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://redocly.com/ answered 200 with text/html, 448 KB, read 8 November 2026, 13:52 UTC.

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

The page answers a plain fetch: 4 of 6 checks found.

Initial HTML what a plain fetch receives

<!doctype html>
<html lang="en">
  
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>API docs for developers and AI agents
</title>
[... 22 more head elements folded ...]
<meta name="description" content="Turn your OpenAPI description into reference docs, an MCP server, SDKs and tests, kept current on every pull request. Unlimited seats on every plan.">
[... 5 more head elements folded ...]
<link rel="canonical" href="https://redocly.com/">
<link rel="sitemap" type="application/xml" href="/sitemap.xml">
<link href="https://redocly.com/docs/changelog/feed.xml" rel="alternate" type="application/rss+xml" title="Redocly Changelog RSS Feed">
<link href="https://redocly.com/blog/feed.xml" rel="alternate" type="application/rss+xml" title="Redocly Blog RSS Feed">
[... 3 more head elements folded ...]
</head>
  
<body>
    
<div id="app">
<link rel="preload" as="image" href="/content-assets/redocly-white-logo-3fc031ef02002cd4.svg"/>
<link rel="preload" as="image" href="/content-assets/plan-pro-18fefe7a4201ee56.svg"/>
<link rel="preload" as="image" href="/content-assets/plan-scale-8cbea616e2df37a5.svg"/>
<link rel="preload" as="image" href="/content-assets/plan-enterprise-ae0d5c2dd1645495.svg"/>
<link rel="preload" as="image" href="/content-assets/ernie-48c724b22c280066.webp"/>
<link rel="preload" as="image" href="/content-assets/github-eb8d031da2c3cd09.svg"/>
<link rel="preload" as="image" href="/content-assets/linkedin-82d71284d3d781c8.svg"/>
<link rel="preload" as="image" href="/content-assets/logo-x-0d3770e5daa7e072.svg"/>
<link rel="preload" as="image" href="/content-assets/youtube-db77902957ee8f03.svg"/>
<div data-component-name="layouts/RootLayout"><a href="#content" class="SkipContent__SkipContentLint-sc-suhfat-0 emgBRe">Skip to content</a>
<nav data-component-name="Navbar/Navbar" class="Navbar__NavbarContainer-sc-rw1cxk-12 ffEwui">
<div class="Navbar__NavbarRow-sc-rw1cxk-11 jRmDhF">
<div class="Navbar__LogoMenuWrapper-sc-rw1cxk-1 dWNYxf">
<div data-component-name="Navbar/NavbarLogo" class="Logo__LogoWrapper-sc-peiao4-0 dbVxFF NavbarLogo__NavbarLogoComponent-sc-mbaqv4-0 jkTcEs"><a href="/" data-discover="true"><img src="/content-assets/redocly-white-logo-3fc031ef02002cd4.svg" alt="Redocly logo" class="NavbarLogo__NavbarLogoComponent-sc-mbaqv4-0 jkTcEs"/></a>
</div>
<ul data-component-name="Navbar/NavbarMenu" class="NavbarMenu__NavItemsContainer-sc-veei4l-2 dbeWio">
<div id="nav-items-block" class="NavbarMenu__NavItemsBlock-sc-veei4l-1 czxLhG">
<div id="navigation-menu" class="NavbarMenu__NavigationMenu-sc-veei4l-0 jVyMYS">
</div>
<div data-component-name="Dropdown/Dropdown" data-testid="dropdown" class="Dropdown__DropdownWrapper-sc-njjcxg-0 jjWaPR NavbarItem__NavbarMenuItemDropdown-sc-dj7tmo-3 iInuql">
<li data-component-name="Navbar/NavbarItem" aria-haspopup="menu" aria-expanded="false" class="NavbarItem__NavbarMenuItem-sc-dj7tmo-5 gHKAfI"><i class="NavbarItem__NavbarIcon-sc-dj7tmo-7"></i><span class="NavbarItem__NavbarLabel-sc-dj7tmo-6 bdyjWC">Products</span>
