Google Updates Mobile First Indexing Best Practices

[engine]

Google has updated its Mobile First documentation with more on mobile vs desktop, such as structured data on both, same robots instructions, both being crawlable.

We made some significant updates to our developers documentation on mobile-first indexing

[twitter.com...]

Read the Best Practices Guide here.

[developers.google.com...]

[JorgeV]

Hello-

Mobile URL has anchor fragment error

What caused the issue: The mobile URL includes an anchor fragment; Google can't index URLs that include fragments.

Make sure that your mobile version doesn’t have fragment URLs. The fragment part of the URL is the end of the URL that starts with #. Most of the time, fragment URLs are not indexable, these pages will be missing from the index after your domain is enabled for mobile-first indexing.

I am confused about the above.

So it means that if there is a link to page a page.html#section_2, page.html will not be indexed? (excepting if there is a link to page.html without the anchor fragment elsewhere?

[lucy24]

Google can't index URLs that include fragments.

But, but, but, that’s simply

:: delay while groping for correct word ::

factually incorrect. Google often sends people directly to an anchor, like pagename.html#specific-thing-you-asked-about (or, in my case, more often booktitle/#page123 where their search string happens to occur on page 123).

[JorgeV]

Hello-

May be Google referres to hash-bang ? which by the way, was a proposition of Google itself.

[lammert]

This part of the google document refers only to the mobile page, if you serve separate URLs for mobile and desktop use. Desktop only pages, and responsive pages that display on both desktop and mobile are not restricted by the fragmented URL limitation.