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://calendly.com/ answered 200 with text/html, 925 KB, read 8 November 2026, 13:52 UTC.

Permalink: /viewer/?url=https://calendly.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>
[... 1 more head element folded ...]
<meta charset="utf-8">
[... 5 more head elements folded ...]
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="Calendly connects and simplifies all of the work around meetings, from scheduling, payments, and meeting prep to notetaking, contact management, and follow-up.">
[... 1 more head element folded ...]
<title>Meeting Scheduling Software and AI Meeting Tools | Calendly
</title>
<meta name="robots" content="index, follow">
<link rel="canonical" href="https://calendly.com">
<link rel="alternate" hreflang="x-default" href="https://calendly.com">
<link rel="alternate" hreflang="en" href="https://calendly.com">
<link rel="alternate" hreflang="fr" href="https://calendly.com/fr">
<link rel="alternate" hreflang="es" href="https://calendly.com/es">
<link rel="alternate" hreflang="de" href="https://calendly.com/de">
<link rel="alternate" hreflang="pt" href="https://calendly.com/pt">
[... 22 more head elements folded ...]
</head>
<body data-testid="marketing-site" class="bg-surface-bg-primary text-main-800n font-geist">
<noscript>[... 139 characters folded ...]
</noscript>
<script>[... 2,556 characters folded ...]
</script>
<style>astro-island,astro-slot,astro-static-slot{display:contents}
</style>
<script>[... 130 characters folded ...]
</script>
<script>[... 4,380 characters folded ...]
</script><astro-island uid="Z1rye77" prefix="r16" component-url="/_astro/index.B-kGFpxn.js" component-export="GlobalSignupModalIsland" renderer-url="/_astro/client.DSHm9q9k.js" props="{&quot;copy&quot;:[0,{&quot;title&quot;:[0,&q [... 921 characters folded ...]></astro-island><astro-island uid="Z1QAjhA" prefix="r17" component-url="/_astro/BrowserExtensionDetection.Djr8Z4sV.js" component-export="BrowserExtensionDetection" renderer-url="/_astro/client.DSHm9q9k.js" props="{}" ssr client="load" o [... 86 characters folded ...]></astro-island>
<script>[... 130 characters folded ...]
</script><astro-island uid="1vyQI8" component-url="/_astro/index.B-kGFpxn.js" component-export="SessionReplayIsland" renderer-url="/_astro/client.DSHm9q9k.js" props="{}" ssr client="only" opts="{&quot;name&quot;:&quot;SessionReplayIsland&quot;,&quot;value&quot;:&quot;react&quot;}"></astro-island><astro-island uid="15q8Le" component-url="/_astro/index.B-kGFpxn.js" component-export="IntercomChatIsland" renderer-url="/_astro/client.DSHm9q9k.js" props="{&quot;disabled&quot;:[0,false]}" ssr client="only" opts="{&quot;name&quot;:&quot;IntercomChatIsland&quot;,&quot;value&quot;:&quot;react&quot;}"></astro-island><astro-island uid="ZQkz2X" component-url="/_astro/index.B-kGFpxn.js" component-export="PageTracker" renderer-url="/_astro/client.DSHm9q9k.js" props="{&quot;is404&quot;:[0,false]}" ssr client="only" opts="{&quot;name&quot;:&quot;PageTracker&quot;,&quot;value&quot;:&quot;react&quot;}"></astro-island>
<script>[... 1,795 characters folded ...]
</script><astro-island uid="sCIna" prefix="r21" component-url="/_astro/index.B-kGFpxn.js" component-export="HeaderIsland" renderer-url="/_astro/client.DSHm9q9k.js" props="{&quot;locale&quot;:[0,&quot;en-US&quot;],&quot;ctaTalkToS [... 8525 characters folded ...]>
<header class="w-full bg-surface-bg-primary transition-shadow duration-200 sticky top-0" id="site-header" style="z-index:1000">
<div class="max-w-480 mx-auto">
<div>
<div class="mx-auto flex items-center justify-between px-lg-fixed ui-tb:px-2xl-fixed ui-dsk:px-3xl-fixed" style="height:var(--header-nav-height)">
<div class="flex items-center gap-lg-fixed"><a href="/" class="keyboard-focus-before flex shrink-0 items-center w-auto rounded-ui-fixed-xxs" aria-label="Calendly">
<div class="h-8 w-fit relative flex items-end h-6 mbl:h-8" role="img" aria-label="Calendly">
<svg class="h-full aspect-square shrink-0" viewBox="0 0 32 32" fill="none" aria-hidden="true">[... 1,438 characters folded ...]
</svg><span class="h-full aspect-1/4 shrink-0" aria-hidden="true"></span>
<svg class="h-[86.55%] aspect-[116.337/27.6973] shrink-0 -translate-y-[1%]" viewBox="0 0 116.337 27.6973" fill="none" aria-hidden="true">[... 5,057 characters folded ...]