<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg" class="NavbarItem__ArrowIcon-sc-dj7tmo-2 dEdtnR">[... 185 characters folded ...]
</svg>
</li>
<div class="Dropdown__ChildrenWrapper-sc-njjcxg-1 kJKYeA">
<div class="NavbarItem__DropdownCasket-sc-dj7tmo-0 jqRZWd">
<div class="NavbarItem__DropdownWrapper-sc-dj7tmo-1 bEWpgG">
<div data-component-name="Navbar/ProductsDropdown" class="ProductsDropdown__Panel-sc-x53efs-0 hvMwhc">
<div class="ProductsDropdown__Columns-sc-x53efs-1 dPELrc">
<div class="ProductsDropdown__Core-sc-x53efs-2 jEwdTL"><a class="ProductsDropdown__HeadLink-sc-x53efs-4 fOIAEy" href="/platform" data-discover="true"><span class="ProductsDropdown__HeadName-sc-x53efs-5 cZoNPa">Platform</span><span class="ProductsDropdown__HeadDescription-sc-x53efs-6 kUZImj">Edit, review and publish your API docs in one place.</span><span aria-hidden="true" class="ProductsDropdown__Go-sc-x53efs-3 icWpLc">
<svg viewBox="0 0 32 32" fill="currentColor" aria-hidden="true" focusable="false" class="productsMenuIcons__Svg-sc-87qrye-0 dRrhog"><path d="M18 6 16.57 7.393 24.15 15 4 15 4 17 24.15 17 16.57 24.573 18 26 28 16 18 6z"></path>
</svg></span></a>
<div class="ProductsDropdown__Items-sc-x53efs-7 gmdEmc"><a class="ProductsDropdown__ItemLink-sc-x53efs-9 kQYijA" href="/platform#editor" data-discover="true"><span class="ProductsDropdown__ItemName-sc-x53efs-10 jmUTVf">Content editor</span><span class="ProductsDropdown__ItemDescription-sc-x53efs-11 jRWpOn">Edit pages right in the browser</span><span aria-hidden="true" class="ProductsDropdown__ItemArrow-sc-x53efs-8 knKttx">
<svg viewBox="0 0 32 32" fill="currentColor" aria-hidden="true" focusable="false" class="productsMenuIcons__Svg-sc-87qrye-0 dRrhog"><path d="M18 6 16.57 7.393 24.15 15 4 15 4 17 24.15 17 16.57 24.573 18 26 28 16 18 6z"></path>
</svg></span></a><a class="ProductsDropdown__ItemLink-sc-x53efs-9 kQYijA" href="/reviewer" data-discover="true"><span class="ProductsDropdown__ItemName-sc-x53efs-10 jmUTVf">Reviewer agent<span class="ProductsDropdown__AiNew-sc-x53efs-12 fjPnjc">
<svg viewBox="0 0 32 32" aria-hidden="true" focusable="false" class="productsMenuIcons__Svg-sc-87qrye-0 dRrhog">[... 355 characters folded ...]
</svg>New</span></span><span class="ProductsDropdown__ItemDescription-sc-x53efs-11 jRWpOn">Comments on every docs PR</span><span aria-hidden="true" class="ProductsDropdown__ItemArrow-sc-x53efs-8 knKttx">
<svg viewBox="0 0 32 32" fill="currentColor" aria-hidden="true" focusable="false" class="productsMenuIcons__Svg-sc-87qrye-0 dRrhog"><path d="M18 6 16.57 7.393 24.15 15 4 15 4 17 24.15 17 16.57 24.573 18 26 28 16 18 6z"></path>
</svg></span></a><a class="ProductsDropdown__ItemLink-sc-x53efs-9 kQYijA" href="/respect" data-discover="true"><span class="ProductsDropdown__ItemName-sc-x53efs-10 jmUTVf">Respect Monitoring</span><span class="ProductsDropdown__ItemDescription-sc-x53efs-11 jRWpOn">Checks live APIs on a schedule</span><span aria-hidden="true" class="ProductsDropdown__ItemArrow-sc-x53efs-8 knKttx">
<svg viewBox="0 0 32 32" fill="currentColor" aria-hidden="true" focusable="false" class="productsMenuIcons__Svg-sc-87qrye-0 dRrhog"><path d="M18 6 16.57 7.393 24.15 15 4 15 4 17 24.15 17 16.57 24.573 18 26 28 16 18 6z"></path>
</svg></span></a><a class="ProductsDropdown__ItemLink-sc-x53efs-9 kQYijA" href="/writer" data-discover="true"><span class="ProductsDropdown__ItemName-sc-x53efs-10 jmUTVf">Writer agent<span class="ProductsDropdown__AiNew-sc-x53efs-12 fjPnjc">
