The Plain Fetch viewer
In short
The viewer requests a URL the way a plain-fetch agent does: no JavaScript, one request for HTML, one for markdown, one for llms.txt and one for a path that should not exist. It shows the initial HTML on the left, the readable text on the right, and seven flags underneath.
Pre-loaded with www.wikipedia.org, read 4 November 2026. Type any public URL to run your own.
The page answers a plain fetch: 7 of 7 checks found.
Initial HTML what a plain fetch receives
<!DOCTYPE html>
<html data-dpl-id="dpl_DJsLePt6Q26d9nMZDNy2BGwA9YeQ" class="VEU71W_className gb9FOq_className VEU71W_variable gb9FOq_variable" lang="en" style="--font-mono:'Geist Mono', ui-monospace, SFMono-Regular, Menlo, Mon [... 182 characters folded ...]>
<head>
<meta charSet="utf-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
[... 34 more head elements folded ...]
<title>Next.js by Vercel - The React Framework
</title>
<meta name="description" content="Next.js by Vercel is the full-stack React framework for the web."/>
<link rel="canonical" href="https://nextjs.org"/>
<link rel="alternate" type="text/markdown" href="https://nextjs.org/.md"/>
[... 14 more head elements folded ...]
</head>
<body>
<div hidden=""><!--$--><!--/$-->
</div><!--$--><!--/$-->
<div class="@container transition-[padding-right] duration-150 ease-[cubic-bezier(0.175,0.885,0.32,1.1)] motion-reduce:transition-none min-[768px]:[[data-geistdocs-chat-open]_&]:pr-[400px]!" data-geistdocs-container="true">
<header class="sticky top-0 z-40 flex h-16 justify-center bg-background-200 transition-shadow motion-reduce:transition-none">
<div style="display:contents">
<div class="@container mx-auto flex w-full max-w-[1448px] justify-between px-2">
<div class="flex select-none flex-row items-center"><span class="flex items-center gap-2.5 ml-4"><a aria-label="Vercel Open Source" class="-mx-2 flex items-center rounded-md p-2 text-gray-1000 outline-none focus-visible:ring-2 focus-visible:ring-blue-700 focus-visible:ring-inset" rel="noopener" target="_blank" href="https://vercel.com/oss">
<svg aria-hidden="true" focusable="false" height="18" viewBox="0 0 115 100" width="21"><g><path clip-rule="evenodd" d="M57.5 0 115 100H0z" fill="currentColor" fill-rule="evenodd"></path></g>
</svg></a>
<div class="w-5 text-center text-gray-alpha-400 text-lg dark:text-gray-600">
<svg viewBox="0 0 16 16" height="20" width="20" data-slot="geist-icon" style="color:currentColor">[... 133 characters folded ...]
</svg>
</div><a class="flex @min-[1024px]:hidden items-center text-gray-1000" href="/"><img alt="NextjsLogotype" data-slot="geist-logo" loading="eager" width="79" height="16" decoding="async" data-nimg="1" class="geist-hide-on-dark" style="color:transparent" src="/_next/static/immutable/media/nextjs-logotype-light.00-_80jv8_dct.svg"/><img alt="NextjsLogotype" data-slot="geist-logo" loading="eager" width="79" height="16" decoding="async" data-nimg="1" class="geist-hide-on-light" style="color:transparent" src="/_next/static/immutable/media/nextjs-logotype-dark.3h4a2z2v_dkod.svg"/></a>