</svg>
</div></a>
<nav class="hidden items-center gap-xxs-fixed ui-sdsk-nav:flex">
<div class="group relative flex items-center rounded-ui-fixed-xs transition-colors hover:bg-linen has-focus-visible:[outline:2px_solid_var(--color-action-focus-border)]"><button type="button" class="group inline-flex items-center gap-xxs-fixed rounded-ui-fixed-xs px-xs-fixed py-xs-fixed type-body-sm-fixed font-medium font-geist text-text-primary focus:outline-none" aria-expanded="false">Product
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-chevron-down transition-transform duration-200" aria-hidden="true"><path d="M6 9l6 6l6 -6"></path>
</svg></button>
</div>
<div class="group relative flex items-center rounded-ui-fixed-xs transition-colors hover:bg-linen has-focus-visible:[outline:2px_solid_var(--color-action-focus-border)]"><button type="button" class="group inline-flex items-center gap-xxs-fixed rounded-ui-fixed-xs px-xs-fixed py-xs-fixed type-body-sm-fixed font-medium font-geist text-text-primary focus:outline-none" aria-expanded="false">Solutions
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-chevron-down transition-transform duration-200" aria-hidden="true"><path d="M6 9l6 6l6 -6"></path>
</svg></button>
</div>
<div class="group relative flex items-center rounded-ui-fixed-xs transition-colors hover:bg-linen has-focus-visible:[outline:2px_solid_var(--color-action-focus-border)]"><button type="button" class="group inline-flex items-center gap-xxs-fixed rounded-ui-fixed-xs px-xs-fixed py-xs-fixed type-body-sm-fixed font-medium font-geist text-text-primary focus:outline-none" aria-expanded="false">Resources
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-chevron-down transition-transform duration-200" aria-hidden="true"><path d="M6 9l6 6l6 -6"></path>
</svg></button>
</div>
<div class="group relative flex items-center rounded-ui-fixed-xs transition-colors hover:bg-linen has-focus-visible:[outline:2px_solid_var(--color-action-focus-border)]"><a href="/pricing" class="inline-flex items-center px-xs-fixed py-xs-fixed type-body-sm-fixed font-medium font-geist text-text-primary focus-visible:outline-none">Pricing</a>
</div>
</nav>
</div>
<div class="flex items-center gap-sm-fixed"><a href="/contact" role="button" tabindex="0" data-button-variant="tertiary" class="inline-flex items-center justify-center font-geist font-medium leading-ui-body-sm tracking-ui-none whitespace-nowrap transition-colors d [... 658 characters folded ...]>Talk to sales</a><span data-auth-visible="out"><a href="/login" role="button" tabindex="0" data-button-variant="secondary" class="inline-flex items-center justify-center font-geist font-medium leading-ui-body-sm tracking-ui-none whitespace-nowrap transition-colors du [... 905 characters folded ...]>Log In</a></span><span data-auth-visible="out"><a href="/signup" role="button" tabindex="0" data-button-variant="primary" class="inline-flex items-center justify-center font-geist font-medium leading-ui-body-sm tracking-ui-none whitespace-nowrap transition-colors dur [... 530 characters folded ...]><span class="mbl:hidden">Get started</span><span class="hidden mbl:inline">Get started for free</span></a></span><span data-auth-visible="in"><a href="/event_types/user/me" role="button" tabindex="0" data-button-variant="primary" rel="nofollow" class="inline-flex items-center justify-center font-geist font-medium leading-ui-body-sm tracking-ui-none whitespace- [... 558 characters folded ...]>My Account</a></span><button type="button" class="keyboard-focus-before relative flex h-6 w-6 ml-xs-fixed items-center justify-center rounded-ui-xxs ui-sdsk-nav:hidden" aria-label="Open menu" aria-expanded="false">
<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-menu-2 a [... 103 characters folded ...]><path d="M4 6l16 0"></path><path d="M4 12l16 0"></path><path d="M4 18l16 0"></path>
</svg>
<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-x absolu [... 102 characters folded ...]><path d="M18 6l-12 12"></path><path d="M6 6l12 12"></path>
</svg></button>
</div>
</div>
</div>
</div>
</header>
