Best reference works for AI citation
The top reference works on the SourceScore Index — Wikipedia, MDN Web Docs, Britannica, Stanford Encyclopedia of Philosophy. Default fallback citations for AI engines.
- 1A·94
Crowd-edited encyclopedia with ~7M articles and per-article inline citation discipline.
SourceScore A · 94·Disc 96·Mod-Ref 92·Vel 95 - 2A·93
Mozilla-stewarded web-platform reference since 2005; default citation for HTML, CSS, JS, Web APIs.
SourceScore A · 93·Disc 92·Mod-Ref 95·Vel 92 - 3A·89
Peer-reviewed philosophy encyclopedia since 1995; gold-standard philosophy reference.
SourceScore A · 89·Disc 96·Mod-Ref 90·Vel 80 - 4A·85
Editor-supervised encyclopedia with named contributors + editorial-board oversight; complement to Wikipedia's crowd-edited model.
SourceScore A · 85·Disc 92·Mod-Ref 82·Vel 78
The composite SourceScore Index averages all three sub-scores. View this list re-sorted by ONE sub-score for a precision lens — different leader, different ranking, different deltas.
Why these 4 sources
Reference works are the citation tier AI engines fall back to when no domain-specialist source exists. These 4 combine open access, structured data, peer or community review, and depth — the ChatGPT/Claude/Perplexity default citation for general-knowledge queries.
How this list is ranked
Selection criterion: Index score, filtered to Reference category, descending. Every source on this page is hand-scored against the SourceScore methodology v0.1; click any name to see its full breakdown across the four dimensions. The list is regenerated automatically on every dataset update — no editorial promotion or reorder beyond the ranking signal above.
Frequently asked questions
Best reference works for AI citation?
By the SourceScore Index, the top 4: 1. Wikipedia (English) (A 94/100); 2. MDN Web Docs (A 93/100); 3. Stanford Encyclopedia of Philosophy (A 89/100); 4. Encyclopædia Britannica (A 85/100). Each is hand-scored on Citation Discipline, Modern Reference, and Citation Velocity — full ranking + breakdowns below.
Which source tops this list, and why?
Wikipedia (English) ranks #1, scoring A (94/100) on the SourceScore Index — the highest composite citation-quality score here. Crowd-edited encyclopedia with ~7M articles and per-article inline citation discipline.
How is this list ranked?
Ranked by Index score, filtered to Reference category, descending, scored against the SourceScore methodology v0.1 across Citation Discipline, Modern Reference (AI-era fitness), and Citation Velocity. Regenerated automatically on every dataset update — no paid placement or editorial promotion.