<svg viewBox="0 0 32 32" aria-hidden="true" focusable="false" class="productsMenuIcons__Svg-sc-87qrye-0 dRrhog">[... 355 characters folded ...]
</svg>New</span></span><span class="ProductsDropdown__ItemDescription-sc-x53efs-11 jRWpOn">Turns user signals into docs PRs</span><span aria-hidden="true" class="ProductsDropdown__ItemArrow-sc-x53efs-8 knKttx">
<svg viewBox="0 0 32 32" fill="currentColor" aria-hidden="true" focusable="false" class="productsMenuIcons__Svg-sc-87qrye-0 dRrhog"><path d="M18 6 16.57 7.393 24.15 15 4 15 4 17 24.15 17 16.57 24.573 18 26 28 16 18 6z"></path>
</svg></span></a>
</div>
<div class="ProductsDropdown__FrameworkRow-sc-x53efs-13 bIuldE"><a class="ProductsDropdown__HeadLink-sc-x53efs-4 fOIAEy" href="/product" data-discover="true"><span class="ProductsDropdown__HeadName-sc-x53efs-5 cZoNPa">Framework</span><span class="ProductsDropdown__HeadDescription-sc-x53efs-6 kUZImj">Docs as code, from Markdown to React</span><span aria-hidden="true" class="ProductsDropdown__Go-sc-x53efs-3 icWpLc">
<svg viewBox="0 0 32 32" fill="currentColor" aria-hidden="true" focusable="false" class="productsMenuIcons__Svg-sc-87qrye-0 dRrhog"><path d="M18 6 16.57 7.393 24.15 15 4 15 4 17 24.15 17 16.57 24.573 18 26 28 16 18 6z"></path>
</svg></span></a>
</div>
</div>
<div class="ProductsDropdown__OpenSource-sc-x53efs-14 exqfwm">
<div class="ProductsDropdown__Card-sc-x53efs-15 dVIkUl"><a class="ProductsDropdown__CardLink-sc-x53efs-16 gOQbfK" href="/redocly-cli" data-discover="true"><span class="ProductsDropdown__CardName-sc-x53efs-17 jUnokJ">Redocly CLI<span aria-label="1.5k GitHub stars" class="ProductsDropdown__Stars-sc-x53efs-19 RvTVU">
<svg viewBox="0 0 16 16" aria-hidden="true" focusable="false">[... 606 characters folded ...]
</svg>1.5k</span></span><span class="ProductsDropdown__CardDescription-sc-x53efs-20 ccyVWY">Lint, bundle and ship API descriptions.</span><span aria-hidden="true" class="ProductsDropdown__Go-sc-x53efs-3 icWpLc">
<svg viewBox="0 0 32 32" fill="currentColor" aria-hidden="true" focusable="false" class="productsMenuIcons__Svg-sc-87qrye-0 dRrhog"><path d="M18 6 16.57 7.393 24.15 15 4 15 4 17 24.15 17 16.57 24.573 18 26 28 16 18 6z"></path>
</svg></span></a>
<div class="ProductsDropdown__CommandsBlock-sc-x53efs-21 hYWEAf">
<p class="ProductsDropdown__CommandsLabel-sc-x53efs-22 egHicv">Explore commands
</p>
<div class="ProductsDropdown__Commands-sc-x53efs-23 eWefQq"><a class="ProductsDropdown__Command-sc-x53efs-24 AIrcz" href="/score" data-discover="true">score</a><a class="ProductsDropdown__Command-sc-x53efs-24 AIrcz" href="/respect-cli" data-discover="true">respect</a><a class="ProductsDropdown__Command-sc-x53efs-24 AIrcz" href="/generate-arazzo" data-discover="true">generate-arazzo</a><a class="ProductsDropdown__Command-sc-x53efs-24 AIrcz" href="/client-generator" data-discover="true">generate-client</a><a class="ProductsDropdown__Command-sc-x53efs-24 AIrcz" href="/generate-spec" data-discover="true">generate-spec</a><a class="ProductsDropdown__Command-sc-x53efs-24 AIrcz" href="/drift" data-discover="true">drift</a><a class="ProductsDropdown__Command-sc-x53efs-24 AIrcz" href="/recheck" data-discover="true">recheck</a>
</div>
</div>
</div>