<div class="@min-[1024px]:contents hidden">
<nav aria-label="Product navigation" data-orientation="horizontal" dir="ltr" class="group/navigation-menu relative z-10 flex max-w-max flex-1 items-center justify-center" data-slot="navigation-menu" data-viewport="false">
<div style="position:relative">
<ul data-orientation="horizontal" class="group flex flex-1 list-none justify-center gap-1 h-16 items-stretch" data-slot="navigation-menu-list" dir="ltr">
<li class="relative -mr-3 flex h-full items-center" data-slot="navigation-menu-item"><a class="relative flex h-full items-center text-gray-1000 outline-none before:absolute before:inset-x-0 before:top-1/2 before:h-9 before:-translate-y-1/2 before:rounded-md before:content-[''] focus-visible:bef [... 88 characters folded ...]><img alt="NextjsLogotype" data-slot="geist-logo" loading="eager" width="79" height="16" decoding="async" data-nimg="1" class="geist-hide-on-dark" style="color:transparent" src="/_next/static/immutable/media/nextjs-logotype-light.00-_80jv8_dct.svg"/><img alt="NextjsLogotype" data-slot="geist-logo" loading="eager" width="79" height="16" decoding="async" data-nimg="1" class="geist-hide-on-light" style="color:transparent" src="/_next/static/immutable/media/nextjs-logotype-dark.3h4a2z2v_dkod.svg"/></a><button id="radix-_R_3dd2qlb_-trigger-oss-products" data-state="closed" aria-expanded="false" class="group gap-1 text-sm transition-colors hover:text-gray-1000 focus:text-gray-1000 focus:outline-none disabled:pointer-eve [... 403 characters folded ...]>
<svg viewBox="0 0 16 16" height="16" width="16" data-slot="geist-icon" style="color:currentColor" aria-hidden="true" class="ease relative top-px size-3.5 text-gray-900 transition-[transform,color] duration-200 group-hove [... 53 characters folded ...]>[... 181 characters folded ...]
</svg>
<div class="absolute inset-x-0 bottom-0 z-50 -mx-12 hidden h-[18px] group-data-[state=open]:flex">
</div></button>
<div id="radix-_R_3dd2qlb_-content-oss-products" aria-labelledby="radix-_R_3dd2qlb_-trigger-oss-products" data-orientation="horizontal" data-state="closed" class="fixed inset-x-0 top-16 z-30 w-screen bg-background-200 sh [... 196 characters folded ...]>
<div class="mx-auto w-full max-w-[1448px] px-2">
<div class="flex flex-nowrap gap-x-10 pt-4 pb-6 pl-4">
<div class="flex shrink-0 flex-col">
<p class="text-gray-900 text-label-14">Latest
</p>
<div class="mt-[5px] flex flex-1 gap-x-10"><a class="block w-full text-sm outline-none transition-colors w-fit! rounded-lg no-underline outline-none focus-visible:ring-2 focus-visible:ring-blue-700 focus-visible:ring-offset-2 focus-visible:ring-offset-background- [... 134 characters folded ...]><span class="flex h-full w-[220px] flex-col gap-3 rounded-lg border border-gray-alpha-400 bg-background-100 p-4 no-underline transition-colors hover:border-gray-alpha-500"><span class="flex flex-1 items-center justify-center rounded-md bg-gray-100">
<svg viewBox="0 0 169 53" height="18" width="57" data-slot="geist-logo-svg">[... 256 characters folded ...]
