// SEO
Mobile-First Indexing: What It Means for Your Website
Google indexes the mobile version of your site first. What this means for your content, structured data, and technical setup.
What mobile-first indexing means
Google switched to mobile-first indexing in 2019 and completed the migration for all sites in 2024. Googlebot now uses the mobile version of your pages as its primary crawl — the version it indexes and uses to determine rankings for all searches, including desktop searches.
If your mobile site has less content, fewer structured data markups, or worse performance than your desktop site, you're being indexed and ranked on an inferior version.
Common mobile-first indexing problems
Content hidden on mobile behind 'read more' buttons — this content is still indexed but may carry less weight. Lazy-loaded images not loading for Googlebot — old scroll-based lazy loading often fails to trigger for Googlebot.
- Mobile has same content as desktop (not truncated)
- Structured data identical on both versions
- Meta robots tags not blocking Googlebot on mobile
- Images load (lazy loading compatible with Googlebot)
- No interstitials blocking content on mobile
Checking your mobile-first status
Google Search Console > Settings > Crawling shows your crawl status and confirms mobile-first indexing is active. The URL Inspection tool shows which version Googlebot last crawled.
WebEnture's Mobile UX Agent analyzes your site's mobile experience — content parity, tap targets, viewport configuration, and performance — flagging issues that affect both UX and mobile-first indexing.