Google Mobile-First Indexing (2018)
Google uses the mobile version of a page for indexing and ranking.
DateMar 26, 2018 (rollout began)
PlatformGoogle SEO
TypeIndexing
Who it affectsAll sites
What happened
Google began moving sites to mobile-first indexing in March 2018, using the mobile version of a page for indexing and ranking. The migration took several years, and Google now crawls and indexes sites primarily with its smartphone crawler.
Who it affected
All sites.
What it means for marketers today
If content, links or structured data are missing on mobile, Google may not see them. Use the mobile-first indexing checklist.