--- title: Image Optimization — the #1 reason sites are slow description: Discussion about "Image Optimization — the #1 reason sites are slow" on daily.dev - join the developer community canonical: https://daily.dev/posts/image-optimization-the-1-reason-sites-are-slow-mc4g0u77r twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Image Optimization — the #1 reason sites are slow | daily.dev og:description: Discussion about "Image Optimization — the #1 reason sites are slow" on daily.dev - join the developer community og:url: https://daily.dev/posts/image-optimization-the-1-reason-sites-are-slow-mc4g0u77r og:image: https://api.daily.dev/og/posts/mc4g0u77R.png og:image:alt: Image Optimization — the #1 reason sites are slow 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. # Image Optimization — the #1 reason sites are slow **[Frontend developer](https://daily.dev/sources/frontend_developer)** · [@mohifullstack](https://daily.dev/mohifullstack) · 1 min read · 0 upvotes · 0 comments ## Content  --- Tags: [#webdev](https://daily.dev/tags/webdev), [#javascript](https://daily.dev/tags/javascript), [#performance](https://daily.dev/tags/performance), [#nextjs](https://daily.dev/tags/nextjs) [View this post on daily.dev](https://daily.dev/posts/image-optimization-the-1-reason-sites-are-slow-mc4g0u77r) ```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/image-optimization-the-1-reason-sites-are-slow-mc4g0u77r","headline":"Image Optimization — the #1 reason sites are slow","text":"Discussion about \"Image Optimization — the #1 reason sites are slow\" on daily.dev - join the developer community","url":"https://daily.dev/posts/image-optimization-the-1-reason-sites-are-slow-mc4g0u77r","datePublished":"2026-03-30T12:45:01.475Z","dateModified":"2026-03-30T12:46:11.489Z","author":{"@type":"Person","name":"MOHI UDDIN","url":"https://daily.dev/mohifullstack","image":"https://media.daily.dev/image/upload/s--8RgfhdLj--/f_auto/v1790862270/avatars/avatar_EaAOUEuOiOYZscNNJuGot?_a=BAMAMicg0","description":"Full-Stack Dev | I Build Web Apps, Marketplaces & Booking Platforms | Next.js + Node.js | 4+ Years |","interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"EndorseAction"},"userInteractionCount":1900}},"interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"isPartOf":{"@type":"WebPage","url":"https://daily.dev/squads/frontend_developer","name":"Frontend developer"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Frontend developer","item":"https://daily.dev/squads/frontend_developer"},{"@type":"ListItem","position":3,"name":"Image Optimization — the #1 reason sites are slow"}]} ```