FREE TOOL · DETERMINISTIC · BOUNDED FETCH

See whether your URL variants agree on one canonical.

We fetch the URL you pasted plus its HTTPS, www/apex, and trailing-slash variants, record each hop, and compare the chain to the live canonical tag. Current-state only.

No account. One bounded check — never the full crawl or a site-wide score.

WHAT YOU GET

ILLUSTRATIVE

HTTPS, host, and slash converge — canonical matches

as_submitted · 301 http://www.example.com/blog → 200 https://example.com/blog/

www_swap · 301 http://example.com/blog → 200 https://example.com/blog/

canonical · https://example.com/blog/

What this check actually measures

Search engines pick one address for a page. Sites often publish four: HTTP and HTTPS, www and apex, slash and no-slash. This check fetches the URL you pasted, then the HTTPS/HTTP swap, the www/apex swap, and the trailing-slash swap. Each hop is recorded. The canonical tag is read from the submitted URL's final document and compared to those endings. It does not preview titles, descriptions, or social cards.

The failure modes, and what each one means

Variants that do not converge
www and apex both returning 200 with different documents is two URLs, not one. Pick a host and redirect the other. The same applies to trailing slashes.
A missing or relative canonical
A relative href cannot be compared to the final URL. An absent tag leaves crawlers to guess. Fix: an absolute URL that matches the address you want indexed.
A chain we could not finish
A redirect loop, a private host, or a budget cut-off is a measurement failure for that variant, not proof the other variants are clean. Rows that still completed stay in the matrix.

Why it matters for search — and for AI answers

Split variants dilute crawl budget and can leave the canonical tag pointing at an address that never becomes the document. Answer engines that fetch your page inherit the same split: they may store the URL they requested, not the one you meant. This check reports the live chain. It does not claim a ranking or citation effect.

This is one slice of what the full TrustGrowth Score measures

This tool follows a handful of URL variants once. The TrustGrowth Score tracks indexation, crawl issues, and whether the pages you publish stay fetchable on a schedule — with the evidence kept.

Convinced? It takes one URL.

TRY ANOTHER CHECK

Check my schema → Build JSON-LD → Build sameAs JSON-LD → Preview my listing → Check crawler access → Create my llms.txt → Compose my robots.txt → See the AI read → Check trust signals → Ask three engines → Convert this page → Grade my llms.txt →
Browse all free tools The full version lives in Search Visibility →