</svg></span><span class="text-copy-14 text-gray-900">The framework for building agents</span></span></a>
</div>
</div>
<div class="min-w-[180px] shrink-0">
<p class="text-gray-900 text-label-14">Frameworks
</p>
<ul class="mt-[5px] flex list-none flex-col">
<li class="flex"><a class="block w-full text-sm outline-none transition-colors group/osslink inline-flex w-full no-underline outline-none" href="https://svelte.dev/" rel="noopener noreferrer" target="_blank" data-slot="navigation-menu-link" data-radix-collection-item=""><span class="inline-flex items-baseline gap-1 rounded-sm text-gray-1000 text-label-20 group-focus-visible/osslink:ring-2 group-focus-visible/osslink:ring-blue-700 group-focus-visible/osslink:ring-offset-4 group-focus-visible/osslink:ring-offset-background-200"><span class="decoration-1 underline-offset-[5px] group-hover/osslink:underline group-hover/osslink:decoration-gray-500 group-aria-[current=page]/osslink:underline group-aria-[current=page]/osslink:decoration-gray-500">Svelte</span></span></a>
</li>
<li class="flex"><a class="block w-full text-sm outline-none transition-colors group/osslink inline-flex w-full no-underline outline-none" href="https://nuxt.com/" rel="noopener noreferrer" target="_blank" data-slot="navigation-menu-link" data-radix-collection-item=""><span class="inline-flex items-baseline gap-1 rounded-sm text-gray-1000 text-label-20 group-focus-visible/osslink:ring-2 group-focus-visible/osslink:ring-blue-700 group-focus-visible/osslink:ring-offset-4 group-focus-visible/osslink:ring-offset-background-200"><span class="decoration-1 underline-offset-[5px] group-hover/osslink:underline group-hover/osslink:decoration-gray-500 group-aria-[current=page]/osslink:underline group-aria-[current=page]/osslink:decoration-gray-500">Nuxt</span></span></a>
</li>
<li class="flex"><a class="block w-full text-sm outline-none transition-colors group/osslink inline-flex w-full no-underline outline-none" href="https://nitro.build/" rel="noopener noreferrer" target="_blank" data-slot="navigation-menu-link" data-radix-collection-item=""><span class="inline-flex items-baseline gap-1 rounded-sm text-gray-1000 text-label-20 group-focus-visible/osslink:ring-2 group-focus-visible/osslink:ring-blue-700 group-focus-visible/osslink:ring-offset-4 group-focus-visible/osslink:ring-offset-background-200"><span class="decoration-1 underline-offset-[5px] group-hover/osslink:underline group-hover/osslink:decoration-gray-500 group-aria-[current=page]/osslink:underline group-aria-[current=page]/osslink:decoration-gray-500">Nitro</span></span></a>
</li>
</ul>
</div>
<div class="min-w-[180px] shrink-0">
<p class="text-gray-900 text-label-14">SDKs
</p>
<ul class="mt-[5px] flex list-none flex-col">
<li class="flex"><a class="block w-full text-sm outline-none transition-colors group/osslink inline-flex w-full no-underline outline-none" href="https://ai-sdk.dev/" rel="noopener noreferrer" target="_blank" data-slot="navigation-menu-link" data-radix-collection-item=""><span class="inline-flex items-baseline gap-1 rounded-sm text-gray-1000 text-label-20 group-focus-visible/osslink:ring-2 group-focus-visible/osslink:ring-blue-700 group-focus-visible/osslink:ring-offset-4 group-focus-visible/osslink:ring-offset-background-200"><span class="decoration-1 underline-offset-[5px] group-hover/osslink:underline group-hover/osslink:decoration-gray-500 group-aria-[current=page]/osslink:underline group-aria-[current=page]/osslink:decoration-gray-500">AI SDK</span></span></a>
</li>
<li class="flex"><a class="block w-full text-sm outline-none transition-colors group/osslink inline-flex w-full no-underline outline-none" href="https://chat-sdk.dev/" rel="noopener noreferrer" target="_blank" data-slot="navigation-menu-link" data-radix-collection-item=""><span class="inline-flex items-baseline gap-1 rounded-sm text-gray-1000 text-label-20 group-focus-visible/osslink:ring-2 group-focus-visible/osslink:ring-blue-700 group-focus-visible/osslink:ring-offset-4 group-focus-visible/osslink:ring-offset-background-200"><span class="decoration-1 underline-offset-[5px] group-hover/osslink:underline group-hover/osslink:decoration-gray-500 group-aria-[current=page]/osslink:underline group-aria-[current=page]/osslink:decoration-gray-500">Chat SDK</span></span></a>
