Agent Ready HTML

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://zendesk.com/ answered 200 with text/html, 884 KB, 1 redirect, read 8 November 2026, 14:05 UTC. Final URL: https://www.zendesk.com/.

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

The page answers a plain fetch: 5 of 6 checks found.

Initial HTML what a plain fetch receives

<!DOCTYPE html>
<html lang="en-US">
<head>
<meta charSet="utf-8"/>
<meta name="viewport" content="width=device-width"/>
<title>AI-Powered Customer Service Platform | Zendesk
</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/>
[... 17 more head elements folded ...]
<meta name="description" content="Move beyond deflection with AI agents that resolve issues end-to-end. Improve service quality, speed, and scale. Start your free trial."/>
<meta name="robots" content="index,follow,max-snippet:-1,max-image-preview:large,max-video-preview:-1"/>
<link rel="canonical" href="https://www.zendesk.com/"/>
[... 13 more head elements folded ...]
<link rel="alternate" hrefLang="en-AU" href="https://www.zendesk.com/au/"/>
<link rel="alternate" hrefLang="pt" href="https://www.zendesk.com.br/"/>
<link rel="alternate" hrefLang="de" href="https://www.zendesk.de/"/>
<link rel="alternate" hrefLang="en-DK" href="https://www.zendesk.com/dk/"/>
<link rel="alternate" hrefLang="es-ES" href="https://www.zendesk.es/"/>
<link rel="alternate" hrefLang="fr" href="https://www.zendesk.fr/"/>
<link rel="alternate" hrefLang="en-GB" href="https://www.zendesk.co.uk/"/>
<link rel="alternate" hrefLang="zh-HK" href="https://www.zendesk.hk/"/>
<link rel="alternate" hrefLang="it" href="https://www.zendesk.com/it/"/>
<link rel="alternate" hrefLang="en-IN" href="https://www.zendesk.com/in/"/>
<link rel="alternate" hrefLang="ja" href="https://www.zendesk.co.jp/"/>
<link rel="alternate" hrefLang="ko" href="https://www.zendesk.kr/"/>
<link rel="alternate" hrefLang="es" href="https://www.zendesk.com.mx/"/>
<link rel="alternate" hrefLang="nl" href="https://www.zendesk.nl/"/>
<link rel="alternate" hrefLang="en-SE" href="https://www.zendesk.com/se/"/>
<link rel="alternate" hrefLang="en-SG" href="https://www.zendesk.com/sg/"/>
<link rel="alternate" hrefLang="zh" href="https://www.zendesk.tw/"/>
<link rel="alternate" hrefLang="en" href="https://www.zendesk.com/"/>
<link rel="alternate" hrefLang="en-TH" href="https://www.zendesk.com/th/"/>
<link rel="alternate" hrefLang="x-default" href="https://www.zendesk.com/"/>
[... 108 more head elements folded ...]
</head>
<body>
<div id="__next">
<div>
<noscript>[... 163 characters folded ...]
</noscript>
<script id="script-page-schema" type="application/ld+json">[... 6,272 characters folded ...]
</script><a href="#main-content" class="sc-8ed9cb52-3 jijxkk">Skip to main content</a>
<div data-nav-item="global-promo-eyebrow-root" role="complementary" aria-label="top-promo-promo-1747898251" data-cookie-name="promo-1747898251" data-location="top" data-aem-id="aem.components.Promo" class="sc-c5fa0909-6 fsXSfT">
<div class="sc-c5fa0909-7 dHfWfk"><span class="Textstyle__TextRoot-sc-1qs4xfy-0 ErOlH"><strong>AI Summit 2026</strong></span> 
<p class="Textstyle__TextRoot-sc-1qs4xfy-0 ErOlH sc-c5fa0909-0 sc-c5fa0909-8 jRiBMQ eHLYuq">Join over 30,000 leaders online to hear from experts at OpenAI, Lovable, AWS and Uphold, plus see the latest AI innovations for service.
</p>
<p class="Textstyle__TextRoot-sc-1qs4xfy-0 ErOlH sc-c5fa0909-0 sc-c5fa0909-9 jRiBMQ hyuYHT">Join over 30,000 leaders online to hear from experts at OpenAI, Lovable, AWS and Uphold, plus see the latest AI innovations for service.
</p><a target="_blank" rel="noopener noreferrer" href="https://www.zendesk.com/company/events/ai-summit-2026/?utm_medium=webpromo&amp;utm_source=eyebrow&amp;utm_campaign=AISummit_26_eyebrow1_NA_2026Q3" data-interaction-type= [... 188 characters folded ...]><span class="Linkstyle__LinkText-sc-1n8u9ej-3 faVsWJ">Register now</span>