<div class="ProductsDropdown__Card-sc-x53efs-15 dFBcTu"><a class="ProductsDropdown__CardLink-sc-x53efs-16 gOQbfK" href="/redoc-ce" data-discover="true"><span class="ProductsDropdown__CardName-sc-x53efs-17 jUnokJ">Redoc CE<span class="ProductsDropdown__Version-sc-x53efs-18 kCqJnP">3.0</span><span aria-label="25.8k GitHub stars" class="ProductsDropdown__Stars-sc-x53efs-19 RvTVU">
<svg viewBox="0 0 16 16" aria-hidden="true" focusable="false">[... 606 characters folded ...]
</svg>25.8k</span></span><span class="ProductsDropdown__CardDescription-sc-x53efs-20 ccyVWY">Turn an API description into reference docs.</span><span aria-hidden="true" class="ProductsDropdown__Go-sc-x53efs-3 icWpLc">
<svg viewBox="0 0 32 32" fill="currentColor" aria-hidden="true" focusable="false" class="productsMenuIcons__Svg-sc-87qrye-0 dRrhog"><path d="M18 6 16.57 7.393 24.15 15 4 15 4 17 24.15 17 16.57 24.573 18 26 28 16 18 6z"></path>
</svg></span></a>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<li data-component-name="Navbar/NavbarItem" class="NavbarItem__NavbarMenuItem-sc-dj7tmo-5 gHKAfI"><a class="NavbarItem__NavbarLink-sc-dj7tmo-4 gZTlep" href="/docs" data-discover="true"><span class="NavbarItem__NavbarLabel-sc-dj7tmo-6 bdyjWC">Docs</span></a>
</li>
<li data-component-name="Navbar/NavbarItem" class="NavbarItem__NavbarMenuItem-sc-dj7tmo-5 gHKAfI"><a class="NavbarItem__NavbarLink-sc-dj7tmo-4 gZTlep" href="/learn" data-discover="true"><span class="NavbarItem__NavbarLabel-sc-dj7tmo-6 bdyjWC">Learn</span></a>
</li>
<li data-component-name="Navbar/NavbarItem" class="NavbarItem__NavbarMenuItem-sc-dj7tmo-5 gHKAfI"><a class="NavbarItem__NavbarLink-sc-dj7tmo-4 gZTlep" href="/customers" data-discover="true"><span class="NavbarItem__NavbarLabel-sc-dj7tmo-6 bdyjWC">Customers</span></a>
</li>
<li data-component-name="Navbar/NavbarItem" class="NavbarItem__NavbarMenuItem-sc-dj7tmo-5 gHKAfI"><a class="NavbarItem__NavbarLink-sc-dj7tmo-4 gZTlep" href="/pricing" data-discover="true"><span class="NavbarItem__NavbarLabel-sc-dj7tmo-6 bdyjWC">Pricing</span></a>
</li>
</div>
</ul>
</div>
<div class="Navbar__RightPanelWrapper-sc-rw1cxk-0 jhtqPr">
<div class="Navbar__ColorModeSwitcherWrapper-sc-rw1cxk-10 hoqoyd"><button data-component-name="ColorModeSwitcher/ColorModeSwitcher" data-testid="color-mode-switcher" aria-label="light" class="Button__StyledButton-sc-usp0tw-1 fmxQVS button button-tone-default button-variant-secondary button-size-medium Button-sc-usp0tw-2">
<svg viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg" data-testid="light" data-component-name="icons/MoonIcon/MoonIcon" class="MoonIcon-sc-a14r9w-0 hjQQqa">[... 1,512 characters folded ...]
</svg></button>
</div><button data-component-name="Button/Button" data-cy="mobile-menu-button" aria-label="Open menu" class="Button__StyledButton-sc-usp0tw-1 fmxQVS button button-tone-default button-variant-text button-size-medium Button-sc-usp0tw-2 Navbar__MobileMenuButton-sc-rw1cxk-3 kXzHnP">
<svg xmlns="http://www.w3.org/2000/svg" height="24px" viewBox="0 0 24 24" width="24px" fill="var(--color-text-accent)" style="margin:0 auto"><path d="M0 0h24v24H0z" fill="none"></path><path d="M3 18h18v-2H3v2zm0-5h18v-2H3v2zm0-7v2h18V6H3z"></path>
</svg></button>
