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_GSLd47PABZQTJL7mt9ux5dSBW9yD" lang="en" class="jCT9pW_variable _7Q4Q3q_variable g0zATW_variable scroll-smooth">
<head>
<meta charSet="utf-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
[... 25 more head elements folded ...]
<title>Upstash: Serverless Data Platform - Redis, Vector, Search
</title>
<meta name="description" content="Serverless Redis, Vector and Search databases with low latency and pay-as-you-go pricing. Upstash is the data platform for modern and AI applications — create a Redis database in seconds."/>
[... 2 more head elements folded ...]
<link rel="canonical" href="https://upstash.com"/>
[... 17 more head elements folded ...]
</head>
<body class="min-h-screen pt-[106px] antialiased md:pt-[116px] text-sm text-text md:text-base bg-bg">
<div hidden=""><!--$--><!--/$-->
</div><blockquote data-context7-ask="true" aria-hidden="true" class="sr-only">
<h2>Search
</h2>
<p>This site has a search endpoint: https://context7.com/api/v2/ask?siteKey=ask_4cf2adc7846aa874f833b068&query=<URL-encoded question>. It returns documentation that answers the question, with a source link for each part. No API key is needed. If nothing matches, it says so.
</p></blockquote><!--$--><!--$!--><template data-dgst=""></template><!--/$--><!--/$-->
<script type="application/ld+json">[... 2,081 characters folded ...]
</script>
<header class="fixed inset-x-0 top-0 z-50 hidden bg-transparent md:block"><a href="/blog/upstash-has-a-remote-mcp-server-now" class="group flex h-9 w-full items-center justify-center gap-1.5 border-b border-emerald-500/20 bg-emerald-50 px-4 text-[13px] leading-none text-emerald-950 transition- [... 106 characters folded ...]><span class="shrink-0 font-medium">New:</span><span class="truncate underline decoration-emerald-600/40 underline-offset-4 transition-colors group-hover:decoration-emerald-600 dark:decoration-emerald-400/40 dark:group-hover:decoration-emerald-400">Upstash has a remote MCP server<span class="hidden sm:inline"> <!-- -->— connect your coding agent to your account</span></span>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-arrow-right shrink-0 transition-transform group-hover:translate-x-0.5"><path d="M5 12l14 0"></path><path d="M13 18l6 -6"></path><path d="M13 6l6 6"></path>
</svg></a>
<div class="mx-auto max-w-screen-xl px-6 md:px-10">
<div class="flex items-center py-5 md:grid md:grid-cols-6 border-b border-b-white/5">
<div class="flex"><a href="/">
<svg role="img" height="30" viewBox="0 0 1631 472" fill="none" xmlns="http://www.w3.org/2000/svg">[... 4,570 characters folded ...]
</svg></a>
</div>
<div class="col-span-4">
<nav aria-label="Main" data-orientation="horizontal" dir="ltr" class="relative z-50 flex w-full items-center justify-center">
<div style="position:relative">
<ul data-orientation="horizontal" class="flex items-center gap-1" dir="ltr">
<li><a class="flex select-none items-center gap-0.5 rounded-full px-3 py-2 text-text-mute hover:bg-white/5 hover:text-primary-text" data-radix-collection-item="" href="/docs">Docs</a>
</li>
<li><a class="flex select-none items-center gap-0.5 rounded-full px-4 py-2 text-text-mute hover:bg-white/5 hover:text-primary-text" data-radix-collection-item="" href="/pricing/redis">Pricing</a>
</li>
<li><a class="flex select-none items-center gap-0.5 rounded-full px-4 py-2 text-text-mute hover:bg-white/5 hover:text-primary-text" data-radix-collection-item="" href="/customers">Customers</a>
</li>
<li><a class="flex select-none items-center gap-0.5 rounded-full px-4 py-2 text-text-mute hover:bg-white/5 hover:text-primary-text" data-radix-collection-item="" href="/enterprise">Enterprise</a>
</li>
<li><a class="flex select-none items-center gap-0.5 rounded-full px-3 py-2 text-text-mute hover:bg-white/5 hover:text-primary-text" data-radix-collection-item="" href="/blog">Blog</a>
</li>
