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: 2 of 6 checks found.
Initial HTML what a plain fetch receives
<!doctype html>
<html lang="es-es">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=2.0"/>
[... 3 more head elements folded ...]
<title>El Tiempo</title>
<meta name="description" content="El Tiempo de hoy en España y el mundo. Previsión del tiempo para hoy, mañana y los próximos días. El Tiempo en 200.000 ciudades." />
[... 4 more head elements folded ...]
<link rel="canonical" href="https://www.eltiempo.es"/>
<link rel="alternate" href="https://www.eltiempo.es" hreflang="es-es" />
<link rel="alternate" href="https://ca.eltiempo.es" hreflang="ca" />
<link rel="alternate" href="https://eus.eltiempo.es" hreflang="eu" />
<link rel="alternate" href="https://gal.eltiempo.es" hreflang="gl" />
<link rel="alternate" href="https://de.eltiempo.es" hreflang="de" />
<link rel="alternate" href="https://en.eltiempo.es" hreflang="en" />
<link rel="alternate" href="https://fr.eltiempo.es" hreflang="fr" />
<link rel="alternate" href="https://it.eltiempo.es" hreflang="it" />
<link rel="alternate" href="https://www.clima.com" hreflang="es" />
<link rel="alternate" href="https://www.otempo.pt" hreflang="pt-pt" />
<link rel="alternate" href="https://www.climadobrasil.com.br" hreflang="pt-br" />
[... 57 more head elements folded ...]
</head>
<body id="userStatus" class="bg bg_general elt page-index">
<div id="consentPayOrchestrator" hidden></div>
<!-- Begin Comscore Tag -->
<script type="didomi/javascript" data-vendor="iab:77">[... 456 characters folded ...]</script>
<!-- End Comscore Tag -->
<div id="div-gpt-ad-tk"></div>
<div id="div-gpt-ad-pts"></div>
<div id="div-gpt-ad-ist"></div>
<div id="sticky-box-container">
<div id="sticky-banner" class="sticky-banner gtm-content-sticky" role="complementary" aria-label="Publicidad" style="bottom: -130px"
data-key-values='{"page_language":"es","body_id":"index","ab_testing_variant":"default"}' >
<div class="sticky-container">
<a id="sticky-close" aria-label="Close Sticky" href="#" class="close-button gtm-button-sticky-closeIcon"><i
class="icon icon-xs icon-close"></i></a>
<div id="div-box-sticky"></div>
</div>
</div>
</div>
<div class="hot-topics-container" role="navigation" aria-label="Meteorología & Sostenibilidad">
<div class="container-row hot-topics">
<div class="row-content mb-0 gx-0 pre-list">
<div class="desk col-lg-3 ">
<div class="hot-title-content">
<span class="hot-title text-roboto-condensed-bold">Meteorología & Sostenibilidad</span>
<span class="hot-title-division"></span>
<span class="hot-title-subtitle text-roboto-condensed">Es noticia:</span>
</div>
</div>
<div class=" col-lg-9 ">
<div class="container-list text-roboto-condensed">
<ul class="list">
<li>
<a class="gtm-header-hottopics-1" data-prevision-mario-picazo-highlighted
href="https://www.eltiempo.es/noticias/mario-picazo-llega-una-borrasc [... 88 characters folded ...]>
Previsión Mario Picazo
</a>
</li>
<li>
<a class="gtm-header-hottopics-2" data-borrasca-bruna-highlighted
href="https://www.eltiempo.es/noticias/un-gran-borrasca-atlantica-y-un-rio-atmosferico-llega-mucha-lluvia-a-espana"
>
Borrasca Bruna
</a>
</li>
<li>
<a class="gtm-header-hottopics-3" data-llegan-lluvias-highlighted
href="https://www.eltiempo.es/noticias/estas-son-las-zonas-que-podrian-recibi [... 86 characters folded ...]>
Llegan lluvias
</a>
</li>
<li>
<a class="gtm-header-hottopics-4" data-proxima-semana-highlighted
href="https://www.eltiempo.es/noticias/tendencias-proxima-semana-las-puertas-del-atlantico-se-abren-a-las-lluvias"
