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: 5 of 6 checks found.
Initial HTML what a plain fetch receives
<!doctype html>
<!-- Made in Framer · framer.com -->
<!-- Published Nov 6, 2026, 10:50 PM UTC -->
<html lang="en-US">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<meta name="generator" content="Framer fe19a06">
<title>Product Intelligence Platform for the AI Era | Mixpanel
</title>
<link rel="canonical" href="https://mixpanel.com/home/" data-framer-generated-canonical>
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<meta name="description" content="Mixpanel is the product intelligence platform for the AI era, combining analytics, session replay, experiments, feature flags, and AI-powered insights.">
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<meta name="robots" content="max-image-preview:large">
<link rel="alternate" href="https://mixpanel.com/home/" hreflang="en-US" data-framer-generated-hreflang>
<link rel="alternate" href="https://mixpanel.com/ja/home/" hreflang="ja-JP" data-framer-generated-hreflang>
<link rel="alternate" href="https://mixpanel.com/ko/home/" hreflang="ko-KR" data-framer-generated-hreflang>
<link rel="alternate" href="https://mixpanel.com/id/home/" hreflang="id-ID" data-framer-generated-hreflang>
<link rel="alternate" href="https://mixpanel.com/home/" hreflang="x-default" data-framer-generated-hreflang>
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<p class="framer-text framer-styles-preset-buzc6p" data-styles-preset="x9dwz4iaA" dir="auto" style="--framer-text-alignment:left;--framer-text-color:var(--extracted-r6o4lv, var(--token-55659554-cd88-4f13-b2a3-3c96c18c3330, rgb(150, 230, 223)))"><span data-text-fill="true" class="framer-text" style="background-image:linear-gradient(91deg, var(--token-01d89e3a-d0e8-4281-86d9-49a5916819b6, rgb(218, 208, 255)) 0%, var(--token-8112c33d-0521-441e-abaa-5a3b53404976, rgb(169, 147, 255)) 100%)">Agent Intelligence</span>
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<div class="framer-1v5r34g" data-framer-name="👋 New - Text goes here, keep it to around 60 characters." data-framer-component-type="RichTextContainer" style="justify-content:center;--extracted-r6o4lv:var(--token-61930e0 [... 105 characters folded ...]>
<p class="framer-text framer-styles-preset-1y98gsk" data-styles-preset="SIgdd6_vq" dir="auto" style="--framer-text-alignment:left;--framer-text-color:var(--extracted-r6o4lv, var(--token-61930e01-5681-4131-8dc8-84bf4136e86b, rgba(255, 255, 255, 0.7)))">Build agents your customers love — and measure their impact.
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<div class="framer-1tffjvj-container"><!--$--><a class="framer-jt2bf framer-lpl53y framer-v-1oxl8va framer-1o6pwtz" data-framer-name="Sm Dark" data-highlight="true" href="../ai/agent-intelligence" tabindex="0" style="border-bottom-left-radius:100px;border-bottom-rig [... 86 characters folded ...]>
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<p class="framer-text framer-styles-preset-buzc6p" data-styles-preset="x9dwz4iaA" dir="auto" style="--framer-text-alignment:left;--framer-text-color:var(--extracted-r6o4lv, var(--token-55659554-cd88-4f13-b2a3-3c96c18c3330, rgb(150, 230, 223)))"><span data-text-fill="true" class="framer-text" style="background-image:linear-gradient(91deg, var(--token-01d89e3a-d0e8-4281-86d9-49a5916819b6, rgb(218, 208, 255)) 0%, var(--token-8112c33d-0521-441e-abaa-5a3b53404976, rgb(169, 147, 255)) 100%)">Agent Intelligence</span>
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<div class="framer-1v5r34g" data-framer-name="👋 New - Text goes here, keep it to around 60 characters." data-framer-component-type="RichTextContainer" style="justify-content:center;--extracted-r6o4lv:var(--token-61930e0 [... 105 characters folded ...]>
<p class="framer-text framer-styles-preset-uufpav" data-styles-preset="fSLq1LG9i" dir="auto" style="--framer-text-alignment:left;--framer-text-color:var(--extracted-r6o4lv, var(--token-61930e01-5681-4131-8dc8-84bf4136e86b, rgba(255, 255, 255, 0.7)))">Build agents your customers love — and measure their impact.
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<div class="framer-1tffjvj-container"><!--$--><a class="framer-jt2bf framer-lpl53y framer-v-1oxl8va framer-1o6pwtz" data-framer-name="Sm Dark" data-highlight="true" href="../ai/agent-intelligence" tabindex="0" style="border-bottom-left-radius:100px;border-bottom-rig [... 86 characters folded ...]>
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<div class="framer-1e2qj7x"><!--$--><!--$--><a aria-label="Mixpanel logo - linking back to homepage" class="framer-1h6kg8o framer-5a8jqo" data-framer-name="MXP - Main Logo" href="./" data-framer-page-link-current="true">
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<div class="framer-l93rle" data-framer-name="Platform" data-framer-component-type="RichTextContainer" style="--extracted-r6o4lv:var(--token-7232f098-3b4b-4255-a43b-49b617b91f06, rgb(31, 32, 35));--framer-paragraph-spacin [... 141 characters folded ...]>
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Shown with 930 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 1.2 MB.
Reading view the text a plain-fetch client can extract
title: Product Intelligence Platform for the AI Era | Mixpanel
Build like your customers are right beside you
Agent Intelligence Build agents your customers love — and measure their impact. Learn More Agent Intelligence Build agents your customers love — and measure their impact. Learn More Platform Solutions Resources Pricing Select Language English Log In Contact Sales Get Started Free Platform Solutions Resources Pricing Select Language English Log In Contact Sales Get Started Free Select Language English Log In Contact Sales Get Started Free Get Started Free Select Language English Mixpanel is for teams that move. Make your move. Mixpanel is for teams that move. Make your move. Book a Demo Get Started Free Build like your customers are right beside you Build faster, with direction Know exactly what user behavior is trying to tell you. Complete your stack with AI-powered product intelligence. Book a Demo Get Started Free 4.5 / 5.0 score with 1300+ reviews 4.5 / 5.0 score with 1300+ reviews Mixpanel AI Analytics Session Replay Experiments Metric Trees Mixpanel AI Get from data to decision at AI speed Agents monitor your product continuously, surface insights before you think to ask, and tell your team exactly what to do next. Explore Mixpanel AI AI Data Governance Make decisions confidently. Context Engine and Verified Mode ensure all
1554 more words follow in the initial HTML.
| Check | Result | Detail |
|---|---|---|
| H1 in the initial HTML | Found one H1 | First H1: Build like your customers are right beside you |
| First 200 words in the initial HTML | Found 200 of 200 words | The initial HTML carries 1754 words of visible text; the first 200 are marked in the left pane. |
| llms.txt present and linked | Note present, not linked | 1880 bytes, 13 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 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 ContactPoint, ImageObject, Offer, Organization and 4 more | 8 schema.org types in JSON-LD blocks on the home page: ContactPoint, ImageObject, Offer, Organization, Person, PostalAddress, SoftwareApplication, WebSite. |
| OpenAPI link | Note none on the home page | No 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 mixpanel.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