<li><button id="radix-_R_195b_-trigger-radix-_R_cn95b_" data-state="closed" aria-expanded="false" aria-controls="radix-_R_195b_-content-radix-_R_cn95b_" class="group flex select-none items-center gap-0.5 rounded-full px-3 py [... 155 characters folded ...]>Company<!-- --> <span class="ml-1 flex items-center rounded-full bg-emerald-400/20 px-1.5 py-1 font-mono text-sm leading-none text-emerald-700 dark:text-primary">4</span>
<svg xmlns="http://www.w3.org/2000/svg" width="15" height="15" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-chevro [... 93 characters folded ...]><path d="M6 9l6 6l6 -6"></path>
</svg></button>
</li>
</ul>
</div>
<div class="perspective-[2000px] absolute left-20 right-0 top-full flex w-full justify-center">
</div>
</nav>
</div>
<div class="flex justify-end"><a target="_self" href="https://console.upstash.com" type="button" class="inline-flex items-center gap-2 px-4 py-2 rounded-xl font-medium transition hover:shadow-sm bg-bg-mute shadow-sm text-primary-text hover:bg-emerald-700/20 disabled:bg-white/5 disabled:text-zinc-50">Login</a>
</div>
</div>
</div>
</header>
<header class="fixed inset-x-0 top-0 z-50 md:hidden border-b border-b-white/5"><a href="/blog/upstash-has-a-remote-mcp-server-now" class="group flex h-9 w-full items-center justify-center gap-1.5 border-b border-emerald-500/20 bg-emerald-50 px-4 text-[13px] leading-none text-emerald-950 transition- [... 106 characters folded ...]><span class="shrink-0 font-medium">New:</span><span class="truncate underline decoration-emerald-600/40 underline-offset-4 transition-colors group-hover:decoration-emerald-600 dark:decoration-emerald-400/40 dark:group-hover:decoration-emerald-400">Upstash has a remote MCP server<span class="hidden sm:inline"> <!-- -->— connect your coding agent to your account</span></span>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-arrow-right shrink-0 transition-transform group-hover:translate-x-0.5"><path d="M5 12l14 0"></path><path d="M13 18l6 -6"></path><path d="M13 6l6 6"></path>
</svg></a>
<div class="mx-auto max-w-screen-xl px-6 md:px-10">
<div class="flex items-center justify-between py-4">
<div class="flex"><a href="/">
<svg role="img" height="30" viewBox="0 0 1631 472" fill="none" xmlns="http://www.w3.org/2000/svg">[... 4,570 characters folded ...]
</svg></a>
</div><button type="button" class="flex items-center justify-center p-2 opacity-70">
<svg xmlns="http://www.w3.org/2000/svg" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" fill="none" stroke="currentColor" viewBox="0 0 24 24" width="1em" height="1em" class="inline-flex shrink-0 text-3xl" role="icon">
<title>Expand menu
</title><line x1="4" y1="8" x2="20" y2="8"></line><line x1="4" y1="16" x2="20" y2="16"></line>
</svg></button>
<nav class="absolute inset-x-0 top-full z-10 mt-px flex-col p-6 bg-bg shadow-2xl hidden">
<div class="flex flex-col divide-y divide-black/5 dark:divide-white/5"><a class="flex items-center gap-2 py-4 font-display text-lg font-medium" href="/docs">Docs</a><a class="flex items-center gap-2 py-4 font-display text-lg font-medium" href="/pricing/redis">Pricing</a><a class="flex items-center gap-2 py-4 font-display text-lg font-medium" href="/customers">Customers</a><a class="flex items-center gap-2 py-4 font-display text-lg font-medium" href="/enterprise">Enterprise</a><a class="flex items-center gap-2 py-4 font-display text-lg font-medium" href="/blog">Blog</a><a class="flex items-center gap-2 py-4 font-display text-lg font-medium" href="/about">About</a><a class="flex items-center gap-2 py-4 font-display text-lg font-medium" href="/careers">Careers<span class="flex items-center rounded-full bg-emerald-300/20 px-1.5 py-1 font-mono text-sm leading-none text-primary">4</span></a><a class="flex items-center gap-2 py-4 font-display text-lg font-medium" href="/open-source">Open-Source Program</a><a class="flex items-center gap-2 py-4 font-display text-lg font-medium" href="/contact">Contact Us</a>
</div><a href="https://console.upstash.com" type="button" class="inline-flex items-center gap-2 px-4 py-2 rounded-xl font-medium transition hover:shadow-sm bg-primary text-white hover:bg-primary-text disabled:bg-white/5 disabled:text-zinc-50 my-6">Login</a>
</nav>
</div>
</div>
</header>
<main class="text-center">
