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: 6 of 7 checks found.
Initial HTML what a plain fetch receives
<!DOCTYPE html>
<html lang="en" class="font-stk-bureau-sans">
<head>
[... 2 more head elements folded ...]
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
[... 8 more head elements folded ...]
<title>Cloudflare Workers - Global Serverless Functions Platform
</title>
[... 1 more head element folded ...]
<meta name="description" content="Deploy serverless functions globally in seconds. No cold starts, 330+ cities, infinite concurrency, and pay only for CPU time. Support for JavaScript, TypeScript, Python, and Rust.">
[... 1 more head element folded ...]
<meta name="generator" content="Astro v6.3.7">
<link rel="canonical" href="https://www.cloudflare.com/products/workers/">
<link rel="alternate" hreflang="x-default" href="https://www.cloudflare.com/products/workers/">
<link rel="alternate" hreflang="es-es" href="https://www.cloudflare.com/es-es/products/workers/">
<link rel="alternate" hreflang="fr-fr" href="https://www.cloudflare.com/fr-fr/products/workers/">
<link rel="alternate" hreflang="de-de" href="https://www.cloudflare.com/de-de/products/workers/">
<link rel="alternate" hreflang="it-it" href="https://www.cloudflare.com/it-it/products/workers/">
<link rel="alternate" hreflang="pt-br" href="https://www.cloudflare.com/pt-br/products/workers/">
<link rel="alternate" hreflang="zh-cn" href="https://www.cloudflare.com/zh-cn/products/workers/">
<link rel="alternate" hreflang="ja-jp" href="https://www.cloudflare.com/ja-jp/products/workers/">
<link rel="alternate" hreflang="ko-kr" href="https://www.cloudflare.com/ko-kr/products/workers/">
<link rel="alternate" hreflang="zh-tw" href="https://www.cloudflare.com/zh-tw/products/workers/">
[... 14 more head elements folded ...]
<link rel="alternate" type="text/markdown" href="/products/workers/.md">
[... 19 more head elements folded ...]
</head>
<body class="relative min-h-svh w-full">
<div id="background-lines" class="animate-in fade-in pointer-events-none absolute inset-0 -z-10 hidden overflow-hidden transition-opacity delay-100 duration-2000 ease-out md:block" aria-hidden="true">
<div class="bg-background-100 absolute top-0 left-1/2 z-10 h-full w-[1200px] -translate-x-1/2">
<div class="absolute top-0 left-0 h-full w-px" style="background-image:linear-gradient(to bottom, var(--color-border-100) 50%, transparent 50%);background-size:1px 32px;background-repeat:repeat-y">
</div>
<div class="absolute top-0 right-0 h-full w-px" style="background-image:linear-gradient(to bottom, var(--color-border-100) 50%, transparent 50%);background-size:1px 32px;background-repeat:repeat-y">
</div>
</div>
<div class="absolute top-0 left-1/2 h-full w-[1480px] -translate-x-1/2">
<svg class="pointer-events-none absolute top-0 left-0 z-0 h-full w-full" data-testid="rf__background" aria-hidden="true" style="stroke-dasharray:none;stroke-dashoffset:0">[... 359 characters folded ...]
</svg>
<div class="absolute top-0 left-0 h-full w-px" style="background-image:linear-gradient(to bottom, var(--color-border-100) 50%, transparent 50%);background-size:1px 32px;background-repeat:repeat-y">
</div>
<div class="absolute top-0 right-0 h-full w-px" style="background-image:linear-gradient(to bottom, var(--color-border-100) 50%, transparent 50%);background-size:1px 32px;background-repeat:repeat-y">
</div>
</div>
</div>
<div data-site-navigation-shell>
<header class="pointer-events-none absolute top-0 right-0 left-0 z-50 mx-auto w-full transition-colors duration-200 ease-out hover:z-50 md:fixed md:border-b-0 bg-background-100 border-b md:bg-background-100 2xl:bg-transp [... 125 characters folded ...]>
<div aria-hidden class="pointer-events-none fixed inset-x-0 top-0 z-40 md:hidden" data-ios-status-bar-backdrop>
</div>
<div class="relative z-10 mx-auto flex h-[54px] w-full max-w-full items-center justify-between rounded-t-2xl px-2 max-[1120px]:grid-cols-[auto_minmax(0,1fr)_auto]! md:grid md:h-[72px] md:max-w-[1480px] md:grid-cols-[auto [... 165 characters folded ...]>
<div class="ml-1 flex items-center md:ml-0 md:justify-self-start"> <a id="nav-logo-button" class="pointer-events-auto -ml-4 flex cursor-pointer items-center rounded-md border-none bg-transparent p-4 transition-all duration-200 ease-out hover:opacity-80 md:justify-self-start" href="/" aria-label="Cloudflare logo" data-locale-prefix>
<svg xmlns="http://www.w3.org/2000/svg" width="66" height="30" viewBox="0 0 341 156" fill="none" class="text-accent-100 h-[26px] w-[57px] shrink-0 transition-colors duration-200 ease-out" id="nav-logo-icon">[... 2,659 characters folded ...]