<div class="Navbar__DesktopWrapper-sc-rw1cxk-9 ibqojb"><a href="https://auth.cloud.redocly.com/login" rel="noreferrer" target="_blank" class="Button__StyledButtonLink-sc-usp0tw-0 hlMkWA"><button data-component-name="Button/Button" class="Button__StyledButton-sc-usp0tw-1 eBCNJY button button-tone-default button-variant-secondary button-size-medium Button-sc-usp0tw-2 Navbar__StyledSignUpButton-sc-rw1cxk-7 Navbar__StyledLogInButton-sc-rw1cxk-8 hKpKwD fTSVPs landing-button" tabindex="-1">Log In</button></a><a href="https://auth.cloud.redocly.com/registration" rel="noreferrer" target="_blank" class="Button__StyledButtonLink-sc-usp0tw-0 hlMkWA"><button data-component-name="Button/Button" class="Button__StyledButton-sc-usp0tw-1 eBCNJY button button-tone-default button-variant-secondary button-size-medium Button-sc-usp0tw-2 Navbar__StyledSignUpButton-sc-rw1cxk-7 hKpKwD landing-button" tabindex="-1">Start 30-day free trial</button></a>
</div>
</div>
</div>
</nav>
<div data-component-name="Layout/PageLayout" class="PageLayout__Container-sc-p1hfj5-0 hJQRJA">
<div id="content" tabindex="0" class="PageLayout__ContentContainer-sc-p1hfj5-1 hTXjqK">
<div class="Home__f-sc-2h7jm1-0 blsfZm">
<section class="HeroSection__N-sc-d241ih-0 gkFtaz">
<div aria-hidden="true" class="HeroDots__nt-sc-mqqofd-0 bGHarr">
<div class="HeroDots__it-sc-mqqofd-1 iLGtSE">
</div>
</div>
<div class="shared__R-sc-gsfo2w-0 HeroSection__P-sc-d241ih-1 cssAKj knXkhw"><a class="HeroSection__z-sc-d241ih-2 hMcYnX" href="/reviewer" data-discover="true"><span class="HeroSection__D-sc-d241ih-3 dOkUWO">New</span><span class="HeroSection__H-sc-d241ih-4 inzTjH">Reviewer Agent</span><span aria-hidden="true" class="shared__n-sc-gsfo2w-14 jZbQPK">
<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true" focusable="false"><path d="M5 12h14"></path><path d="m12 5 7 7-7 7"></path>
</svg>
<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true" focusable="false"><path d="M5 12h14"></path><path d="m12 5 7 7-7 7"></path>
</svg></span></a>
<h1 aria-label="Does AI know how to use your API?" class="HeroSection__L-sc-d241ih-5 gFjzNM"><span aria-hidden="true">Does AI know how to use<!-- --> <span class="HeroSection__W-sc-d241ih-6 iuPziO">your <span class="HeroSection__M-sc-d241ih-7 jkWwOE"><span aria-hidden="true" class="HeroSection__O-sc-d241ih-8 iwKwnz">product<span class="HeroSection___-sc-d241ih-9 kruitE"></span>?</span><span class="HeroSection__B-sc-d241ih-10 eFXnkE"><span class="HeroSection__K-sc-d241ih-11 JwfvQ">API</span><span aria-hidden="true" class="HeroSection__Y-sc-d241ih-12 kLfBqn"></span>?</span></span></span></span>
</h1>
<p class="HeroSection__G-sc-d241ih-13 hPRMVA">Redocly <strong>scores your API description for agent-readiness</strong>, flags what an agent would get wrong, and publishes it the way agents and developers read it: a reference with try-it, an <strong>MCP server</strong>, <strong>SDKs</strong> and<!-- --> <strong>workflows tested against production</strong>. All from the API description you already have, with every seat included.
</p>
<div class="HeroSection__U-sc-d241ih-14 hEqNjL"><a href="https://auth.cloud.redocly.com/registration" rel="noreferrer" target="_blank" class="CustomButton__s-sc-mn7xm4-0 iVbCdg"><button to="https://auth.cloud.redocly.com/registration" class="CustomButton__f-sc-mn7xm4-1 jTqEvq button-variant-dark CustomButton__y-sc-mn7xm4-3 shared__O-sc-gsfo2w-12 HeroSection__j-sc-d241ih-15 bbFFim juqaYA" data-component-name="Button/Button">Start 30-day free trial</button></a>
<ul class="HeroSection__q-sc-d241ih-16 dfPalR">