<div class="fixed inset-0 ui-sdsk-nav:hidden transition-[opacity,visibility] duration-300" style="top:var(--header-height);z-index:2147483646;opacity:0;visibility:hidden"><button type="button" aria-label="Close navigation" tabindex="-1" class="absolute inset-0 block cursor-default bg-transparent" style="background:rgba(7,26,49,0.2)"></button>
<div class="absolute top-0 right-0 bottom-0 w-full max-w-140 flex flex-col border-t border-divider bg-surface-bg-primary transition-transform duration-300" style="transform:translateX(8px)">
<nav class="flex flex-col flex-1 overflow-y-auto overscroll-contain">
<div class="_90SS5G_scrollFadeTop" aria-hidden="true" style="opacity:0;transition:opacity 0.2s">
</div>
<div><button type="button" class="keyboard-focus-before [--kb-focus-offset:-1px] flex w-full items-center justify-between border-b pl-lg-fixed mbl:pl-xl-fixed pr-xs-fixed ui-tb:pr-lg-fixed py-xs-fixed mbl:h-16 border-divider type-body-md-fixed font-medium font-geist" aria-expanded="false">Product<span class="flex shrink-0 items-center px-md-fixed py-xs-fixed">
<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-chevron-down transition-transform duration-200"><path d="M6 9l6 6l6 -6"></path>
</svg></span></button>
<div class="grid transition-[grid-template-rows] duration-300 ease-in-out grid-rows-[0fr]">
<div class="overflow-hidden">
<div class="border-b border-divider bg-white px-xl-fixed pt-sm-fixed pb-lg-fixed"><span class="block pt-sm-fixed pb-sm-fixed type-overline font-geist text-text-secondary">Products</span><a href="/scheduling" class="keyboard-focus-before flex items-center gap-xs-fixed rounded-ui-fixed-sm px-sm-fixed py-xs-fixed transition-colors hover:bg-linen">
<div class="relative size-[56px] size-9! shrink-0">
<svg class="absolute inset-0 size-full" viewBox="0 0 56 56" fill="none" aria-hidden="true">[... 170 characters folded ...]
</svg>
<div class="relative size-full flex items-center justify-center">
<div class="absolute inset-[14.29%] [&amp;&gt;svg]:size-full" style="--fill-0:#071A31" role="img">
<svg preserveAspectRatio="xMidYMid meet" width="100%" height="100%" overflow="visible" style="display: block;" viewBox="-6.0520 -3.3320 40 40" fill="none" xmlns="http://www.w3.org/2000/svg">[... 2,783 characters folded ...]
</svg>
</div>
</div>
</div><span class="flex flex-col gap-0.5"><span class="flex min-w-0 items-center gap-1.5"><span class="min-w-0 truncate text-base font-medium font-geist text-text-primary">Scheduling</span></span><span class="text-xs font-geist text-text-secondary line-clamp-1">Simplified booking</span></span></a><a href="/ai-assistant" class="keyboard-focus-before flex items-center gap-xs-fixed rounded-ui-fixed-sm px-sm-fixed py-xs-fixed transition-colors hover:bg-linen">
<div class="relative size-[56px] size-9! shrink-0">
<svg class="absolute inset-0 size-full" viewBox="0 0 56 56" fill="none" aria-hidden="true">[... 170 characters folded ...]
</svg>
<div class="relative size-full flex items-center justify-center">
<div class="absolute inset-[14.29%] [&amp;&gt;svg]:size-full" style="--fill-0:#071A31" role="img">
<svg preserveAspectRatio="xMidYMid meet" width="100%" height="100%" overflow="visible" style="display: block;" viewBox="0 0 40 40" fill="none" xmlns="http://www.w3.org/2000/svg">[... 1,692 characters folded ...]
</svg>
</div>
</div>
</div><span class="flex flex-col gap-0.5"><span class="flex min-w-0 items-center gap-1.5"><span class="min-w-0 truncate text-base font-medium font-geist text-text-primary">Callie</span><span class="w-fit inline-flex items-center justify-center gap-xxs rounded-ui-xxs font-geist font-medium py-[2px] px-xs-fixed type-body-xs-fixed bg-badge-neutral-bg text-badge-neutral-text shrink-0">Beta</span></span><span class="text-xs font-geist text-text-secondary line-clamp-1">AI assistant</span></span></a><a href="/notetaker" class="keyboard-focus-before flex items-center gap-xs-fixed rounded-ui-fixed-sm px-sm-fixed py-xs-fixed transition-colors hover:bg-linen">
<div class="relative size-[56px] size-9! shrink-0">
<svg class="absolute inset-0 size-full" viewBox="0 0 56 56" fill="none" aria-hidden="true">[... 170 characters folded ...]
</svg>
<div class="relative size-full flex items-center justify-center">
<div class="absolute inset-[14.29%] [&amp;&gt;svg]:size-full" style="--fill-0:#071A31" role="img">
