Hreflang href is not absolute

Error severity, in the Hreflang tab

Why it matters

Hreflang annotations must use fully qualified URLs including the scheme and host; relative hrefs are ignored.

How to fix it

Write the full URL (https://example.com/fr/) in every hreflang href.

How Crawlune finds it

Crawlune flags Hreflang href is not absolute 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.