developer.mozilla.org
Readable with gaps. AIs read you, but you lose citations that should be yours.
= unchanged since 2026-08-18
Scanned on 2026-09-10 · Permalink · Scan another domain
Does the AI recommend you?
We asked an AI assistant 3 questions a customer would ask when looking for what you offer, without naming you. This is what it answered with web search enabled:
The assistant named you in 1 of 3 questions.
What's the most comprehensive resource to learn HTML, CSS, and JavaScript from scratch?
● You appear"…dations—all cost nothing to start. The HTML, CSS, and Javascript for Web Developers specialization from Johns Hopkins University on Coursera is highly rated with 4.7 stars from 17,305 reviews. The Web Developer Bootcamp …"
Recommended: MDN Web Docs · Scrimba · freeCodeCamp · The Odin Project · Coursera · The Web Developer Bootcamp
Where can I find reliable documentation and examples for web APIs and web standards?
○ You do not appear"For reliable web API documentation, OpenAPI Specification is the most widely used standard for describing HTTP/REST APIs, with machine- and human-readable formats like YAML or JSON. Tools like Swagger UI, Redoc, and Post…"
Recommended: OpenAPI · Swagger UI · Stripe · Redoc · Postman
Which platform should I use to understand how to build progressive web apps and check browser compatibility?
○ You do not appear"For learning Progressive Web Apps, Google's Learn PWA course breaks down every aspect of modern progressive web app development. Udemy offers basic to advanced courses to help you develop Progressive Web Apps, with Front…"
Recommended: Google Learn PWA · Udemy · Frontend Masters · YouTube · caniuse.com · BrowserStack · Sauce Labs · CrossBrowserTesting
Who appears in your place
Brands the assistant recommended when answering these questions:
BrowserStack · oncecaniuse.com · onceCoursera · onceCrossBrowserTesting · oncefreeCodeCamp · onceFrontend Masters · once
Where the AI reads
The pages the assistant relied on to answer. Being well represented on these sources is the most direct way to get recommended.
Your site is not among the sources it used: today the AI decides without reading you.
a.kabachnik.info
1 answer · cited in 1blog.dreamfactory.com
1 answer · cited in 1blog.pixelfreestudio.com
1 answer · cited in 1classcentral.com
1 answer · cited in 1coursera.org
1 answer · cited in 1+10 more sources, with their pages, in the full report.
What the AI says about your business
We asked it directly. If something is wrong, outdated or missing, look at the source it comes from: that is where it gets fixed.
"MDN Web Docs (Mozilla Developers Network Web Documentations) is an online documentation repository for various web development references and standards. Mozilla Corporation started the project and still funds the servers and staff of its projects. MDN Web Docs is a free-to-use resource that documents open web technologies, though a paid service titled MDN Plus grants the subscriber the ability to use the in-house AI chat, cloud saving, personalized browser compatibility information, and offline viewing. MDN Plus 5 with unlimited access to notifications, collections, and offline support costs $5/month or $50/year, and MDN Supporter 10 costs $10/month or $100/year. MDN is widely recognized as the premier resource for documentation and education on topics like HTML, JavaScript, CSS, HTTP, Web Extensions, Web APIs, Accessibility, and Web Technology. As a newer developer the MDN Docs website is found to be extremely helpful, and will be helpful no matter where you are at in your career."
Answer from an AI assistant, with web search · 2026-10-11
Where it got it from: website.fandom.com · en.wikipedia.org · developer.mozilla.org · xda-developers.com · discover.buysellads.com · medium.com
This is the assistant's answer right now: it changes over time and between assistants. It is not a ranking or a promise. · 2026-10-11
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● Content readable without JavaScript
20/201069 words visible without running JavaScript. Any agent can read you.
● AI crawler access
17/17robots.txt present and no AI crawler is blocked.
○ Structured data (schema.org)
0/15No structured data at all. To a machine your page is text with no declared meaning.
Copy-paste fix
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "Organization",
"name": "MDN Web Docs",
"url": "https://developer.mozilla.org",
"description": "The MDN Web Docs site provides information about Open Web technologies including HTML, CSS, and APIs for both Web sites and progressive web apps."
}
</script>● Semantic structure
12/12Correct hierarchy, language declared (en-US).
● Metadata and identity
10/10Title, description, canonical and Open Graph all in place.
● Performance and access
10/10Responded in 16 ms, 119 KB, HTTPS.
○ llms.txt
0/8No /llms.txt. It is an emerging convention with no proven impact on citations — but adopting it costs nothing and some agents already read it.
● Sitemap
8/8Sitemap declared in robots.txt (https://developer.mozilla.org/sitemap.xml).
Compare against a competitor
Visibility is relative: when an AI recommends, it chooses between you and them.
Your badge, live
Embed it on your site, your signature or your footer: it's a trust seal that shows your AI Visibility Score live and links to your public certificate, where anyone can verify it. It updates itself with every evaluation.
<a href="https://seekinweb.com/cert/developer.mozilla.org"><img src="https://seekinweb.com/badge/developer.mozilla.org.svg" alt="AI Visibility Score — SeekinWeb" height="32"></a>
Is this your site? Verify ownership and get the Verified badge. Verify your site and get the Verified badge →
Your llms.txt, generated
Publish it at the root of your domain as /llms.txt. Edit the descriptions and done: first signal recovered.
# MDN Web Docs > The MDN Web Docs site provides information about Open Web technologies including HTML, CSS, and APIs for both Web sites and progressive web apps. Este archivo sigue la convención llms.txt (https://llmstxt.org): un resumen oficial del sitio para modelos de lenguaje y agentes. ## Secciones principales - [Featured articles](https://developer.mozilla.org/): descripción breve de esta sección - [Latest news](https://developer.mozilla.org/): descripción breve de esta sección - [Recent contributions](https://developer.mozilla.org/): descripción breve de esta sección - [Contributor Spotlight](https://developer.mozilla.org/): descripción breve de esta sección ## Contacto - Sitio: https://developer.mozilla.org - Escríbenos: reemplaza con tu email o formulario de contacto
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