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.
A plain-fetch client does not get the heading: 3 of 6 checks found.
Initial HTML what a plain fetch receives
<!DOCTYPE html>
<html lang="en-gb" class="gellixfont_b4189f5d-module__QJHuHq__variable plusjakarta_d46e3ad1-module__c7zwaW__variable antialiased">
<head>
<meta charSet="utf-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
[... 22 more head elements folded ...]
<title>Domains, Hosting, Websites & Email in One Place | one.com UK
</title>
<meta name="description" content="Everything you need to get your business online: domain, hosting, AI website builder and email. Hosting from £1.99/mo with a free domain for a year."/>
[... 1 more head element folded ...]
<meta name="robots" content="index, follow"/>
<link rel="canonical" href="https://www.one.com/en-gb/"/>
<link rel="alternate" hrefLang="da-dk" href="https://www.one.com/da-dk/"/>
<link rel="alternate" hrefLang="de-de" href="https://www.one.com/de-de/"/>
<link rel="alternate" hrefLang="en-gb" href="https://www.one.com/en-gb/"/>
<link rel="alternate" hrefLang="en-us" href="https://www.one.com/en-us/"/>
<link rel="alternate" hrefLang="es-es" href="https://www.one.com/es-es/"/>
<link rel="alternate" hrefLang="fr-be" href="https://www.one.com/fr-be/"/>
<link rel="alternate" hrefLang="fr-fr" href="https://www.one.com/fr-fr/"/>
<link rel="alternate" hrefLang="it-it" href="https://www.one.com/it-it/"/>
<link rel="alternate" hrefLang="nl-be" href="https://www.one.com/nl-be/"/>
<link rel="alternate" hrefLang="nl-nl" href="https://www.one.com/nl-nl/"/>
<link rel="alternate" hrefLang="nb-no" href="https://www.one.com/nb-no/"/>
<link rel="alternate" hrefLang="pt-pt" href="https://www.one.com/pt-pt/"/>
<link rel="alternate" hrefLang="fi-fi" href="https://www.one.com/fi-fi/"/>
<link rel="alternate" hrefLang="sv-se" href="https://www.one.com/sv-se/"/>
<link rel="alternate" hrefLang="x-default" href="https://www.one.com/en-gb/"/>
[... 8 more head elements folded ...]
</head>
<body class="gravity brand-one-com-rebrand flex min-h-dvh flex-col">
<link rel="stylesheet" href="/shop/dist/onecom-gravity.css"/>
<div class="hello-bar">
<section class="_root_bshb3_3 storefront-accent">
<div class="_bar_bshb3_12">
<div class="_image_bshb3_24"><img alt="black friday 2026 label for the hellobar" loading="lazy" width="347" height="120" decoding="async" data-nimg="1" style="color:transparent;object-position:50% 50%" sizes="112px" srcSet="/_next/image/?url=https%3 [... 1723 characters folded ...]>
</div>
<div class="_text_bshb3_38">
<p class="_paragraph_bshb3_48">Get ready for Black Friday!<!-- --> <span class="whitespace-nowrap"><a href="/en-gb/black-friday/">See offers</a> →</span>
</p>
</div>
</div>
</section>
</div>
<header class="_root_1owr4_9 main-nav">
<nav class="_topBar_1owr4_25" aria-label="Utility navigation">
<div class="_container_1owr4_43" data-sf-nav-container="true">
<div class="_topLeft_1owr4_77"><button type="button" class="_hamburger_1owr4_243" aria-label="Open menu" aria-expanded="false"><span class="_hamburgerIcon_1owr4_266"></span></button>
<div class="_logo_1owr4_90"><a aria-label="one.com" href="/en-gb/">
<svg xmlns="http://www.w3.org/2000/svg" width="127" height="18" fill="none" aria-hidden="true">[... 1,951 characters folded ...]
</svg></a>
</div>
</div>
<div class="_topRight_1owr4_83">
<ul class="_utilityLinks_1owr4_105" role="list">
<li class="_utilityItem_1owr4_113"><a class="_navLink_1owr4_164" href="/en-gb/plans-pricing/">Plans & Pricing</a>
</li>
<li class="_utilityItem_1owr4_113">
<div class="_dropdown_1owr4_156"><button type="button" class="_navLink_1owr4_164" popoverTarget="_R_4p96bsivb_" aria-expanded="false" aria-controls="_R_4p96bsivb_"><span>24/7 support</span>
<svg class="_chevron_1owr4_212" 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"><path d="m6 9 6 6 6-6"></path>
</svg></button>
<div id="_R_4p96bsivb_" popover="auto" class="_popover_1owr4_206">
<div class="_panel_14gk8_24">
<div class="_grid_14gk8_55">
<div class="_column_14gk8_68">
<section class="_section_14gk8_92">
<div class="_sectionTitle_14gk8_96">Get help
</div>
<ul class="_sectionList_14gk8_108">
<li><a class="_tileLink_14gk8_116" href="https://help.one.com/hc/en-us/requests/new" target="_blank" rel="noopener noreferrer">
<article class="_tile_14gk8_116">
<div class="_tileIcon_14gk8_140"><img alt="Chat icon" loading="lazy" width="0" height="0" decoding="async" data-nimg="1" style="color:transparent" src="https://storefront.group-cdn.one/menu/chat.svg"/>
</div>
<div class="_tileBody_14gk8_154">
<div class="_tileTitle_14gk8_164"><span class="_tileTitleText_14gk8_179">Start a chat</span><span class="_tileBadge_14gk8_187"></span>
</div>
<p class="_tileDescription_14gk8_202">The quickest way to get in touch, every day of the year.
