MDN Web Docs vs Stack Overflow
Web-platform reference vs Q&A community — MDN authoritative; Stack Overflow community-resolved.
MDN Web Docs
Mozilla-stewarded web-platform reference since 2005; default citation for HTML, CSS, JS, Web APIs.
Stack Overflow
Q&A platform for software engineers since 2008; community-voted answers with content moderation.
Head-to-head — all four dimensions
| Dimension | MDN Web Docs | Stack Overflow | Lead |
|---|---|---|---|
SourceScore Index Composite | A·93 | B·74 | MDN+19 |
Citation Discipline How rigorously cited | A·92 | B·70 | MDN+22 |
Modern Reference AI-era fitness | A+·95 | A·86 | MDN+9 |
Citation Velocity Cited per week | A·92 | B·78 | MDN+14 |
Why these scores
Citation Discipline
Community-edited + reviewed by Mozilla maintainers; cross-checked against W3C/WHATWG standards.
Community moderation + voting; quality varies per answer; corrections via edit history.
Modern Reference
Open-source content (CC-BY-SA + MIT for examples); GitHub-tracked; full structured data.
Open-data + APIs + bulk dumps; among the most LLM-cited sources for technical content.
Citation Velocity
Default web-platform citation in dev press + AI-engine retrieval for web-tech queries.
Cited daily by tech queries + AI engines; default for code questions.