Does this check return links?
Yes. The checker opens the variants declared on the starting page and compares each page's hreflang set with the original set, including links back to the starting page.
Free SEO tool
Hreflang checker with return links
Check one page and the language variants it names. See missing return links, inconsistent alternates and page-level SEO signals.
Declared variants only
Check the whole declared hreflang group
A single tag can look correct while the other language page is missing its return link. This checker compares the starting page with every declared variant within the safety limit, without discovering other website pages.
For site-wide language and indexability checks, create a URLMatcher SEO Project.
Does the tool crawl the whole website?
No. It requests the page you enter and at most 40 URLs that page explicitly declares as hreflang variants. New URLs found on those variants are shown as differences and never followed.
Which hreflang formats are checked?
The tool reads HTML link tags and HTTP Link headers. It checks language values, duplicates, self references, return links, HTTP status, redirects, canonical and noindex signals.
What about hreflang in XML sitemaps?
This page-based check does not search sitemap files for hreflang annotations. The Sitemap Finder can list your sitemap URLs; sitemap-only hreflang validation is outside this check.
Check more than one page with URLMatcher
These free tools inspect one URL at a time. Create an SEO Project when you want a complete website audit.