Coverage
The share of an intended population for which the system produces a measurable result.
What Coverage means
Excluding failures can improve reported quality while reducing actual coverage.
Where Coverage comes up on this site
- Is Cloudflare blocking AI crawlers on your site?What else changed that got less coverage?
- AI visibility tools compared: what each one measuresTools differ on price, prompt volume and engine coverage.
- What is entity SEO? What machines must resolve to cite youThese are independent counts, not a joint distribution : each row counts sites where that type was found anywhere, so dividing one row by another gives no coverage rate.
- XML sitemap audit: check the file and every URL in itThe schema claimed coverage the sitemap could not back , and the pages are the half a search engine can land on.
- Naming a crawler in robots.txt drops your Disallow rulesIt compared rule text rather than coverage, so it told sites that blocking a crawler completely had broken their rules for that crawler.
Definitions that name Coverage
topical authority · index coverage · Parameter · Top-k · Seed URL · Crawl frequency · Pillar page · Inbound link · Content refresh · Golden dataset · Abstention
Related terms in Measurement and evaluation
How a measurement earns trust: evaluation sets, error rates, calibration, reproducibility, and the biases that make a number look better than it is.
AI answer reading · name confusion · hedged answer · Benchmark · Evaluation set · Golden dataset · Ground truth · Human evaluation · LLM-as-judge · Pairwise evaluation · Pointwise evaluation · Rubric · Inter-rater agreement · Accuracy · F1 score · False positive rate · False negative · True positive · True negative · Calibration · Confidence score · Abstention · Reproducibility · Repeatability · Variance · Confidence interval · Sample size · Sampling bias · Selection bias · Survivorship bias · Data leakage · Test contamination
Questions about Coverage
What is Coverage?
The share of an intended population for which the system produces a measurable result.
Which area of the glossary does Coverage belong to?
Measurement and evaluation: How a measurement earns trust: evaluation sets, error rates, calibration, reproducibility, and the biases that make a number look better than it is.
← Confidence score · Abstention →
See it in the full glossary · 772 terms across 19 areas.
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