</li>
<li class="flex"><a class="block w-full text-sm outline-none transition-colors group/osslink inline-flex w-full no-underline outline-none" href="https://flags-sdk.dev/" rel="noopener noreferrer" target="_blank" data-slot="navigation-menu-link" data-radix-collection-item=""><span class="inline-flex items-baseline gap-1 rounded-sm text-gray-1000 text-label-20 group-focus-visible/osslink:ring-2 group-focus-visible/osslink:ring-blue-700 group-focus-visible/osslink:ring-offset-4 group-focus-visible/osslink:ring-offset-background-200"><span class="decoration-1 underline-offset-[5px] group-hover/osslink:underline group-hover/osslink:decoration-gray-500 group-aria-[current=page]/osslink:underline group-aria-[current=page]/osslink:decoration-gray-500">Flags SDK</span></span></a>
</li>
<li class="flex"><a class="block w-full text-sm outline-none transition-colors group/osslink inline-flex w-full no-underline outline-none" href="https://workflow-sdk.dev/" rel="noopener noreferrer" target="_blank" data-slot="navigation-menu-link" data-radix-collection-item=""><span class="inline-flex items-baseline gap-1 rounded-sm text-gray-1000 text-label-20 group-focus-visible/osslink:ring-2 group-focus-visible/osslink:ring-blue-700 group-focus-visible/osslink:ring-offset-4 group-focus-visible/osslink:ring-offset-background-200"><span class="decoration-1 underline-offset-[5px] group-hover/osslink:underline group-hover/osslink:decoration-gray-500 group-aria-[current=page]/osslink:underline group-aria-[current=page]/osslink:decoration-gray-500">Workflow SDK</span></span></a>
</li>
</ul>
</div>
<div class="min-w-[180px] shrink-0">
<p class="text-gray-900 text-label-14">Other
</p>
<ul class="mt-[5px] flex list-none flex-col">
<li class="flex"><a class="block w-full text-sm outline-none transition-colors group/osslink inline-flex w-full no-underline outline-none" href="https://turborepo.dev/" rel="noopener noreferrer" target="_blank" data-slot="navigation-menu-link" data-radix-collection-item=""><span class="inline-flex items-baseline gap-1 rounded-sm text-gray-1000 text-label-20 group-focus-visible/osslink:ring-2 group-focus-visible/osslink:ring-blue-700 group-focus-visible/osslink:ring-offset-4 group-focus-visible/osslink:ring-offset-background-200"><span class="decoration-1 underline-offset-[5px] group-hover/osslink:underline group-hover/osslink:decoration-gray-500 group-aria-[current=page]/osslink:underline group-aria-[current=page]/osslink:decoration-gray-500">Turborepo</span></span></a>
</li>
<li class="flex"><a class="block w-full text-sm outline-none transition-colors group/osslink inline-flex w-full no-underline outline-none" href="https://ui.shadcn.com/" rel="noopener noreferrer" target="_blank" data-slot="navigation-menu-link" data-radix-collection-item=""><span class="inline-flex items-baseline gap-1 rounded-sm text-gray-1000 text-label-20 group-focus-visible/osslink:ring-2 group-focus-visible/osslink:ring-blue-700 group-focus-visible/osslink:ring-offset-4 group-focus-visible/osslink:ring-offset-background-200"><span class="decoration-1 underline-offset-[5px] group-hover/osslink:underline group-hover/osslink:decoration-gray-500 group-aria-[current=page]/osslink:underline group-aria-[current=page]/osslink:decoration-gray-500">shadcn/ui</span></span></a>
</li>
<li class="flex"><a class="block w-full text-sm outline-none transition-colors group/osslink inline-flex w-full no-underline outline-none" href="https://swr.vercel.app/" rel="noopener noreferrer" target="_blank" data-slot="navigation-menu-link" data-radix-collection-item=""><span class="inline-flex items-baseline gap-1 rounded-sm text-gray-1000 text-label-20 group-focus-visible/osslink:ring-2 group-focus-visible/osslink:ring-blue-700 group-focus-visible/osslink:ring-offset-4 group-focus-visible/osslink:ring-offset-background-200"><span class="decoration-1 underline-offset-[5px] group-hover/osslink:underline group-hover/osslink:decoration-gray-500 group-aria-[current=page]/osslink:underline group-aria-[current=page]/osslink:decoration-gray-500">SWR</span></span></a>