</svg>
<div class="text-foreground-100 -mb-1 ml-3 hidden flex-col items-start justify-start transition-colors duration-200 ease-out lg:flex" id="nav-logo-text">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 719 59" fill="none" class="h-[12px] w-auto text-inherit" aria-label="Cloudflare wordmark" role="img">[... 2,385 characters folded ...]
</svg>
</div> </a>
<script type="module">[... 941 characters folded ...]
</script>
<script type="module">globalThis.process??={};globalThis.process.env??={};
</script>
</div>
<div class="hidden justify-start will-change-transform md:flex md:items-center lg:justify-center" data-nav-scroll-tabs>
<style>astro-island,astro-slot,astro-static-slot{display:contents}
</style>
<script>[... 316 characters folded ...]
</script>
<script>[... 4,403 characters folded ...]
</script><astro-island uid="Z2igjHo" prefix="r72" component-url="/_astro/_container.aXWWVOTT.js" component-export="NavigationContainer" renderer-url="/_astro/client.BobvjJnu.js" props="{"variant":[0,"secondary" [... 34151 characters folded ...]>
<div id="nav-container" class="pointer-events-auto relative z-20 min-w-0 text-foreground-100 dark:text-light-foreground">
<div class="hidden h-[72px] w-full min-w-0 items-center justify-center md:flex md:pl-0">
<nav class="keyframe-container relative font-sans" style="opacity:0" aria-label="Main navigation">
<div class="relative flex text-inherit items-center justify-between px-4 sm:px-6 lg:px-8">
<div id="header-navigation" class="relative hidden h-full md:flex" style="opacity:0">
<div class="absolute top-0 box-border h-full rounded-md border border-border-100 dark:border-border-100 bg-border-100/10 dark:bg-border-100/50 opacity-0 transition-all duration-300 ease-out">
</div><a href="/products/" data-nav="products" class="relative z-10 flex items-center rounded-md py-1.5 px-3 font-medium text-inherit transition-all duration-200 ease-out hover:opacity-80" aria-expanded="false" aria-haspopup="true" data-astro-prefetch="hover" style="opacity:1;filter:none">Products
<svg viewBox="0 0 20 20" class="inline-block h-4 w-auto transition-opacity duration-200 ease-out shrink-0 text-inherit opacity-30 ml-1.5 mr-[-3px]" aria-hidden="true"><use href="/icons.svg#chevronGroup"></use>
</svg></a><a href="/solutions/" data-nav="solutions" class="relative z-10 flex items-center rounded-md py-1.5 px-3 font-medium text-inherit transition-all duration-200 ease-out hover:opacity-80" aria-expanded="false" aria-haspopup="true" data-astro-prefetch="hover" style="opacity:1;filter:none">Solutions
<svg viewBox="0 0 20 20" class="inline-block h-4 w-auto transition-opacity duration-200 ease-out shrink-0 text-inherit opacity-30 ml-1.5 mr-[-3px]" aria-hidden="true"><use href="/icons.svg#chevronGroup"></use>
</svg></a><a href="/resource-hub/" data-nav="resources" class="relative z-10 flex items-center rounded-md py-1.5 px-3 font-medium text-inherit transition-all duration-200 ease-out hover:opacity-80" aria-expanded="false" aria-haspopup="true" data-astro-prefetch="hover" style="opacity:1;filter:none">Resources
<svg viewBox="0 0 20 20" class="inline-block h-4 w-auto transition-opacity duration-200 ease-out shrink-0 text-inherit opacity-30 ml-1.5 mr-[-3px]" aria-hidden="true"><use href="/icons.svg#chevronGroup"></use>
</svg></a><a href="/plans/" data-nav="pricing" class="text-inherit relative flex items-center rounded-md px-3 py-1.5 font-medium transition-all duration-200 ease-out hover:opacity-80" data-astro-prefetch="hover" style="opacity:1;filter:none">Pricing</a>
</div>
</div>
</nav>
</div>
</div><!--astro:end--></astro-island>
</div>
<div class="flex items-center justify-end gap-2 md:justify-self-end">
<div class="hidden will-change-transform md:flex md:items-center md:gap-1" data-nav-scroll-utility>
