Hreflang missing return link

Error severity, in the Hreflang tab

Why it matters

Hreflang must be reciprocal; a target page that does not link back invalidates the pair.

How to fix it

Add matching hreflang entries on every page in the set.

How Crawlune finds it

Crawlune flags Hreflang missing return link automatically on every crawl and lists the affected URLs under the Hreflang tab, where you can filter, inspect each page and export the list to CSV. The free version crawls up to 550 URLs with every check enabled.