Shown with 46 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 448 KB.

Reading view the text a plain-fetch client can extract

title: API docs for developers and AI agents

Does AI know how to use your product ? API ?

Skip to content Products PlatformEdit, review and publish your API docs in one place. Content editorEdit pages right in the browser Reviewer agent NewComments on every docs PR Respect MonitoringChecks live APIs on a schedule Writer agent NewTurns user signals into docs PRs FrameworkDocs as code, from Markdown to React Redocly CLI 1.5kLint, bundle and ship API descriptions. Explore commands score respect generate-arazzo generate-client generate-spec drift recheck Redoc CE3.0 25.8kTurn an API description into reference docs. Docs Learn Customers Pricing Log In Start 30-day free trial NewReviewer Agent Does AI know how to use your product?API? Redocly scores your API description for agent-readiness, flags what an agent would get wrong, and publishes it the way agents and developers read it: a reference with try-it, an MCP server, SDKs and workflows tested against production. All from the API description you already have, with every seat included. Start 30-day free trial 1M+weekly CLI downloads 1B+API lint runs 212,000+companies No credit cardto start openapi.yaml·your API description, in your repo Reference + try‑ittry-it for OpenAPI, GraphQL Mock serverlive before the backend is SDKsEarly accessTypeScript, Python, Go, PHP Workflows + testsArazzo, run against production Lint + scoreagent-readiness, on every PR MCP serveryour docs, as tools

1184 more words follow in the initial HTML.

4 found, 1 missing, 2 notes, from 7 checks run

  • H1Found
  • 200 wordsFound
  • llms.txtNote
  • MarkdownFound
  • Missing pathFound
  • JSON-LDMissing
  • OpenAPINote
What a plain fetch found on redocly.com
CheckResultDetail
H1 in the initial HTMLFound one H1First H1: Does AI know how to use your product ? API ?
First 200 words in the initial HTMLFound 200 of 200 wordsThe initial HTML carries 1384 words of visible text; the first 200 are marked in the left pane.
llms.txt present and linkedNote present, not linked128108 bytes, 1152 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 typesMissing noneNo JSON-LD block on the home page. Ora's lab found it made no difference when the answer was already in the HTML; Google says it is not needed for AI features.
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 redocly.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