<div id="nav-action-buttons" class="pointer-events-none flex items-center justify-end gap-1 transition-[filter] duration-200 ease-out"> <a href="https://dash.cloudflare.com/login" data-slot="button" class="relative isolate shrink-0 origin-center items-center justify-center gap-2 whitespace-nowrap border font-medium backdrop-blur-md transition-[scale,tran [... 1574 characters folded ...]>Login</a> <a href="https://dash.cloudflare.com/" data-slot="button" class="relative isolate shrink-0 origin-center items-center justify-center gap-2 whitespace-nowrap border font-medium backdrop-blur-md transition-[scale,translate [... 1568 characters folded ...]>
Dashboard
</a> <a href="/resource/contact-enterprise-sales/" data-slot="button" class="relative isolate shrink-0 origin-center items-center justify-center gap-2 whitespace-nowrap border font-medium backdrop-blur-md transition-[scale,tr [... 1565 characters folded ...]>Contact sales</a> <button data-slot="button" class="relative isolate shrink-0 origin-center items-center justify-center gap-2 whitespace-nowrap border font-medium backdrop-blur-md transition-[scale,translate] duration-[0.16s] ease-[cubic- [... 1581 characters folded ...]>
<svg viewBox="0 0 24 24" width="24" height="24" stroke="currentColor" stroke-width="2" fill="none" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true" class="size-4"><path d="m21 21-6-6m2-5a7 7 0 1 1-14 0 7 7 0 0 1 14 0Z"></path>
</svg> </button>
</div>
</div>
<div class="pointer-events-none flex shrink-0 items-center justify-end gap-1" data-nav-sticky-actions> <a href="https://dash.cloudflare.com/sign-up" data-slot="button" class="relative isolate shrink-0 origin-center items-center justify-center gap-2 whitespace-nowrap border font-medium backdrop-blur-md transition-[scale,tr [... 1533 characters folded ...]>Start building</a> <a href="https://dash.cloudflare.com/" data-slot="button" class="relative isolate shrink-0 origin-center items-center justify-center gap-2 whitespace-nowrap border font-medium backdrop-blur-md transition-[scale,translate [... 1519 characters folded ...]>
Dashboard
</a> <astro-island uid="a8aXg" prefix="r76" component-url="/_astro/_trigger.DqDLzW-p.js" component-export="MobileTrigger" renderer-url="/_astro/client.BobvjJnu.js" props="{"navigation":[0,{"localePrefix":[ [... 34162 characters folded ...]>
<div class="md:hidden" style="opacity:1;transform:none"><a href="https://dash.cloudflare.com/login" data-slot="button" class="relative isolate inline-flex shrink-0 origin-center items-center justify-center whitespace-nowrap rounded-full border backdrop-blur-md transition-[sca [... 1460 characters folded ...]>Login</a>
</div>
<div class="md:hidden" style="opacity:1;transform:none"><button data-slot="button" class="relative isolate shrink-0 origin-center gap-2 whitespace-nowrap border font-medium backdrop-blur-md transition-[scale,translate] duration-[0.16s] ease-[cubic-bezier(0.25,0.46,0.45,0.94)] [... 1503 characters folded ...]>
<svg viewBox="0 0 24 24" width="24" height="24" stroke="currentColor" stroke-width="2" fill="none" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true" class="size-6"><path d="m21 21-6-6m2-5a7 7 0 1 1-14 0 7 7 0 0 1 14 0Z"></path>
</svg></button>
</div><button data-slot="button" class="relative isolate shrink-0 origin-center gap-2 whitespace-nowrap border font-medium backdrop-blur-md transition-[scale,translate] duration-[0.16s] ease-[cubic-bezier(0.25,0.46,0.45,0.94)] [... 1467 characters folded ...]><span class="t-icon-swap size-6" data-state="a" aria-hidden="true"><span class="t-icon inline-flex items-center justify-center" data-icon="a">
<svg viewBox="0 0 256 256" class="inline-block shrink-0 text-foreground-100 size-6" aria-hidden="true"><use href="/icons.svg#list"></use>
</svg></span><span class="t-icon inline-flex items-center justify-center" data-icon="b">
<svg viewBox="0 0 16 17" class="inline-block shrink-0 text-foreground-100 size-6" aria-hidden="true"><use href="/icons.svg#x"></use>
</svg></span></span></button><!--astro:end--></astro-island>
</div>
</div>
</div>
</header>
</div>
<script>[... 4,434 characters folded ...]