</li>
<li class="flex"><a class="block w-full text-sm outline-none transition-colors group/osslink inline-flex w-full no-underline outline-none" href="https://justbash.dev/" rel="noopener noreferrer" target="_blank" data-slot="navigation-menu-link" data-radix-collection-item=""><span class="inline-flex items-baseline gap-1 rounded-sm text-gray-1000 text-label-20 group-focus-visible/osslink:ring-2 group-focus-visible/osslink:ring-blue-700 group-focus-visible/osslink:ring-offset-4 group-focus-visible/osslink:ring-offset-background-200"><span class="decoration-1 underline-offset-[5px] group-hover/osslink:underline group-hover/osslink:decoration-gray-500 group-aria-[current=page]/osslink:underline group-aria-[current=page]/osslink:decoration-gray-500">just-bash</span></span></a>
</li>
<li class="flex"><a class="block w-full text-sm outline-none transition-colors group/osslink inline-flex w-full no-underline outline-none" href="https://deepsec.sh/" rel="noopener noreferrer" target="_blank" data-slot="navigation-menu-link" data-radix-collection-item=""><span class="inline-flex items-baseline gap-1 rounded-sm text-gray-1000 text-label-20 group-focus-visible/osslink:ring-2 group-focus-visible/osslink:ring-blue-700 group-focus-visible/osslink:ring-offset-4 group-focus-visible/osslink:ring-offset-background-200"><span class="decoration-1 underline-offset-[5px] group-hover/osslink:underline group-hover/osslink:decoration-gray-500 group-aria-[current=page]/osslink:underline group-aria-[current=page]/osslink:decoration-gray-500">deepsec</span></span></a>
</li>
</ul>
</div>
</div>
</div>
</div>
</li>
</ul>
</div>
</nav>
<div aria-hidden="true" class="pointer-events-none fixed inset-x-0 top-16 bottom-0 z-0 bg-background-200/60 opacity-0">
</div>
</div></span>
<nav aria-label="Primary navigation" data-orientation="horizontal" dir="ltr" class="group/navigation-menu relative z-10 flex max-w-max flex-1 items-center justify-center" data-slot="navigation-menu" data-viewport="false">
<div style="position:relative">
<ul data-orientation="horizontal" class="group flex-1 list-none justify-center h-16 items-stretch gap-0 @min-[1024px]:flex hidden" data-slot="navigation-menu-list" dir="ltr">
<li class="relative flex" data-slot="navigation-menu-item"><a class="w-full relative flex h-full items-center px-3 text-gray-900 text-sm outline-none transition-colors duration-100 before:absolute before:top-1/2 before:right-1 before:h-9 before:-translate-y-1/2 before:rounded-md [... 272 characters folded ...]>Docs</a>
</li>
<li class="relative flex" data-slot="navigation-menu-item"><a class="w-full relative flex h-full items-center px-3 text-gray-900 text-sm outline-none transition-colors duration-100 before:absolute before:top-1/2 before:right-1 before:left-1 before:h-9 before:-translate-y-1/2 bef [... 268 characters folded ...]>Learn</a>
</li>
<li class="relative flex" data-slot="navigation-menu-item"><a class="w-full relative flex h-full items-center px-3 text-gray-900 text-sm outline-none transition-colors duration-100 before:absolute before:top-1/2 before:right-1 before:left-1 before:h-9 before:-translate-y-1/2 bef [... 271 characters folded ...]>Showcase</a>
</li>
<li class="relative flex" data-slot="navigation-menu-item"><a class="w-full relative flex h-full items-center px-3 text-gray-900 text-sm outline-none transition-colors duration-100 before:absolute before:top-1/2 before:right-1 before:left-1 before:h-9 before:-translate-y-1/2 bef [... 267 characters folded ...]>Blog</a>
</li>
<li class="relative flex" data-slot="navigation-menu-item"><a class="w-full relative flex h-full items-center px-3 text-gray-900 text-sm outline-none transition-colors duration-100 before:absolute before:top-1/2 before:right-1 before:left-1 before:h-9 before:-translate-y-1/2 bef [... 362 characters folded ...]>Templates
<svg viewBox="0 0 16 16" height="12" width="12" data-slot="geist-icon" style="color:currentColor" aria-hidden="true" class="">[... 163 characters folded ...]