<section class="relative z-0 py-16"><span aria-hidden="true" class="hidden"></span>
<div class="absolute left-1/2 top-0 -z-10 w-full -translate-x-1/2 md:top-0 h-[200px] md:h-[400px] section-glow opacity-10 pointer-events-none !top-1/2 -translate-y-1/2">
</div>
<div class="mx-auto max-w-screen-xl px-6 md:px-10">
<h1 class="tracking-tight transition font-display text-5xl font-bold leading-none md:text-[8rem] bg-gradient-to-r bg-clip-text text-transparent from-primary-text via-primary to-amber-500">Serverless <br/>Data Platform
</h1>
<p class="mt-2 text-lg md:text-2xl text-text-mute">One platform for all your data needs
</p>
<div class="mt-6 flex flex-wrap items-center justify-center gap-4" data-area="home_hero"><a href="https://console.upstash.com" target="_self" type="button" class="inline-flex items-center gap-2 py-2 rounded-xl font-medium transition hover:shadow-sm bg-primary text-white hover:bg-primary-text disabled:bg-white/5 disabled:text-zinc-50 h-11 px-5">Start for Free
<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-arrow-up-right "><path d="M17 7l-10 10"></path><path d="M8 7l9 0l0 9"></path>
</svg></a>
<div class="inline-flex"><button type="button" aria-haspopup="menu" aria-expanded="false" class="group flex h-11 items-stretch overflow-hidden rounded-lg border border-emerald-500 bg-[linear-gradient(90deg,rgba(16,185,129,0.1),rgba(234,179,8,0.1 [... 141 characters folded ...]><span class="flex items-center gap-2.5 px-4 text-base font-medium text-emerald-800 transition group-hover:bg-emerald-500/10 dark:text-emerald-400"><span class="flex items-center" aria-hidden="true"><span title="Cursor" class="flex size-7 items-center justify-center rounded-full border border-emerald-900/30 bg-white dark:border-emerald-400/30 dark:bg-zinc-900">
<svg viewBox="0 0 15 17.135" fill="currentColor" aria-hidden="true" class="size-4">[... 738 characters folded ...]
</svg></span><span title="Claude" class="flex size-7 items-center justify-center rounded-full border border-emerald-900/30 bg-white dark:border-emerald-400/30 dark:bg-zinc-900 -ml-[5px]">
<svg viewBox="0 0 16 15.96" fill="currentColor" aria-hidden="true" class="size-4">[... 1,608 characters folded ...]
</svg></span><span title="OpenAI" class="flex size-7 items-center justify-center rounded-full border border-emerald-900/30 bg-white dark:border-emerald-400/30 dark:bg-zinc-900 -ml-[5px]">
<svg viewBox="0 0 16 15.8558" fill="currentColor" aria-hidden="true" class="size-4">[... 3,175 characters folded ...]
</svg></span></span><span class="relative inline-flex items-center"><span class="inline-flex items-center transition duration-200 ease-out motion-reduce:transition-none opacity-100">Copy agent prompt</span><span aria-hidden="true" class="pointer-events-none absolute inset-0 flex items-center transition duration-200 ease-out motion-reduce:transition-none opacity-0"><span class="text-primary">Copied</span></span></span></span><span class="flex w-11 items-center justify-center border-l border-black/10 transition group-hover:bg-emerald-500/10 dark:border-white/10">
<svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.4" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-chevron-down text-emerald-800/50 transition-transform dark:text-emerald-400/60"><path d="M6 9l6 6l6 -6"></path>
</svg></span></button>
</div>
</div>
</div>
</section>
<section class="relative z-10 sm:mt-4"><span aria-hidden="true" class="hidden"></span>
<div class="mx-auto max-w-screen-xl px-6 md:px-10">
<div class="md:text-ba flex items-end justify-center md:gap-1 lg:gap-2"><button type="button" class="flex grow items-center justify-center text-center sm:grow-0 h-12 sm:px-4 xl:px-8 min-[520px]:text-[1.2em] font-display text-[1em] font-semibold leading-none lg:text-xl xl:text-2xl rounded-2xl [... 129 characters folded ...]><span class="flex items-center justify-center gap-2">
<svg width="36" height="36" viewBox="0 0 32 32" fill="none" xmlns="http://www.w3.org/2000/svg" aria-label="Upstash Redis" class="w-5 shrink-0 lg:block md:w-6 block">[... 1,138 characters folded ...]
