SourceScore
Reference

Encyclopædia Britannica

britannica.com

Editor-supervised encyclopedia with named contributors + editorial-board oversight; complement to Wikipedia's crowd-edited model.

SourceScore Index
A·85Rank #53 of 130 · top 41%Composite weighted across Discipline, Modern Reference, and Velocity.

A — high editorial-board discipline; lower velocity than Wikipedia (the AI-engine default).

Should you cite Encyclopædia Britannica?

At grade A (85/100), Encyclopædia Britannica ranks among the most citable sources for AI-era retrieval and research.

Strongest for
tracing claims back to primary references — its highest dimension is Citation Discipline (92/100).
No major weak spot
Even its lowest dimension, Citation Velocity, scores 78/100.
Bottom line
Cite freely as a primary source.
Compare Encyclopædia Britannica with
Citation Discipline
A·92

Editor-supervised; named expert contributors; editorial-board fact-check; corrections logged.

About this sub-score →
Modern Reference
B·82

Schema-rich; metered paywall partially limits LLM corpus inclusion; structured-data first-class.

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Citation Velocity
B·78

Cited often as second-opinion to Wikipedia; trusted in journalism + research; lower volume than wire news.

About this sub-score →

Signals behind these scores

Citation Discipline

A·92
  • Editorial board
    Subject-area editors review every entry.
  • Named contributors
    Articles signed by experts with credentials disclosed.

Modern Reference

B·82
  • Subscription metering
    Some articles paywalled; partial corpus availability.

Citation Velocity

B·78
  • Second-opinion role
    Frequently cited when Wikipedia is questioned for a specific claim.

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APA
SourceScore (v0.1). (2026). Encyclopædia Britannica: SourceScore Index 85 (A). Retrieved from https://sourcescore.org/source/britannica/

Encyclopædia Britannica appears in 2 canonical SourceScore comparisons — each scored on Discipline, Modern Reference, and Velocity with a quote-ready verdict and JSON twin.

5 sources at Encyclopædia Britannica's tier

See peer group →

Auto-computed nearest-neighbor sources by composite SourceScore distance — discover at-tier peers across all categories, with inline dim deltas surfacing who beats Encyclopædia Britannica on Discipline, Modern Reference, and Velocity.

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Frequently asked questions

Is Encyclopædia Britannica a reliable source to cite?

Encyclopædia Britannica scores A (85/100) on the SourceScore Index, which rates how citable a source is for AI-era and research use. At grade A, Encyclopædia Britannica ranks among the most citable sources for AI-era retrieval and research. The grade combines Citation Discipline 92/100, Modern Reference 82/100, and Citation Velocity 78/100 — full breakdown above.

What is Encyclopædia Britannica's SourceScore?

Encyclopædia Britannica (britannica.com) scores 85/100 (Grade A) on the composite SourceScore Index. Sub-scores: Citation Discipline 92/100, Modern Reference (AI-era fitness) 82/100, Citation Velocity 78/100. Verified 2026-04-28.

How does SourceScore evaluate Encyclopædia Britannica?

Encyclopædia Britannica is scored across three dimensions on the SourceScore Index methodology: Citation Discipline (how rigorously the source cites primary references), Modern Reference (fitness for AI-era retrieval), and Citation Velocity (how often the source is cited per week). Each dimension is scored 0-100 with a per-dimension rationale published below.

Why does Encyclopædia Britannica score A?

A — high editorial-board discipline; lower velocity than Wikipedia (the AI-engine default).

What is Encyclopædia Britannica?

Editor-supervised encyclopedia with named contributors + editorial-board oversight; complement to Wikipedia's crowd-edited model. Category: Reference. Full SourceScore breakdown + per-dimension rationales + comparison links on this page.