<svg preserveAspectRatio="xMidYMid meet" width="100%" height="100%" overflow="visible" style="display: block;" viewBox="-3.3320 -3.3320 40 40" fill="none" xmlns="http://www.w3.org/2000/svg">[... 2,503 characters folded ...]
</svg>
</div>
</div>
</div><span class="flex flex-col gap-0.5"><span class="flex min-w-0 items-center gap-1.5"><span class="min-w-0 truncate text-base font-medium font-geist text-text-primary">Notetaker</span></span><span class="text-xs font-geist text-text-secondary line-clamp-1">Meeting recaps and action items</span></span></a><a href="/contacts" class="keyboard-focus-before flex items-center gap-xs-fixed rounded-ui-fixed-sm px-sm-fixed py-xs-fixed transition-colors hover:bg-linen">
<div class="relative size-[56px] size-9! shrink-0">
<svg class="absolute inset-0 size-full" viewBox="0 0 56 56" fill="none" aria-hidden="true">[... 170 characters folded ...]
</svg>
<div class="relative size-full flex items-center justify-center">
<div class="absolute inset-[14.29%] [&amp;&gt;svg]:size-full" style="--fill-0:#071A31" role="img">
<svg preserveAspectRatio="xMidYMid meet" width="100%" height="100%" overflow="visible" style="display: block;" viewBox="-3.6960 -3.3320 40 40" fill="none" xmlns="http://www.w3.org/2000/svg">[... 1,932 characters folded ...]
</svg>
</div>
</div>
</div><span class="flex flex-col gap-0.5"><span class="flex min-w-0 items-center gap-1.5"><span class="min-w-0 truncate text-base font-medium font-geist text-text-primary">Contacts</span></span><span class="text-xs font-geist text-text-secondary line-clamp-1">Relationship management tools</span></span></a><a href="/payments" class="keyboard-focus-before flex items-center gap-xs-fixed rounded-ui-fixed-sm px-sm-fixed py-xs-fixed transition-colors hover:bg-linen">
<div class="relative size-[56px] size-9! shrink-0">
<svg class="absolute inset-0 size-full" viewBox="0 0 56 56" fill="none" aria-hidden="true">[... 170 characters folded ...]
</svg>
<div class="relative size-full flex items-center justify-center">
<div class="absolute inset-[14.29%] [&amp;&gt;svg]:size-full" style="--fill-0:#071A31" role="img">
<svg preserveAspectRatio="xMidYMid meet" width="100%" height="100%" overflow="visible" style="display: block;" viewBox="-3.2640 -5.2440 40 40" fill="none" xmlns="http://www.w3.org/2000/svg">[... 2,618 characters folded ...]
</svg>
</div>
</div>
</div><span class="flex flex-col gap-0.5"><span class="flex min-w-0 items-center gap-1.5"><span class="min-w-0 truncate text-base font-medium font-geist text-text-primary">Payments</span></span><span class="text-xs font-geist text-text-secondary line-clamp-1">Flexible ways to get paid</span></span></a><span class="block pt-sm-fixed pb-sm-fixed type-overline font-geist text-text-secondary mt-sm-fixed">Platform</span><a href="/integration" class="keyboard-focus-before block ml-sm-fixed border-l border-divider pl-sm-fixed py-sm-fixed rounded-r-ui-fixed-sm hover:bg-linen text-base font-medium font-geist text-text-primary">Integrations</a><a href="/security" class="keyboard-focus-before block ml-sm-fixed border-l border-divider pl-sm-fixed py-sm-fixed rounded-r-ui-fixed-sm hover:bg-linen text-base font-medium font-geist text-text-primary">Security</a><a href="/features/mobile-apps" class="keyboard-focus-before block ml-sm-fixed border-l border-divider pl-sm-fixed py-sm-fixed rounded-r-ui-fixed-sm hover:bg-linen text-base font-medium font-geist text-text-primary">Mobile app</a><a href="/features/browser-extensions" class="keyboard-focus-before block ml-sm-fixed border-l border-divider pl-sm-fixed py-sm-fixed rounded-r-ui-fixed-sm hover:bg-linen text-base font-medium font-geist text-text-primary">Browser extension</a><a href="/features/admin-management" class="keyboard-focus-before block ml-sm-fixed border-l border-divider pl-sm-fixed py-sm-fixed rounded-r-ui-fixed-sm hover:bg-linen text-base font-medium font-geist text-text-primary">Admin controls</a>
</div>
</div>
</div>
</div>
<div><button type="button" class="keyboard-focus-before [--kb-focus-offset:-1px] flex w-full items-center justify-between border-b pl-lg-fixed mbl:pl-xl-fixed pr-xs-fixed ui-tb:pr-lg-fixed py-xs-fixed mbl:h-16 border-divider type-body-md-fixed font-medium font-geist" aria-expanded="false">Solutions<span class="flex shrink-0 items-center px-md-fixed py-xs-fixed">

