CrawlCheck
Glossary · Measurement and evidence

cohort asymmetry

The gap between how many sites look clean today and how many were broken at least once during a window.

What cohort asymmetry does not show

A single crawl at any budget can only produce the first number.

Related terms in Measurement and evidence

The vocabulary for saying how strongly something is known.

technographic data · read equivalence · content-change clock · self-claim ledger · agent task canary · revocation delta · signed verdict · hash-prefix lookup · k-anonymity · publication floor · data snapshot · evidence level · false positive · denominator note · percentile rank · population baseline · self-audit invariant · unscored measurement · dated series · change receipt · regression · finding age · graded through a wall · self-audit · placeholder in record · fetcher disagreement · own-host loop · score version · row review · double-counted defect · cosmetic row · gated row · log file analysis · AI referral attribution · finding fingerprint · finding state · headroom · fix list · render gap · lab data · Lighthouse · RUM · LCP · CLS · INP · topicality · intent coverage · canary · citation rate · presence rate · answer stability

Questions about cohort asymmetry

What is cohort asymmetry?

The gap between how many sites look clean today and how many were broken at least once during a window.

What does cohort asymmetry not show or guarantee?

A single crawl at any budget can only produce the first number.

Which area of the glossary does cohort asymmetry belong to?

Measurement and evidence: The vocabulary for saying how strongly something is known.

← population baseline  ·  self-audit invariant →

See it in the full glossary · 772 terms across 19 areas.

Free browser extension

See this on any site you visit, in one click.

CrawlCheck for Chrome grades every site you visit A–F and shows, from your own browser, what search engines and AI assistants are actually served. Free, no account.