</svg></a>
</li>
<li class="relative flex" data-slot="navigation-menu-item"><a class="w-full relative flex h-full items-center px-3 text-gray-900 text-sm outline-none transition-colors duration-100 before:absolute before:top-1/2 before:right-1 before:left-1 before:h-9 before:-translate-y-1/2 bef [... 348 characters folded ...]>Deploy
<svg viewBox="0 0 16 16" height="12" width="12" data-slot="geist-icon" style="color:currentColor" aria-hidden="true" class="">[... 163 characters folded ...]
</svg></a>
</li>
</ul>
</div>
</nav>
<div aria-hidden="true" class="pointer-events-none fixed inset-x-0 top-16 bottom-0 z-0 bg-background-200/60 opacity-0">
</div>
</div>
<div class="mr-4 flex flex-row items-center justify-end gap-2"><button class="h-8 cursor-pointer items-center justify-between rounded-md border-0 bg-background-100 py-0 pr-1.5 pl-3.5 font-normal font-sans text-gray-1000 text-sm shadow-[0_0_0_1px_var(--ds-gray-400)] outline-none hove [... 104 characters folded ...]><span class="pr-6">Search…</span><kbd class="font-sans! [&>span]:font-inherit text-[var(--ds-gray-1000)] bg-[var(--ds-background-100)] shadow-[0_0_0_1px_var(--ds-gray-alpha-400)] !leading-[1.7em] text-xs py-0 h-5 px-1 min-w-5 min-h-5 ml-0.5 inline-flex items-center justify-center rounded" data-geist-kbd="" data-version="v1"><span>⌘K</span></kbd></button><button type="button" tabindex="0" data-react-aria-pressable="true" data-geistdocs-ask-ai="" class="outline-none m-0 p-0 border-0 align-baseline no-underline group/trigger relative cursor-pointer select-none transform tr [... 1627 characters folded ...]><span class="truncate inline-block px-1.5"><span>Ask AI</span></span></button><button type="button" tabindex="0" data-react-aria-pressable="true" data-geistdocs-ask-ai="" class="outline-none m-0 p-0 border-0 align-baseline no-underline group/trigger relative cursor-pointer select-none transform tr [... 1627 characters folded ...]><span class="truncate inline-block px-1.5"><span>Ask AI</span></span></button><a role="link" href="https://github.com/vercel/next.js" target="_blank" type="submit" rel="noopener" tabindex="0" data-react-aria-pressable="true" aria-label="GitHub repository" class="size-8 items-center justify-center [... 152 characters folded ...]><span class="truncate px-1.5 inline-flex items-center justify-center shrink-0"><img alt="" data-slot="geist-logo-icon" aria-hidden="true" loading="eager" width="16" height="16" decoding="async" data-nimg="1" class="geist-hide-on-dark" style="color:transparent" src="/_next/static/immutable/media/logo-github-light.3dl3lqjq1azpp.svg"/><img alt="" data-slot="geist-logo-icon" aria-hidden="true" loading="eager" width="16" height="16" decoding="async" data-nimg="1" class="geist-hide-on-light" style="color:transparent" src="/_next/static/immutable/media/logo-github-dark.1k-70sin_m3qn.svg"/></span></a><button aria-controls="_R_5l2qlb_" aria-expanded="false" aria-label="Open menu" class="relative flex @min-[1024px]:hidden size-8 items-center justify-center rounded-full border border-gray-200 transition-colors hover:bg-gray-100" data-slot="mobile-menu-toggle" type="button"><span class="flex flex-col items-center justify-center gap-[5px]"><span class="block h-[1.5px] w-3.5 bg-gray-1000 transition-transform duration-150"></span><span class="block h-[1.5px] w-3.5 bg-gray-1000 transition-transform duration-150"></span></span></button>
<div class="fixed inset-0 top-16 z-40 @min-[1024px]:hidden bg-background-200 pointer-events-none opacity-0">
</div>
<div class="fixed inset-x-0 top-16 bottom-0 z-40 @min-[1024px]:hidden overflow-y-auto bg-background-200 px-2 pointer-events-none invisible opacity-0" id="_R_5l2qlb_" inert="">