</svg><span>Redis<!-- --> <span class="hidden text-[.9em] opacity-40 sm:inline-flex">®*</span></span></span></button><button type="button" class="flex grow items-center justify-center text-center sm:grow-0 h-12 sm:px-4 lg:h-16 xl:px-8 min-[520px]:text-[1.2em] font-display text-[1em] font-semibold leading-none text-text-mute lg:text-xl [... 111 characters folded ...]><span class="flex items-center justify-center gap-2">
<svg width="36" height="36" viewBox="0 0 32 32" fill="none" xmlns="http://www.w3.org/2000/svg" aria-label="Upstash QStash" class="hidden w-5 shrink-0 lg:block md:w-6">[... 277 characters folded ...]
</svg><span>QStash</span></span></button><button type="button" class="flex grow items-center justify-center text-center sm:grow-0 h-12 sm:px-4 lg:h-16 xl:px-8 min-[520px]:text-[1.2em] font-display text-[1em] font-semibold leading-none text-text-mute lg:text-xl [... 111 characters folded ...]><span class="flex items-center justify-center gap-2">
<svg width="36" height="36" viewBox="0 0 32 32" fill="none" xmlns="http://www.w3.org/2000/svg" class="hidden w-5 shrink-0 lg:block md:w-6">[... 178 characters folded ...]
</svg><span>Workflow</span></span></button><button type="button" class="flex grow items-center justify-center text-center sm:grow-0 h-12 sm:px-4 lg:h-16 xl:px-8 min-[520px]:text-[1.2em] font-display text-[1em] font-semibold leading-none text-text-mute lg:text-xl [... 111 characters folded ...]><span class="flex items-center justify-center gap-2">
<svg width="36" height="36" viewBox="0 0 32 32" fill="none" xmlns="http://www.w3.org/2000/svg" aria-label="Upstash Vector" class="hidden w-5 shrink-0 lg:block md:w-6">[... 384 characters folded ...]
</svg><span>Vector</span></span></button><button type="button" class="flex grow items-center justify-center text-center sm:grow-0 h-12 sm:px-4 lg:h-16 xl:px-8 min-[520px]:text-[1.2em] font-display text-[1em] font-semibold leading-none text-text-mute lg:text-xl [... 111 characters folded ...]><span class="flex items-center justify-center gap-2">
<svg width="36" height="36" viewBox="0 0 32 32" fill="none" xmlns="http://www.w3.org/2000/svg" class="hidden w-5 shrink-0 lg:block md:w-6">[... 1,968 characters folded ...]
</svg><span>Box</span></span></button><button type="button" class="flex grow items-center justify-center text-center sm:grow-0 h-12 sm:px-4 lg:h-16 xl:px-8 min-[520px]:text-[1.2em] font-display text-[1em] font-semibold leading-none text-text-mute lg:text-xl [... 111 characters folded ...]><span class="flex items-center justify-center gap-2">
<svg width="36" viewBox="0 0 28 28" fill="none" xmlns="http://www.w3.org/2000/svg" class="hidden w-5 shrink-0 lg:block md:w-6">[... 1,717 characters folded ...]