<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" focusable="false" viewBox="0 0 12 12" role="img" aria-label="(opens in a new tab)" theme="[object Object]" data-garden-id="buttons.external_icon" data-garden [... 65 characters folded ...]>[... 180 characters folded ...]
</svg></a>
</div>
<div class="sc-c5fa0909-10 dVfsRA"><button data-interaction-type="button-close" aria-label="Close" class="Linkstyle__LinkRoot-sc-1n8u9ej-6 dlFUez Buttonstyle__ButtonRoot-sc-yyucvh-2 hDfnez CloseButtonstyle__CloseButtonRoot-sc-1rr1ns5-0 fmlzFm"><span class="Linkstyle__LinkText-sc-1n8u9ej-3 faVsWJ"><span class="Buttonstyle__ButtonString-sc-yyucvh-1 ibvzvL">
<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" fill="currentColor" viewBox="0 0 32 32">[... 173 characters folded ...]
</svg></span></span></button>
</div>
</div>
<div data-nmw-id="v3-global-header-main-mobile" data-aem-id="aem.components.GlobalHeader" id="header-780805927" class="sc-93bde466-5 iQZsgX">
<div>
</div>
<nav class="sc-93bde466-2 bFWlPl">
<div class="Containerstyle__ContainerRoot-sc-j7wtnc-0 hHhIKw sc-93bde466-3 dQDRgt"><a href="/" data-interaction-type="link-primary" aria-label="Zendesk home" data-location="navigation" data-text="nav-logo" class="StyledButton-sc-qe3ace-0 StyledAnchor-sc-xshgmo-0 cbIMud eLyIGa Linkstyle__LinkRoot-sc-1n8 [... 97 characters folded ...]>
<svg xmlns="http://www.w3.org/2000/svg" width="78.4" height="56" viewBox="0 0 78.4 56" fill="currentColor" aria-hidden="true" focusable="false" class="sc-fd8482e9-0 hCbPuQ">[... 1,246 characters folded ...]
</svg></a><button class="sc-d3ef341b-16 kpIrEN">
<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" fill="currentColor" viewBox="0 0 32 32">[... 152 characters folded ...]
</svg></button>
<div class="sc-93bde466-0 iLuIxD">
<div class="sc-93bde466-1 jgPyjM"> 
</div>
<div class="sc-d3ef341b-6 gqqjgm"><a href="/demo/" data-interaction-type="button-primary" data-location="navigation" class="StyledButton-sc-qe3ace-0 StyledAnchor-sc-xshgmo-0 gmtpxB eLyIGa Linkstyle__LinkRoot-sc-1n8u9ej-6 bSzcRF Buttonstyle__ButtonRoot-sc-yyucvh-2 kFGqoW" data-garden-id="buttons.anchor" data-garden-version="8.76.2"><span class="Linkstyle__LinkText-sc-1n8u9ej-3 faVsWJ"><span class="Buttonstyle__ButtonString-sc-yyucvh-1 ibvzvL">View demo</span></span></a>
</div>
</div><button aria-label="Toggle Mobile Menu" class="sc-d3ef341b-0 emeCAG">
<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" fill="currentColor" viewBox="0 0 32 32"><path fill="currentColor" fill-rule="evenodd" d="M25 11H7V9h18zm0 6H7v-2h18zM7 23h18v-2H7z" clip-rule="evenodd"></path>
</svg></button>
</div>
</nav>
<div role="menu" class="sc-e254d12-13 hYLlPA sc-d3ef341b-1 bpHNSw">
<div class="sc-e254d12-11 LenwI">
<div data-subnav-open="false" data-mobile-menu-item="subnav" class="sc-d3ef341b-7 iuimXe"><button tabindex="0" class="sc-d3ef341b-11 fcyUzM">
<h5 class="Headingstyle__HeadingRoot-sc-6ks3it-0 eQATMY sc-d3ef341b-8 bzUkNm"> <!-- -->Platform
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16" class="carat">[... 149 characters folded ...]
</svg>
</h5></button>
<div data-is-open="false" class="sc-d3ef341b-13 ibkqJR">
<div data-category="Platform" class="sc-d3ef341b-10 dpDkpt">
<div data-category="Platform" class="sc-d3ef341b-10 cTrPCi">
<ul>
<li><a href="/platform/" data-interaction-type="link-block" data-location="navigation" class="StyledButton-sc-qe3ace-0 StyledAnchor-sc-xshgmo-0 cbIMud eLyIGa Linkstyle__LinkRoot-sc-1n8u9ej-6 fPdbCw sc-e254d12-10 jWbokr" data-garden-id="buttons.anchor" data-garden-version="8.76.2"><span class="Linkstyle__LinkIcon-sc-1n8u9ej-1 dxzdFk">