</script>
<main id="main-content" class="relative w-full max-w-full overflow-x-clip" tabindex="-1">
<div class="gap-section flex flex-col">
<div class="product-page-accent-buttons-light-text contents">
<div data-product-section="hero" class="contents">
<section class="bg-background-100 relative z-10" data-cms-path="products.workers.sections.hero" data-astro-cid-o2fpbpr7>
<div class="bg-background-100 h-13 w-full md:h-20" data-astro-cid-o2fpbpr7>
</div>
<div class="relative h-full w-full" data-astro-cid-o2fpbpr7>
<div class="px-section relative flex min-h-[520px] items-center justify-center overflow-hidden border-y pt-[40%] pb-12 md:min-h-[600px] md:pt-[10%] md:pb-0" data-astro-cid-o2fpbpr7>
<script>[... 130 characters folded ...]
</script><astro-island uid="Z2vmua6" prefix="r200" component-url="/_astro/index.lutVuxoH.js" component-export="Dots" renderer-url="/_astro/client.BobvjJnu.js" props="{"className":[0,"mask-b-from-0"],"data [... 136 characters folded ...]>
<svg class="pointer-events-none absolute top-0 left-0 z-0 h-full w-full mask-b-from-0" data-testid="rf__background" aria-hidden="true" style="stroke-dasharray:none;stroke-dashoffset:0">[... 359 characters folded ...]
</svg><!--astro:end--></astro-island> <astro-island uid="ZnwnmV" prefix="r201" component-url="/_astro/diagram._06MX_Ei.js" component-export="Diagram" renderer-url="/_astro/client.BobvjJnu.js" props="{"tabNodes":[1,[[0,{"name":[0,"wor [... 3726 characters folded ...]>
<div class="flex min-w-0 flex-col items-center justify-center absolute pointer-events-none inset-0 md:-translate-y-[5%] max-w-screen mx-auto lg:translate-y-[0%] z-10 h-full w-full product-diagram md:mask-x-from-50% mask-b-from-60%">
<div class="relative h-full w-full">
<div class="relative flex w-full min-h-[400px] flex-col font-mono max-md:min-h-[400px] md:h-full overflow-x-auto">
<div class="flex min-w-full justify-center max-md:min-h-[400px] max-md:flex-none md:min-h-0 md:flex-1 max-md:w-full md:w-max">
<div class="relative h-full min-h-[400px] w-full shrink-0 zoom-out-30 max-md:h-auto md:zoom-out-0" style="width:100%" role="img" aria-label="workers architecture diagram">
<div data-testid="rf__wrapper" data-variant="product" style="width:100%;height:100%;overflow:hidden;position:relative;z-index:0" class="react-flow relative z-0 transition-opacity duration-200 ease-out opacity-100 light" role="application">
<div class="react-flow__renderer" style="position:absolute;width:100%;height:100%;top:0;left:0">
<div class="react-flow__pane draggable" style="position:absolute;width:100%;height:100%;top:0;left:0">
<div class="react-flow__viewport xyflow__viewport react-flow__container" style="transform:translate(0px,0px) scale(1)">
<div class="react-flow__edges">
Shown with 217 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 740 KB.
Reading view the text a plain-fetch client can extract
title: Cloudflare Workers - Global Serverless Functions Platform
Deploy serverless functions globally in seconds
Products Solutions Resources Pricing Login Dashboard Contact sales Start building Dashboard Login React Flow Press enter or space to select a node. You can then use the arrow keys to move the node around. Press delete to remove it and escape to cancel. Press enter or space to select an edge. You can then press delete to remove it or escape to cancel. Deploy serverless functions globally in seconds Cloudflare Workers are fast, elastic, and serverless functions that scale automatically from zero to millions of requests. Start building for free View docs Only pay for what you use Pay only for execution time ( CPU time ), not idle time spent waiting on I/O. Near your users, or your data Deploy once, run in Cloudflare's 335+ cities by default, or use Smart Placement to run near your data, to minimize end-to-end latency. No cold starts Don't keep users waiting, or spend your time on prewarming rube-goldberg machines. Infinite concurrency without the markup No need to pay for pre-provisioned concurrency. Just scale up based on demand on your big launch days, no matter how many concurrent users you get. First-class local development Workers allows you to fully test your changes locally
1031 more words follow in the initial HTML.
| Check | Result | Detail |
|---|---|---|
| H1 in the initial HTML | Found 2 H1 elements | First H1: Deploy serverless functions globally in seconds |
| First 200 words in the initial HTML | Found 200 of 200 words | The initial HTML carries 1231 words of visible text; the first 200 are marked in the left pane. |
| llms.txt present and linked | Found present and linked | 3314 bytes, 11 links. Structure grade B (5 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 | Missing 200 (soft 404) | /agent-ready-html-missing-path-check returned 200. A missing page that answers 200 looks like a live page to an agent. |
| JSON-LD types | Found Organization, SearchAction, WebPage, WebSite | 4 schema.org types in JSON-LD blocks on the home page: Organization, SearchAction, WebPage, 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 workers.dev.
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