Understanding Index Coverage
How we calculate. Index coverage % = (indexed ÷ submitted or known URLs) × 100. The form uses the same arithmetic as the worked examples on this page. See our methodology and accuracy policy.
Real-world scenario: A typical Index Coverage case uses indexed pages 4200 and total known / submitted pages 5000. Enter the same figures below to reproduce the worked path.
What is Index Coverage?
A technical SEO health signal. Low coverage can mean noindex, canonical conflicts, crawl budget issues, or quality exclusions.
- Define the denominator (sitemap URLs vs Discovery)
- Valid indexed ≠ ranking
- Investigate exclusions in Search Console
The Formula
Worked Example
Common Use Cases
- Site migrations: track re-indexing
- Large catalogs: crawl/index health
- QA launches: confirm new sections indexed
Pro Tips
- Split by template type
- Fix soft 404s and duplicates first
- Don’t force-index thin URLs
Limitations: Index Coverage results are educational SEO planning aids—not guarantees of rankings or traffic. Search algorithms and attribution models vary.
FAQ
Submitted vs discovered?
Pick one denominator and stick to it for trends.
100% coverage required?
Not always—some URLs should stay noindex (filters, thank-you pages).
Authoritative References
For search and analytics guidance, consult:
- Google Search Central — crawling, indexing, and ranking documentation
- W3C — web standards that affect crawlable HTML
- Google Analytics Help — engagement and traffic metrics