Google clarifies doubts about Mobile-First Indexing
Google published a series of tweets clearing up the most common doubts about mobile-first indexing. Check it out:
URLs in search: With Mobile-first indexing, Google indexes the mobile version. When there is a different URL to mobile, Google shows the mobile URL to mobile users, and the desktop URL to desktop users – the indexed content will be the mobile version in both cases.
Crawled counts: The total number of crawled URLs per day generally won’t change. However, the balance will shift from mostly-desktop to mostly-mobile crawls. During a switch-over to mobile-first indexing Google may temporarily crawl more as it reindex everything.
Cached page: Unfortunately, Google is not showing a cached page for many mobile-first indexed sites. This is a bug, not by design, and should get resolved over time. It’s just the UI, it doesn’t affect crawling, indexing, or ranking.
Speed and mobile-first indexing: The mobile speed update in July is independent of mobile-first indexing. Fast sites are awesome for users, especially on mobile, since devices & connections there tend to be slower than with desktops.
Mobile website UIs: Using “hamburger-menus” and “accordions” on mobile websites is fine.
On requirements: Neither mobile-friendliness nor a mobile-responsive layout are requirements for mobile-first indexing. Pages without mobile versions still work on mobile and are usable for indexing. That said, it’s about time to move from desktop-only and embrace mobile 🙂
On ranking: The mobile-first index doesn’t change anything for ranking other than that the mobile content is used. While mobile-friendliness is a ranking factor on mobile, being in the mobile-first index is not.
To learn more about mobile-first indexing: