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.

GET https://agentreadyhtml.com/ answered 200 with text/html, 74 KB, read 9 November 2026, 14:06 UTC.

Permalink: /viewer/?url=https://agentreadyhtml.com/

The page answers a plain fetch: 7 of 7 checks found.

Initial HTML what a plain fetch receives

<!doctype html>
<html lang="en" data-press="two-pane">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Agent Ready HTML: what agents read when they fetch a page</title>
<meta name="description" content="Paste a URL and see the initial HTML an agent receives, with the H1 and first 200 words marked, plus llms.txt, markdown, status codes and JSON-LD checks.">
<link rel="canonical" href="https://agentreadyhtml.com/">
[... 12 more head elements folded ...]
<link rel="ai-catalog" href="/.well-known/ai-catalog.json">
<link rel="service-desc" type="application/vnd.oai.openapi+json;version=3.1" href="/openapi.json">
[... 3 more head elements folded ...]
<link rel="alternate" type="text/markdown" href="/index.md">
[... 4 more head elements folded ...]
<link rel="alternate" type="application/rss+xml" title="Agent Ready HTML" href="/feed.xml">
<link rel="ard" href="/.well-known/ard.json">
[... 1 more head element folded ...]
</head>
<body>
<a class="skip" href="#main">Skip to main content</a>
<header class="site-head"><div class="wrap"><a class="brand" href="/">Agent Ready HTML</a><nav class="nav" aria-label="Main"><a href="/viewer/">Viewer</a><a href="/llms-txt-index/">llms.txt Index</a><a href="/platforms/">Platforms</a><a href="/vendors/">Vendors</a><a href="/guides/">Guides</a><a href="/data/">Data</a><a href="/method/">Method</a></nav></div></header>
<main id="main"><div class="wrap">

<div class="head">
<h1>See your page the way an agent reads it</h1>
<div class="in-short"><p class="label">In short</p><p data-in-short>The viewer fetches a page without running JavaScript and shows the initial HTML beside what a reader can extract from it. Flags mark the H1, the first 200 words, llms.txt, markdown on request, the status of a missing path and JSON-LD. The crawl numbers below are dated 4 November 2026.</p></div>

<p class="edition-line">Crawl edition 2026-11-04, Ora reads 2026-11-05, page updated 2026-11-05. <a href="/method/">How the viewer, the index and the scores work</a>.</p>
</div>

