Metrics
Definitions, calculations and limits for citation rate, mention rate, primary answer rate and more.
Metrics
- Evidence Freshness: Calculation and Review CyclesL2 Reproducible
Evidence freshness is the share of evidence verified within its review cycle, with cycles set by evidence type.
Updated 2026-11-09
Broken evidence rate is the share of evidence links that fail, checked monthly in batches and reviewed by hand.
Updated 2026-11-09
- Primary Source Coverage: Calculation and LimitationsL2 Reproducible
Primary source coverage is the share of source entries pointing to original documents or datasets, counted monthly.
Updated 2026-11-09
- ECI Evidence Chain Integrity: Calculation and LimitationsL2 Reproducible
ECI is the share of sampled claims that pass all six hops, sampled quarterly with the rules published.
Updated 2026-11-09
- Wording Accuracy Rate: Definition, Calculation, and ChecksL2 Reproducible
Wording accuracy rate is the share of mentions whose name, title, and organization match the wording baseline.
Updated 2026-11-09
- Primary Answer Rate: Judgment Method and LimitationsL2 Reproducible
Primary answer rate is the share of questions whose core conclusion comes from this site; judgment is manual and traced.
Updated 2026-11-09
- Mention Rate: Definition, Calculation, and LimitationsL2 Reproducible
Mention rate is the share of questions whose answers name the brand or person, with or without a link; not endorsement.
Updated 2026-11-09
- Citation Rate: Definition, Calculation, and LimitationsL2 Reproducible
Citation rate is the share of questions whose answers link clickably to this site; cited questions over total questions.
Updated 2026-11-09