<div class="p-4"><button class="flex h-8 cursor-pointer items-center justify-between rounded-md border-0 bg-background-100 pr-1.5 pl-3.5 font-normal font-sans text-gray-1000 text-sm shadow-[0_0_0_1px_var(--ds-gray-400)] outline-none hove [... 87 characters folded ...]><span class="pr-6">Search…</span><kbd class="font-sans! [&>span]:font-inherit text-[var(--ds-gray-1000)] bg-[var(--ds-background-100)] shadow-[0_0_0_1px_var(--ds-gray-alpha-400)] !leading-[1.7em] text-xs py-0 h-5 px-1 min-w-5 min-h-5 ml-0.5 inline-flex items-center justify-center rounded" data-geist-kbd="" data-version="v1"><span>⌘K</span></kbd></button>
</div>
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Shown with 133 long blocks (scripts, styles, long tags) folded into a marker that says how many characters they hide; line breaks added before block tags because the source is minified; the pane stops after the first 200 words; the page is 257 KB.
Reading view the text a plain-fetch client can extract
title: Next.js by Vercel - The React Framework
The React Framework for the Web
Latest The framework for building agents Frameworks Svelte Nuxt Nitro SDKs AI SDK Chat SDK Flags SDK Workflow SDK Other Turborepo shadcn/ui SWR just-bash deepsec Docs Learn Showcase Blog Templates Deploy Search…⌘K Ask AI Ask AI Search…⌘K Docs Learn Showcase Blog Templates Deploy GitHub Vercel OSS Latest eve Frameworks Svelte Nuxt Nitro SDKs AI SDK Chat SDK Flags SDK Workflow SDK Other Turborepo shadcn/ui SWR just-bash deepsec Select a display theme: system light dark The React Framework for the Web Used by the world's largest companies, Next.js enables you to create high-quality web applications with the power of React components. $ npx create-next-app@latestnpx create-next-app@latest Everything you need to build great products on the web Built-in Optimizations→Automatic Image, Font, and Script Optimizations for improved UX and Core Web Vitals. Dynamic HTML Streaming→Instantly stream UI from the server, integrated with the App Router and React Suspense. React Server Components→Add components without sending additional client-side JavaScript. Built on the latest React features. Data Fetching→Make your React component async and await your data. Next.js supports both server and client data fetching. CSS Support→Style your application with your favorite tools, including support for CSS Modules, Tailwind CSS, and popular community libraries. Client and Server Rendering→Flexible
401 more words follow in the initial HTML.
| Check | Result | Detail |
|---|---|---|
| H1 in the initial HTML | Found one H1 | First H1: The React Framework for the Web |
| First 200 words in the initial HTML | Found 200 of 200 words | The initial HTML carries 601 words of visible text; the first 200 are marked in the left pane. |
| llms.txt present and linked | Found present and linked | 14592 bytes, 63 links. Structure grade A (6 of 6). The home page links it, which is how agents reached it in Ora's lab. |
| Markdown on request | Found text/markdown | Accept: text/markdown returned 200 with text/markdown; charset=utf-8. Vary: Accept is set. |
| Status of a made-up path | Found 404 | /agent-ready-html-missing-path-check returned 404: a real status code for a missing page. |
| JSON-LD types | Found ContactPoint, Organization, PostalAddress, SoftwareApplication and 1 more | 5 schema.org types in JSON-LD blocks on the home page: ContactPoint, Organization, PostalAddress, SoftwareApplication, WebSite. |
| OpenAPI link | Found linked | The home page links an OpenAPI file. 97 percent of openapi.json fetches in Ora's lab arrived through a link. |
Run the full check
The viewer read one page with four requests. The full check we recommend next is Ora's scan. Its Access layer runs 42 checks worth 30 of its 100 points, among them content without JavaScript, bot detection, llms.txt, markdown on request, JSON-LD and the sitemap (Ora's check catalogue, contract 1.38.0, read 5 November 2026). Open Ora's report for nextjs.org.
