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.
Frequently asked questions
Which is better, MDN Web Docs or Stack Overflow?
MDN Web Docs scores higher on the SourceScore Index (A 93) vs Stack Overflow (B 74) — a 19-point composite lead across Citation Discipline, Modern Reference, and Citation Velocity. "Better" depends on use case; the per-dimension breakdown below shows where each wins.
Which is more reliable to cite, MDN Web Docs or Stack Overflow?
For citation, MDN Web Docs is the stronger choice — it scores A (93/100) on the SourceScore Index versus Stack Overflow at B (74/100), a 19-point lead in composite citation quality (Citation Discipline, Modern Reference, Citation Velocity). Both can be cited; for higher-stakes references, prefer MDN Web Docs.
How does MDN Web Docs compare to Stack Overflow on citation discipline?
MDN Web Docs scores A 92 on Citation Discipline; Stack Overflow scores B 70. Citation Discipline measures how rigorously each source cites primary references — see the per-dimension rationale below for the breakdown.
What's the SourceScore difference between MDN Web Docs and Stack Overflow?
MDN Web Docs A 93 vs Stack Overflow B 74 on the composite Index. Web-platform reference vs Q&A community — MDN authoritative; Stack Overflow community-resolved.
Why does MDN Web Docs score higher than Stack Overflow?
MDN Web Docs leads by 19 composite points on the SourceScore Index. The rationale section below breaks down where the lead comes from — Citation Discipline, Modern Reference (AI-era fitness), and Citation Velocity. Each dimension is scored from primary methodology criteria.