser user agents to combat high-volume crawlers gathering data for LLM training. The blocking affects legitimate users... canonical: https://daily.dev/posts/you-re-using-a-too-old-browser-fswwesilr twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: You're using a too-old browser | daily.dev og:description: A blog owner explains blocking old browser user agents to combat high-volume crawlers gathering data for LLM training. The blocking affects legitimate users... og:url: https://daily.dev/posts/you-re-using-a-too-old-browser-fswwesilr og:image: https://api.daily.dev/og/posts/fswwEsilr.png og:image:alt: You're using a too-old browser 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. # You're using a too-old browser **[Planet Golang](https://daily.dev/sources/planetgolang)** · 2 min read · 1 upvotes · 0 comments ## Summary A blog owner explains blocking old browser user agents to combat high-volume crawlers gathering data for LLM training. The blocking affects legitimate users with outdated browsers and archive.today services that use old Chrome user agents. Vivaldi users may need to adjust their User Agent Brand Masking settings, and archive.org is recommended as a better-behaved alternative for archiving. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [You're using a too-old browser](https://daily.dev/posts/you-re-using-a-too-old-browser-gg8jcdsh3) · Planet Golang · 0 upvotes · 0 comments - [You're using a too-old browser](https://daily.dev/posts/you-re-using-a-too-old-browser-bh5t2i74o) · Lobsters · 0 upvotes · 0 comments - [You're using a too-old browser](https://daily.dev/posts/you-re-using-a-too-old-browser-snvuntvsx) · Lobsters · 1 upvotes · 0 comments --- Tags: [#llm](https://daily.dev/tags/llm), [#google-chrome](https://daily.dev/tags/google-chrome), [#web-security](https://daily.dev/tags/web-security) [View this post on daily.dev](https://daily.dev/posts/you-re-using-a-too-old-browser-fswwesilr) ```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":"You're using a too-old browser","url":"https://daily.dev/posts/you-re-using-a-too-old-browser-fswwesilr","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/you-re-using-a-too-old-browser-fswwesilr"},"datePublished":"2026-02-04T13:44:26.841Z","dateModified":"2026-02-04T13:44:44.095Z","description":"A blog owner explains blocking old browser user agents to combat high-volume crawlers gathering data for LLM training. 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