The most common hreflang issues across 374,756 domains

brightonSEO San Diego 2023

A study of 374,756 domains by Ahrefs found 67% of domains have at least one hreflang issue.

This is nearly 10x the size of any previous study.

Patrick will run you through the findings and give more details on which issues break things, and what Google will let you get away with.

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