<div class="lead"><form class="viewer-form" action="/viewer/" method="get" id="home-viewer">
<label for="home-viewer-url">URL to read as a plain-fetch client</label>
<input type="url" id="home-viewer-url" name="url" value="https://www.wikipedia.org/" inputmode="url" autocomplete="off" spellcheck="false" required>
<button type="submit">Fetch</button>
</form>
<p class="viewer-note">Pre-loaded with www.wikipedia.org, read 4 November 2026. Type any public URL to run your own: four plain requests, no JavaScript, ten seconds.</p>
<!--viewer-result--><div class="vr" data-state="ok">
<p class="vr-meta">GET https://www.wikipedia.org/ answered 200 with text/html, 120 KB, read 4 November 2026, 20:18 UTC.</p>
<p class="vr-meta">Permalink: <a href="/viewer/?url=https%3A%2F%2Fwww.wikipedia.org%2F">/viewer/?url=https://www.wikipedia.org/</a></p>
<p class="vr-headline">The page answers a plain fetch: 3 of 6 checks found.</p>
<div class="panes">
<div class="pane raw">
<p class="pane-h"><strong>Initial HTML</strong> <span>what a plain fetch receives</span></p>
<pre class="raw-lines" role="region" aria-label="Initial HTML as text, numbered lines" tabindex="0"><code class="language-html"><span class="l">&lt;!DOCTYPE html&gt;
</span><span class="l">&lt;html lang=&quot;en&quot; class=&quot;no-js&quot;&gt;
</span><span class="l">&lt;head&gt;
</span><span class="l">&lt;meta charset=&quot;utf-8&quot;&gt;
</span><span class="l">&lt;title&gt;Wikipedia&lt;/title&gt;
</span><span class="l">&lt;meta name=&quot;description&quot; content=&quot;Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.&quot;&gt;
</span><span class="l">[... 1 more head element folded ...]
</span><span class="l">&lt;meta name=&quot;viewport&quot; content=&quot;initial-scale=1,user-scalable=yes&quot;&gt;
</span><span class="l">[... 12 more head elements folded ...]
</span><span class="l">&lt;/head&gt;
</span><span class="l">&lt;body id=&quot;www-wikipedia-org&quot;&gt;
</span><span class="l">&lt;main&gt;
</span><span class="l">&lt;div class=&quot;central-textlogo&quot;&gt;
</span><span class="l">&lt;img class=&quot;central-featured-logo&quot; src=&quot;portal/wikipedia.org/assets/img/Wikipedia-logo-v2.png&quot; srcset=&quot;portal/wikipedia.org/assets/img/Wikipedia-logo-v2@2x.png 2x&quot; width=&quot;200&quot; height=&quot;183&quot; alt&gt;
</span><span class="l">&lt;h1 class=&quot;central-textlogo-wrapper&quot;&gt;
</span><span class="l">&lt;span class=&quot;central-textlogo__image sprite svg-Wikipedia_wordmark&quot;&gt;
</span><span class="l"><mark class="h1 w">Wikipedia</mark>
</span><span class="l">&lt;/span&gt;
</span><span class="l">&lt;strong class=&quot;jsl10n localized-slogan&quot; data-jsl10n=&quot;portal.slogan&quot;&gt;<mark class="h1 w">The Free Encyclopedia</mark>&lt;/strong&gt;
</span><span class="l">&lt;/h1&gt;
</span><span class="l">&lt;/div&gt;
</span><span class="l">&lt;nav data-jsl10n=&quot;top-ten-nav-label&quot; aria-label=&quot;Top languages&quot; class=&quot;central-featured&quot; data-el-section=&quot;primary links&quot;&gt;
</span><span class="l">&lt;!-- #1. en.wikipedia.org - 1,376,067,000 views/day --&gt;
</span><span class="l">&lt;div class=&quot;central-featured-lang lang1&quot; lang=&quot;en&quot; dir=&quot;ltr&quot;&gt;
</span><span class="l">

Shown with 10 long blocks (scripts, styles, long tags) folded into a marker that says how many characters they hide; the pane stops after the first 200 words; the page is 74 KB.

Reading view the text a plain-fetch client can extract

title: Agent Ready HTML: what agents read when they fetch a page

See your page the way an agent reads it

Skip to main content Agent Ready HTML Viewer llms.txt Index Platforms Vendors Guides Data Method See your page the way an agent reads it In short The viewer fetches a page without running JavaScript and shows the initial HTML beside what a reader can extract from it. Flags mark the H1, the first 200 words, llms.txt, markdown on request, the status of a missing path and JSON-LD. The crawl numbers below are dated 4 November 2026. Crawl edition 2026-11-04, Ora reads 2026-11-05, page updated 2026-11-05. How the viewer, the index and the scores work . URL to read as a plain-fetch client Fetch Pre-loaded with www.wikipedia.org, read 4 November 2026. Type any public URL to run your own: four plain requests, no JavaScript, ten seconds. GET https://www.wikipedia.org/ answered 200 with text/html, 120 KB, read 4 November 2026, 20:18 UTC. Permalink: /viewer/?url=https://www.wikipedia.org/ The page answers a plain fetch: 3 of 6 checks found. Initial HTML what a plain fetch receives <!DOCTYPE html> <html lang="en" class="no-js"> <head> <meta charset="utf-8"> <title>Wikipedia</title> <meta name="description" content="Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation."> [... 1 more head element folded ...] <meta name="viewport" content="initial-scale=1,user-scalable=yes">

2093 more words follow in the initial HTML.

7 found, 0 missing, 0 notes, from 7 checks run

H1Found
200 wordsFound
llms.txtFound
MarkdownFound
Missing pathFound
JSON-LDFound
OpenAPIFound

What a plain fetch found on agentreadyhtml.com
Check	Result	Detail
H1 in the initial HTML	Found one H1	First H1: See your page the way an agent reads it
First 200 words in the initial HTML	Found 200 of 200 words	The initial HTML carries 2293 words of visible text; the first 200 are marked in the left pane.
llms.txt present and linked	Found present and linked	71137 bytes, 278 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 Organization, WebSite	2 schema.org types in JSON-LD blocks on the home page: Organization, 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 agentreadyhtml.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