<div class="" style="width:100%;height:100%"><canvas style="vertical-align:top;width:0;height:0" autoplay=""></canvas>
</div></span><span class="Linkstyle__LinkContent-sc-1n8u9ej-0 keERcv"><span class="Linkstyle__LinkText-sc-1n8u9ej-3 faVsWJ">Zendesk Resolution Platform</span><span as="span" class="Linkstyle__LinkSubtitle-sc-1n8u9ej-5 lhZesr">Deliver faster, higher quality resolutions with the only AI-first service platform</span></span></a>
</li>
</ul>
</div>
<div data-category="Platform" class="sc-d3ef341b-10 dpDkpt">
<ul>
<li><a href="/service/ai/" data-interaction-type="link-block" data-location="navigation" class="StyledButton-sc-qe3ace-0 StyledAnchor-sc-xshgmo-0 gmtpxB eLyIGa Linkstyle__LinkRoot-sc-1n8u9ej-6 kFgxJK sc-e254d12-10 bPGpqg" data-garden-id="buttons.anchor" data-garden-version="8.76.2"><span class="Linkstyle__LinkIcon-sc-1n8u9ej-1 dxzdFk">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="currentColor" viewBox="0 0 24 24">[... 1,101 characters folded ...]
</svg></span><span class="Linkstyle__LinkContent-sc-1n8u9ej-0 keERcv"><span class="Linkstyle__LinkText-sc-1n8u9ej-3 faVsWJ">Zendesk AI</span><span as="span" class="Linkstyle__LinkSubtitle-sc-1n8u9ej-5 lhZesr">Power your service with AI that continuously improves every resolution</span></span></a>
</li>
<li><a href="/service/analytics/" data-interaction-type="link-block" data-location="navigation" class="StyledButton-sc-qe3ace-0 StyledAnchor-sc-xshgmo-0 gmtpxB eLyIGa Linkstyle__LinkRoot-sc-1n8u9ej-6 kFgxJK sc-e254d12-10 bPGpqg" data-garden-id="buttons.anchor" data-garden-version="8.76.2"><span class="Linkstyle__LinkIcon-sc-1n8u9ej-1 dxzdFk">
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">[... 199 characters folded ...]
</svg></span><span class="Linkstyle__LinkContent-sc-1n8u9ej-0 keERcv"><span class="Linkstyle__LinkText-sc-1n8u9ej-3 faVsWJ">Reporting and analytics</span><span as="span" class="Linkstyle__LinkSubtitle-sc-1n8u9ej-5 lhZesr">Turn service insights into better outcomes</span></span></a>
</li>
<li><a href="/marketplace/" data-interaction-type="link-block" data-location="navigation" class="StyledButton-sc-qe3ace-0 StyledAnchor-sc-xshgmo-0 gmtpxB eLyIGa Linkstyle__LinkRoot-sc-1n8u9ej-6 kFgxJK sc-e254d12-10 bPGpqg" data-garden-id="buttons.anchor" data-garden-version="8.76.2"><span class="Linkstyle__LinkIcon-sc-1n8u9ej-1 dxzdFk">
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">[... 155 characters folded ...]
</svg></span><span class="Linkstyle__LinkContent-sc-1n8u9ej-0 keERcv"><span class="Linkstyle__LinkText-sc-1n8u9ej-3 faVsWJ">Marketplace</span><span as="span" class="Linkstyle__LinkSubtitle-sc-1n8u9ej-5 lhZesr">Find 1,800+ apps, partners, and integrations to serve customers and employees</span></span></a>
</li>
<li><a href="/platform/#Actionsandintegrations" data-interaction-type="link-block" data-location="navigation" class="StyledButton-sc-qe3ace-0 StyledAnchor-sc-xshgmo-0 gmtpxB eLyIGa Linkstyle__LinkRoot-sc-1n8u9ej-6 kFgxJK sc-e254d12-10 bPGpqg" data-garden-id="buttons.anchor" data-garden-version="8.76.2"><span class="Linkstyle__LinkIcon-sc-1n8u9ej-1 dxzdFk">
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">[... 308 characters folded ...]
</svg></span><span class="Linkstyle__LinkContent-sc-1n8u9ej-0 keERcv"><span class="Linkstyle__LinkText-sc-1n8u9ej-3 faVsWJ">Actions and integrations</span><span as="span" class="Linkstyle__LinkSubtitle-sc-1n8u9ej-5 lhZesr">Drive resolutions across unified data and systems</span></span></a>
</li>
<li><a href="/trust-center/" data-interaction-type="link-block" data-location="navigation" class="StyledButton-sc-qe3ace-0 StyledAnchor-sc-xshgmo-0 gmtpxB eLyIGa Linkstyle__LinkRoot-sc-1n8u9ej-6 kFgxJK sc-e254d12-10 bPGpqg" data-garden-id="buttons.anchor" data-garden-version="8.76.2"><span class="Linkstyle__LinkIcon-sc-1n8u9ej-1 dxzdFk">
