What we check
The public checker library
7 public explainers — what each check verifies, what a failure looks like, and how to fix it. The full executable library runs inside the audit console.
Technical SEO & structured data
Eligibility, markup, and international targeting — the checks that decide whether a page can qualify for rich results and clean language clusters.
Favicon checker
Search surfaces show your icon next to the result. No icon link, no icon — and the failure is always yours to fix, never Google’s.
Show the right icon next to every search result.Article structured-data checker
Rich results start with typed markup. Untyped pages don’t fail loudly — they just never qualify.
Qualify for article rich results with valid typed markup.Breadcrumb structured-data checker
Crumbs in the result tell the searcher where they will land. A broken trail reads as a broken site.
Show a clean breadcrumb trail under the search result.Hreflang checker
One missing x-default fails the page on its own; a lopsided cluster is flagged for human review instead of guessing.
Send each language version to the right searchers.
AI search & agent readiness
How AI crawlers and answer engines read your site: original-source signals, consistent entity names, crawl access, and machine-readable content.
Preferred sources checker
A page that never says “I am the original” leaves the decision to whoever copies it first.
Make clear which page is the original.Site name checker
Three names for one site across three pages reads as three different sites. Pick one and hold it everywhere.
Show one consistent site name across every result.AI crawler policy checker
AI answers can only cite pages their crawlers may fetch and parse. One blocked crawler or one stale render and the citation goes to whoever ships cleaner machine-readable markup.
Stay citable when AI answers pick their sources.
Need the one-line reference? Open the docs table. Want to see which checks a Google update touches? Open the public radar. Browse free SEO tools.