Google has crawled with a mobile user agent for years, but these mistakes still quietly cost sites their rankings.
Mobile-first indexing stopped being news years ago, but it's still where we find the most avoidable technical mistakes during audits.
What We Still Find Broken
- Content hidden behind "read more" toggles on mobile that never loads in the DOM.
- Structured data present on desktop templates but missing from the mobile version.
- Lazy-loaded images without proper dimensions, causing layout shift on real devices.
- Mobile navigation that hides internal links search engines rely on to find deeper pages.
If your mobile and desktop templates were built by different teams at different times, this is worth auditing today, not "eventually".
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Category: Technical