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">[... 139 characters folded ...]
</svg></span><span class="Linkstyle__LinkContent-sc-1n8u9ej-0 keERcv"><span class="Linkstyle__LinkText-sc-1n8u9ej-3 faVsWJ">Security and Trust</span><span as="span" class="Linkstyle__LinkSubtitle-sc-1n8u9ej-5 lhZesr">Deploy trusted service with enterprise-grade security and AI governance</span></span></a>
</li>
</ul>
</div>
</div>
</div><button tabindex="0" class="sc-d3ef341b-11 fcyUzM">
<h5 class="Headingstyle__HeadingRoot-sc-6ks3it-0 eQATMY sc-d3ef341b-8 bzUkNm"> <!-- -->Products
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16" class="carat">[... 149 characters folded ...]
</svg>
</h5></button>
<div data-is-open="false" class="sc-d3ef341b-13 ibkqJR">
<div data-category="Products" class="sc-d3ef341b-10 dpDkpt">
<div data-category="Products" class="sc-d3ef341b-10 cTrPCi">
<ul>
<li><a href="/service/" data-interaction-type="link-block" data-location="navigation" class="StyledButton-sc-qe3ace-0 StyledAnchor-sc-xshgmo-0 cbIMud eLyIGa Linkstyle__LinkRoot-sc-1n8u9ej-6 fPdbCw sc-e254d12-10 jWbokr" data-garden-id="buttons.anchor" data-garden-version="8.76.2"><span class="Linkstyle__LinkIcon-sc-1n8u9ej-1 dxzdFk">
<div class="" style="width:100%;height:100%"><canvas style="vertical-align:top;width:0;height:0" autoplay=""></canvas>
</div></span><span class="Linkstyle__LinkContent-sc-1n8u9ej-0 keERcv"><span class="Linkstyle__LinkText-sc-1n8u9ej-3 faVsWJ">Customer Service</span><span as="span" class="Linkstyle__LinkSubtitle-sc-1n8u9ej-5 lhZesr">Manage and resolve customer inquiries across all channels in one place</span></span></a>
</li>
<li><a href="/employee-service/" data-interaction-type="link-block" data-location="navigation" class="StyledButton-sc-qe3ace-0 StyledAnchor-sc-xshgmo-0 cbIMud eLyIGa Linkstyle__LinkRoot-sc-1n8u9ej-6 fPdbCw sc-e254d12-10 jWbokr" data-garden-id="buttons.anchor" data-garden-version="8.76.2"><span class="Linkstyle__LinkIcon-sc-1n8u9ej-1 dxzdFk">
<div class="" style="width:100%;height:100%"><canvas style="vertical-align:top;width:0;height:0" autoplay=""></canvas>
</div></span><span class="Linkstyle__LinkContent-sc-1n8u9ej-0 keERcv"><span class="Linkstyle__LinkText-sc-1n8u9ej-3 faVsWJ">Employee Service</span><span as="span" class="Linkstyle__LinkSubtitle-sc-1n8u9ej-5 lhZesr">Give employees the fastest resolutions through a scalable, intuitive platform</span></span></a>
</li>
<li><a href="/service/contact-center/" data-interaction-type="link-block" data-location="navigation" class="StyledButton-sc-qe3ace-0 StyledAnchor-sc-xshgmo-0 cbIMud eLyIGa Linkstyle__LinkRoot-sc-1n8u9ej-6 fPdbCw sc-e254d12-10 jWbokr" data-garden-id="buttons.anchor" data-garden-version="8.76.2"><span class="Linkstyle__LinkIcon-sc-1n8u9ej-1 dxzdFk">
<div class="" style="width:100%;height:100%"><canvas style="vertical-align:top;width:0;height:0" autoplay=""></canvas>
</div></span><span class="Linkstyle__LinkContent-sc-1n8u9ej-0 keERcv"><span class="Linkstyle__LinkText-sc-1n8u9ej-3 faVsWJ">Contact Center</span><span as="span" class="Linkstyle__LinkSubtitle-sc-1n8u9ej-5 lhZesr">Deliver AI-powered resolutions for every call, every channel, every time</span></span></a>
</li>
<li><a href="/service/ai/ai-agents/" data-interaction-type="link-block" data-location="navigation" class="StyledButton-sc-qe3ace-0 StyledAnchor-sc-xshgmo-0 cbIMud eLyIGa Linkstyle__LinkRoot-sc-1n8u9ej-6 fPdbCw sc-e254d12-10 jWbokr" data-garden-id="buttons.anchor" data-garden-version="8.76.2"><span class="Linkstyle__LinkIcon-sc-1n8u9ej-1 dxzdFk">
<div class="" style="width:100%;height:100%"><canvas style="vertical-align:top;width:0;height:0" autoplay=""></canvas>