Limits: Ora reads public URLs only, says two runs of one scan land within a couple of points without publishing repeat-scan data, and keeps the product that fixes what it finds behind a waitlist. Cloudflare's scanner at isitagentready.com is a quick free alternative, and Mintlify's score covers documentation.
What the viewer does
It sends four plain GET requests with the user agent Mozilla/5.0 (compatible; agent-readiness-crawl/1.0): the URL itself, the same URL with Accept: text/markdown, /llms.txt on the same host, and a made-up path at the root. It runs no JavaScript. The left pane is the first bytes of the HTML as text, with long scripts and styles folded into a marker that says how many characters they hide. The H1 and the first 200 words of visible text are marked in both panes. The flags under the panes say what the four responses added up to.
Limits
- Ten seconds for all four requests together, 1.5 MB read from the home page, at most five redirects, each one checked again.
- http and https only, default ports only. Private, local and internal addresses and names are refused.
- Ten runs per address per minute. The counter lives in memory on the edge function, so it is per instance rather than global. Past ten you get a 429 with a Retry-After header.
- Results are cached for 24 hours by the response headers. Nothing is written to a database: the viewer keeps the first 200 words and the extracted fields for the length of the request and keeps no page body beyond that.
What it does not tell you
A plain fetch from this server is not a real agent. Bot protection weighs the source address more than the user agent, so a page that answers 200 here can still refuse an agent, and the reverse. Ora's lab found (2026-10-19) that returning 403 to agent user agents and hiding the answer in JavaScript were the only two of 19 configurations that stopped retrieval; the viewer can see the second, and can only hint at the first. The initial HTML reference covers both. The server logs and the published crawler address ranges settle the first.
The seven flags
- H1 in the initial HTML
- Whether the HTML the server sends already contains an H1. It is the cheapest sign that the page does not depend on scripts to say what it is.
- First 200 words in the initial HTML
- Whether at least 200 words of visible text arrive in the initial HTML. Under 40 words with an app root element is flagged as a JavaScript shell.
- llms.txt present and linked
- Whether /llms.txt answers with a plain-text file, whether the home page links it (an anchor, a link element or a Link header), and the structure grade the index uses.
- Markdown on request
- Whether a request with Accept: text/markdown comes back as text/markdown. Cloudflare Radar found 3.9 percent of scanned top sites passing this at its April 2026 launch.
- Status of a made-up path
- Whether a path that should not exist returns 404 or 410. A 200 is a soft 404 and reads as a live page.
- JSON-LD types
- The schema.org types found in JSON-LD blocks on the page. Ora's lab found JSON-LD made no difference when the answer was already in the HTML.
- OpenAPI link
- Whether the page links an OpenAPI file, by an anchor or a service-desc link relation. It matters only for a site that ships an API.
Sources
- Ora: AgentReady launch post (Ora's lab findings) https://ora.ai/blog/agentready-launch, read 4 November 2026
- Ora check catalogue, contract 1.38.0 (132 checks, 42 in the Access layer) https://ora.ai/api/checks, read 5 November 2026
- Ora home page (the fixing product is behind a waitlist) https://ora.ai/, read 5 November 2026
- Ora: Introducing Deep Scan (repeat scans) https://ora.ai/blog/introducing-deep-scan, read 5 November 2026
- Ora llms.txt (public URLs only) https://ora.ai/llms.txt, read 5 November 2026
- Vercel: Make your site readable by AI agents https://vercel.com/kb/guide/make-your-site-readable-by-ai-agents, read 4 November 2026
- llms.txt proposal (llmstxt.org) https://llmstxt.org/, read 4 November 2026
Last reviewed 5 November 2026