Paste hreflang link tags or Link headers and check duplicates, self-reference, x-default notes and URL format.
Alternates-
Self-reference-
Issues-
Use this audit when international pages have copied hreflang tags from a template and you need a quick sanity check. The tool lists every alternate and highlights mistakes that can break language targeting.
What it checks
The audit flags duplicate hreflang values, missing self-reference for the current URL, suspicious language codes, non-absolute href values, canonical mismatch notes and optional x-default coverage.
What it cannot confirm
It does not crawl reciprocal tags on the other pages. Paste the rendered HTML from each page in the cluster when you need to compare them.