</p>
</div>
<svg class="_tileArrow_14gk8_163" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M5 12h14"></path><path d="m12 5 7 7-7 7"></path>
</svg>
</article></a>
</li>
<li><a class="_tileLink_14gk8_116" href="https://help.one.com/hc/en-us/requests/new" target="_blank" rel="noopener noreferrer">
<article class="_tile_14gk8_116">
<div class="_tileIcon_14gk8_140"><img alt="Email Icon" loading="lazy" width="0" height="0" decoding="async" data-nimg="1" style="color:transparent" src="https://storefront.group-cdn.one/menu/email.svg"/>
</div>
<div class="_tileBody_14gk8_154">
<div class="_tileTitle_14gk8_164"><span class="_tileTitleText_14gk8_179">Send us an email</span><span class="_tileBadge_14gk8_187"></span>
</div>
<p class="_tileDescription_14gk8_202">We'll reply as soon as possible – usually within 24 hours.
</p>
</div>
<svg class="_tileArrow_14gk8_163" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M5 12h14"></path><path d="m12 5 7 7-7 7"></path>
</svg>
</article></a>
</li>
</ul>
</section>
</div>
<div class="_column_14gk8_68">
<section class="_section_14gk8_92">
<div class="_sectionTitle_14gk8_96">Guides
</div>
<ul class="_sectionList_14gk8_108">
<li><a class="_tileLink_14gk8_116" href="https://help.one.com/hc/en-us" target="_blank" rel="noopener noreferrer">
<article class="_tile_14gk8_116">
<div class="_tileBody_14gk8_154">
<div class="_tileTitle_14gk8_164"><span class="_tileTitleText_14gk8_179">Helpdesk</span><span class="_tileBadge_14gk8_187"></span>
</div>
<p class="_tileDescription_14gk8_202">Here to help you build, launch and grow – every step of the way.
</p>
</div>
<svg class="_tileArrow_14gk8_163" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M5 12h14"></path><path d="m12 5 7 7-7 7"></path>
</svg>
</article></a>
</li>
<li><a class="_tileLink_14gk8_116" href="/en-gb/academy/">
<article class="_tile_14gk8_116">
<div class="_tileBody_14gk8_154">
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<svg class="_tileArrow_14gk8_163" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M5 12h14"></path><path d="m12 5 7 7-7 7"></path>
</svg>
</article></a>
</li>
</ul>
</section>
</div>
</div>
</div>
</div>
</div>
</li>
<li class="_utilityItem_1owr4_113">
<div class="_dropdown_1owr4_156"><button type="button" class="_navLink_1owr4_164" popoverTarget="_R_6p96bsivb_" aria-expanded="false" aria-controls="_R_6p96bsivb_"><span>Resources</span>
<svg class="_chevron_1owr4_212" 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"><path d="m6 9 6 6 6-6"></path>
</svg></button>
Shown with 447 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 1.4 MB.
Reading view the text a plain-fetch client can extract
title: Domains, Hosting, Websites & Email in One Place | one.com UK
No H1 in the initial HTML
Get ready for Black Friday! See offers → Plans & Pricing 24/7 support Get help Start a chat The quickest way to get in touch, every day of the year. Send us an email We'll reply as soon as possible – usually within 24 hours. Guides Helpdesk Here to help you build, launch and grow – every step of the way. Academy Deep-dive into everything you need to know about domains, hosting, marketing, and website building. Resources Discover one.com News and product updates The latest about one.com and our products. Affiliate program Collaborate with us. About one.com Who we are and what we do. Learn Academy Learn more about building and growing your website. Login Login Control Panel Webmail NEW Aida AI Website Builder Website Builder Online Shop File Manager WordPress Aida WP Builder 0 Aida AI AI Solutions Aida AI Website Builder Build a website by chatting with AI. Rebuild your website with Aida AI Modernise your website in minutes. Business email with Aida AI Get AI-powered business email assistance. Discover more Aida AI @ one.com Learn more about how you can harness the power of Aida AI on one.com Websites Build it yourself with AI Website BuilderAida AI
6658 more words follow in the initial HTML.
| Check | Result | Detail |
|---|---|---|
| H1 in the initial HTML | Missing no H1 | A plain-fetch client finds no page heading in the bytes it receives. |
| First 200 words in the initial HTML | Found 200 of 200 words | The initial HTML carries 6858 words of visible text; the first 200 are marked in the left pane. |
| llms.txt present and linked | Note present, not linked | 3764 bytes, 27 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 | Missing 200 text/html | Accept: text/markdown returned 200 with text/html; charset=utf-8. The server ignores the header. |
| 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 Answer, ContactPoint, FAQPage, Organization and 2 more | 6 schema.org types in JSON-LD blocks on the home page: Answer, ContactPoint, FAQPage, Organization, Question, VideoObject. |
| 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 one.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