</svg><span>Blob</span></span></button>
</div>
<div data-area="home_products" data-product="redis" class="-mx-6 p-6 sm:mx-auto sm:p-8 bg-white shadow sm:rounded-4xl dark:bg-white/10">
<div class="mb-8 flex flex-col items-center gap-4 py-4">
<h2 class="text-2xl font-medium text-emerald-800 dark:text-text">Serverless Redis in the cloud with low latency and durable storage
</h2>
<div class="flex flex-col justify-center gap-3 xs:flex-row"><a href="/redis"><button type="button" class="inline-flex items-center gap-2 py-2 rounded-xl font-medium transition hover:shadow-sm bg-bg-mute shadow-sm text-primary-text hover:bg-emerald-700/20 disabled:bg-white/5 disabled:text-zinc-50 h-[42px] px-5">Explore <!-- -->Redis
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-arrow-right "><path d="M5 12l14 0"></path><path d="M13 18l6 -6"></path><path d="M13 6l6 6"></path>
</svg></button></a><a href="https://upstash.com/docs/redis" target="_blank"><button type="button" class="inline-flex items-center gap-2 py-2 rounded-xl font-medium transition hover:shadow-sm bg-emerald-800/20 dark:bg-bg-mute dark:hover:bg-emerald-800/30 text-primary-text hover:bg-emerald-800/30 disabled:bg-white/5 disabled:text-zinc-50 h-[42px] px-5">Documentation
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-notes ">[... 177 characters folded ...]
</svg></button></a><a href="https://console.upstash.com/redis" target="_blank"><button type="button" class="inline-flex items-center gap-2 py-2 rounded-xl font-medium transition hover:shadow-sm bg-primary text-white hover:bg-primary-text disabled:bg-white/5 disabled:text-zinc-50 h-[42px] px-5">Create Database
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-plus "><path d="M12 5l0 14"></path><path d="M5 12l14 0"></path>
</svg></button></a>
</div>
</div>
<div class="grid gap-2 sm:grid-cols-3 sm:place-items-center sm:gap-8">
<article class="flex flex-col gap-4 rounded-2xl p-6 text-left sm:h-full sm:p-8 bg-bg-mute dark:bg-bg">
<h3 class="font-display text-lg font-semibold leading-tight sm:text-2xl">Highly Available,<!-- --> <br class="hidden sm:block"/> <!-- -->Infinitely Scalable
</h3>
<ul class="">
<li class="flex items-start gap-2 py-px sm:py-1"><span class="shrink-0 text-primary">
Shown with 153 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 618 KB.
Reading view the text a plain-fetch client can extract
title: Upstash: Serverless Data Platform - Redis, Vector, Search
Serverless Data Platform
Search This site has a search endpoint: https://context7.com/api/v2/ask?siteKey=ask_4cf2adc7846aa874f833b068&query=<URL-encoded question>. It returns documentation that answers the question, with a source link for each part. No API key is needed. If nothing matches, it says so. New:Upstash has a remote MCP server — connect your coding agent to your account Docs Pricing Customers Enterprise Blog Company 4 Login New:Upstash has a remote MCP server — connect your coding agent to your account Docs Pricing Customers Enterprise Blog About Careers4 Open-Source Program Contact Us Login Serverless Data Platform One platform for all your data needs Start for Free Copy agent promptCopied Redis ®* QStash Workflow Vector Box Blob Serverless Redis in the cloud with low latency and durable storage Explore Redis Documentation Create Database Highly Available, Infinitely Scalable 99.99% uptime guarantee Automatic scaling to meet your demands No server management required Global Low Latency Lightning-fast response times worldwide Multi-region replication options Optimize for your users, wherever they are Persistent Redis, In-Memory Speed In-memory speed with disk-like persistence Data safety without sacrificing performance Automatic backups EXAMPLES Caching Session Management Rate Limiting Leaderboards Chat TypeScript Python import { Redis } from "@upstash/redis"; const redis = Redis.fromEnv(); const item = await redis.get("item:123"); if (item) { return
1282 more words follow in the initial HTML.
| Check | Result | Detail |
|---|---|---|
| H1 in the initial HTML | Found one H1 | First H1: Serverless Data Platform |
| First 200 words in the initial HTML | Found 200 of 200 words | The initial HTML carries 1482 words of visible text; the first 200 are marked in the left pane. |
| llms.txt present and linked | Found present and linked | 7372 bytes, 31 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 Answer, ContactPoint, FAQPage, ImageObject and 6 more | 10 schema.org types in JSON-LD blocks on the home page: Answer, ContactPoint, FAQPage, ImageObject, Offer, Organization, PostalAddress, Question, 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 upstash.com.
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