>
Próxima semana
</a>
</li>
<li>
<a class="gtm-header-hottopics-5" data-efecto-fujiwhara-highlighted
href="https://www.eltiempo.es/noticias/efecto-fujiwara-fin-de-semana-y-como-se-producira-en-esta-borrasca"
>
Efecto Fujiwhara
</a>
</li>
<li>
<a class="gtm-header-hottopics-6" data-vortice-polar-highlighted
href="https://www.eltiempo.es/noticias/que-esta-ocurriendo-vortice-polar"
>
Vórtice polar
</a>
</li>
</ul>
<div class="container-icon"><i class="icon hidden icon-chevron-right gtm-header-hottopics-next"></i></div>
</div>
</div>
</div>
</div>
</div>
<header id="header" data-lang="es-es">
<div class="navbar-container">
<nav id="navbar" class="container-row gtm-header-bar" aria-label="Menu">
<div class='navbar row-content'>
<div class='col-2 col-md-3'>
<h1 id="navbarLogo" class="navbar-logo">
<a href="/"
class=" gtm-header-logo">
<img src="https://cdn.eltiempo.es/images/content/eltiempo-mobile.svg"
width="32"
height="32"
clas [... 101 characters folded ...]>
<img fetchpriority="high" src="https://cdn.eltiempo.es/images/content/logo2x.svg"
width="142"
height="48"
[... 113 characters folded ...]>
</a>
</h1>
</div>
<div class='col-8 col-md-7' id="search">
<Search site-tmp="aa4ebf076f78cb8c56873c96aaf6f7c1c68474e112223ab109c408d3d1a27129" site-api-url="https://api.eltiempo.es/api/v2/" site-recaptcha-key="6Lfjv-AqAAAAA [... 3836 characters folded ...]></Search>
</div>
<div class='col-2 hamburger-container'>
<button id="headerHamburgerMenu" class="hamburger gtm-header-menu-open"
aria-label="Menu"></button>
</div>
</div>
Shown with 35 long blocks (scripts, styles, long tags) folded into a marker that says how many characters they hide; the pane stops after the first 200 words; the page is 241 KB.
Reading view the text a plain-fetch client can extract
title: El Tiempo
No H1 in the initial HTML
Meteorología & Sostenibilidad Es noticia: Previsión Mario Picazo Borrasca Bruna Llegan lluvias Próxima semana Efecto Fujiwhara Vórtice polar Previsión POR TIPO DE MAPA Lluvia y nieve Temperatura Presión Radar Nubes Viento Satélite POR ZONAS GEOGRÁFICAS Playas Costas POR REGIONES Mundo España CCAA, provincias e islas PRINCIPALES CIUDADES Madrid Málaga Barcelona Santander Sevilla Bilbao Granada Pamplona Valencia Córdoba Zaragoza Gijón Salud ambiental Calidad del aire Polen Gripe Actividades Deportes náuticos Esquí Embalses Listado de embalses Noticias Portada Meteorología Eclipse Astronomía Sostenibilidad Cambio climático Vida saludable Tiempo libre Escapadas Mascotas Avisos Avisos oficiales AEMET Servicios Pelmorex API Weather Pelmorex España Widget ElTiempo.es Otros productos Descarga nuestra app Meteopedia climática Contáctanos Escríbenos Añádenos Legal Aviso legal Política de cookies Política de privacidad © Eltiempo.es, Pelmorex Corp. 2026 Hay 6 avisos naranjas y 73 avisos amarillos Hoy 08 nov. Ahora 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Mañana 09 nov. 00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Martes 10 nov. 00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Miércoles 11
127 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 327 words of visible text; the first 200 are marked in the left pane. |
| llms.txt present and linked | Note present, not linked | 9287 bytes, 0 links. Structure grade D (3 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 | Missing none | No 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 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 eltiempo.es.
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