developer.mozilla.org

Classified by Aater · 17 May 2026

developer.mozilla.org is accessible and legible to AI systems, but lacks the authority signals needed for consistent attribution.

capturable
absent
marginal
capturable
emerging
authoritative
How this classification was derived · the three gates
Gate 1 · Reachability
pass

AI systems can access and fetch this domain's content.

Gate 2 · Legibility
present

Content present but not fully structured

Gate 3 · Authority
moderate

Authority signals are insufficient for reliable AI citation.

Primary constraint: Content has high density (0.39) but lacks the minimum required distinct entities or specific data claims.

AI systems can reach developer.mozilla.org but struggle to extract its content.

Recommended next steps
1.Add substantive content to the initial HTML2 hr

Expected impact: Improves Legibility

2.Add author attribution1 hr

Expected impact: Improves Authority

View implementation →
<script type="application/ld+json">
{ "@context":"https://schema.org", "@type":"Article",
  "headline":"Post title",
  "author":{ "@type":"Person", "name":"Author Name", "url":"https://example.com/author" } }
</script>
3.Add Organization schema15 min

Expected impact: Improves Authority

View implementation →
<script type="application/ld+json">
{ "@context":"https://schema.org", "@type":"Organization",
  "name":"Your Company", "url":"https://example.com",
  "logo":"https://example.com/logo.png",
  "sameAs":["https://www.linkedin.com/company/you","https://x.com/you"] }
</script>
Why these recommendations?

Content density is 0.39 against a threshold of 0.3 for Structured classification. The page lacks sufficient specific claims and named entities for AI systems to extract meaningful, attributable information.

Sparse extractable content (41 words) in raw HTML.

No structured data (JSON-LD / schema.org) — machine-readable metadata is absent.

No Organization schema — entity identity is not machine-asserted.

No author attribution — content lacks attributable provenance.

Add publication dates: Retrieval-augmented AI pipelines filter by recency. Undated content is deprioritised in freshness-weighted retrieval.

Additional signal · Entity presence
Does not affect participation state

How the public web recognizes this organization as an entity (knowledge graph). Observational only — a lower bound: absence means “not documented in the knowledge graph,” not “does not exist.”

Recognized as an entity in Wikidata: MDN Web Docs.
English Wikipedia article present.
·No linked YouTube presence.
Linked GitHub presence.
See how developer.mozilla.org compares to a competitor →
Pulse · Live monitoring
This is a snapshot. Pulse is the live feed.

See which AI agents are actually crawling developer.mozilla.orgGPTBot, ClaudeBot, PerplexityBot, Google-Extended, and more — at what frequency and depth. A lightweight snippet reveals the agent activity your logs don't surface.

Pulse can alert you when authority signals improve or new AI agent activity is detected on developer.mozilla.org.

Activate Pulse on developer.mozilla.org

Lightweight install · no performance impact · first agent activity in 24–72h (traffic-dependent)

What AI systems extract from this page →

Server-delivered content the crawler read · first 400 characters

MDN Web Docs Skip to main content Skip to search MDN HTML HTML: Markup language HTML reference Elements Global attributes Attributes See all… HTML guides Responsive images HTML cheatsheet Date &amp; time formats See all… Markup languages SVG MathML XML CSS CSS: Styling language CSS reference Properties Selectors At-rules Values See all… CSS guides Box model Animations Flexbox Colors See all… Layou

Measured 17 May 2026 · 18d ago

This classification reflects Aater's assessment of observable structural signals. It does not represent an editorial opinion about the quality or value of this domain or organisation. Domain owners may request removal by writing to founder@aater.ai. Requests are honoured within 48 hours.