John Mueller: hreflang is the most complex part of SEO

On Twitter, Google’s John Mueller said that hreflang is one of the most complex aspects of SEO.

The hreflang tag is for websites with content in multiple languages. For example, a page might be available in English and German. The hreflang tag can help you to make sure that Google shows the German version of the page to German visitors.

How to check your hreflang tags

Among many other things, the website audit tool in SEOprofiler also checks the hreflang attributes on your web pages. You can also specify an Accept-Language header in the website audit tool.

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Tom Cassy

Tom Cassy is the CEO of SEOprofiler. He blogs about search engine optimization and website marketing topics at “”.