Wednesday, July 22, 2020
Mobile-first indexing has been an ongoing effort of Google for several years. We've enabled mobile-first indexing for most currently crawled sites, and enabled it by default for all the new sites. Our initial plan was to enable mobile-first indexing for all sites in Search in September 2020. We realize that in these uncertain times, it's not always easy to focus on work as otherwise, so we've decided to extend the timeframe to the end of March 2021. At that time, we're planning on switching our indexing over to mobile-first indexing.
For the sites that are not yet ready for mobile-first indexing, we've already mentioned some issues blocking your sites in previous blog posts. Now that we've done more testing and evaluation, we have seen a few more issues that are worth mentioning to better prepare your sites.
Make sure Googlebot can see your content
In mobile-first indexing, we will only get the information of your site from the mobile version, so make sure Googlebot can see the full content and all resources there. Here are some things to pay attention to:
Robots meta tags on mobile version
You should use the same robots meta tags on the
mobile version as those on the desktop version. If you use a different one on the mobile version
(such as noindex or nofollow)