Shown with 460 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 925 KB.

Reading view the text a plain-fetch client can extract

title: Meeting Scheduling Software and AI Meeting Tools | Calendly

All the work around meetings, handled.

Product Solutions Resources Pricing Talk to sales Log In Get startedGet started for free My Account Product Products SchedulingSimplified booking CallieBetaAI assistant NotetakerMeeting recaps and action items ContactsRelationship management tools PaymentsFlexible ways to get paid Platform Integrations Security Mobile app Browser extension Admin controls Solutions By business size Individuals Small business Large companies By team Sales Marketing Customer success Recruiting By industry Education Technology Financial Services Professional Services Resources Get started Learning hub Developer docs Product tour Discover Blog Guides & webinars About us What's new Customer stories Newsroom Support Help center Community Contact us Pricing Talk to sales My Account Log In Get started for free Get started for free Talk to sales All the work around meetings, handled. From AI-powered scheduling to automated meeting recaps and follow-ups, get the busywork done with fewer tools and less effort. Sign up with Google Sign up with Microsoft Sign up with email • No credit card required Scheduling Book meetings with the world’s #1 scheduling tool Giving you complete control and total customization, Calendly is the easiest and most powerful way to find time to connect. Learn more Callie Beta Introducing your 24/7 AI scheduling assistant Add Callie to any email

1511 more words follow in the initial HTML.

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

  • H1Found
  • 200 wordsFound
  • llms.txtNote
  • MarkdownMissing
  • Missing pathFound
  • JSON-LDFound
  • OpenAPINote
What a plain fetch found on calendly.com
CheckResultDetail
H1 in the initial HTMLFound one H1First H1: All the work around meetings, handled.
First 200 words in the initial HTMLFound 200 of 200 wordsThe initial HTML carries 1711 words of visible text; the first 200 are marked in the left pane.
llms.txt present and linkedNote present, not linked11913 bytes, 65 links. Structure grade A (6 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 requestMissing 200 text/htmlAccept: text/markdown returned 200 with text/html. The server ignores the header.
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 ImageObject, Organization, WebSite3 schema.org types in JSON-LD blocks on the home page: ImageObject, Organization, 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 calendly.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