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·85Composite weighted across Discipline, Modern Reference, and Velocity.

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

Citation Discipline
A·92

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

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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.

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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/

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