Shown with 425 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 884 KB.

Reading view the text a plain-fetch client can extract

title: AI-Powered Customer Service Platform | Zendesk

AI-powered customer service platform

Skip to main content AI Summit 2026 Join over 30,000 leaders online to hear from experts at OpenAI, Lovable, AWS and Uphold, plus see the latest AI innovations for service. Join over 30,000 leaders online to hear from experts at OpenAI, Lovable, AWS and Uphold, plus see the latest AI innovations for service. Register now View demo Platform Zendesk Resolution PlatformDeliver faster, higher quality resolutions with the only AI-first service platform Zendesk AIPower your service with AI that continuously improves every resolution Reporting and analyticsTurn service insights into better outcomes MarketplaceFind 1,800+ apps, partners, and integrations to serve customers and employees Actions and integrationsDrive resolutions across unified data and systems Security and TrustDeploy trusted service with enterprise-grade security and AI governance Products Customer ServiceManage and resolve customer inquiries across all channels in one place Employee ServiceGive employees the fastest resolutions through a scalable, intuitive platform Contact CenterDeliver AI-powered resolutions for every call, every channel, every time AI agentsResolve even the most complex issues on any channel autonomously CopilotEmpower service teams with the only proactive AI assistant Quality assuranceImprove your service overtime with automatic human and AI agent scoring Workforce ManagementForecast, staff, and manage agent schedules with AI-powered precision Solutions Common

2981 more words follow in the initial HTML.

5 found, 0 missing, 2 notes, from 7 checks run

  • H1Found
  • 200 wordsFound
  • llms.txtNote
  • MarkdownFound
  • Missing pathFound
  • JSON-LDFound
  • OpenAPINote
What a plain fetch found on zendesk.com
CheckResultDetail
H1 in the initial HTMLFound one H1First H1: AI-powered customer service platform
First 200 words in the initial HTMLFound 200 of 200 wordsThe initial HTML carries 3181 words of visible text; the first 200 are marked in the left pane.
llms.txt present and linkedNote present, not linked256000 bytes, 995 links. Structure grade B (5 of 6). Nothing on the home page points to it. Ora's lab found 86 percent of llms.txt fetches arrived through a link.
Markdown on requestFound text/markdownAccept: text/markdown returned 200 with text/markdown; charset=utf-8. Vary: Accept is set.
Status of a made-up pathFound 404/agent-ready-html-missing-path-check returned 404: a real status code for a missing page.
JSON-LD typesFound ContactPoint, Corporation, EntryPoint, ImageObject and 9 more13 schema.org types in JSON-LD blocks on the home page: ContactPoint, Corporation, EntryPoint, ImageObject, Offer, Organization, PostalAddress, RegisterAction, SoftwareApplication, Thing, ViewAction, WebPage, WebSite.
OpenAPI linkNote none on the home pageNo OpenAPI link on the home page. It matters only for a site that ships an API.

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 zendesk.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

  1. Ora: AgentReady launch post (Ora's lab findings) https://ora.ai/blog/agentready-launch, read 4 November 2026
  2. Ora check catalogue, contract 1.38.0 (132 checks, 42 in the Access layer) https://ora.ai/api/checks, read 5 November 2026
  3. Ora home page (the fixing product is behind a waitlist) https://ora.ai/, read 5 November 2026
  4. Ora: Introducing Deep Scan (repeat scans) https://ora.ai/blog/introducing-deep-scan, read 5 November 2026
  5. Ora llms.txt (public URLs only) https://ora.ai/llms.txt, read 5 November 2026
  6. Vercel: Make your site readable by AI agents https://vercel.com/kb/guide/make-your-site-readable-by-ai-agents, read 4 November 2026
  7. llms.txt proposal (llmstxt.org) https://llmstxt.org/, read 4 November 2026

Last reviewed 5 November 2026