Marketing glossary SEO
Mobile-First Indexing
What is Mobile-First Indexing?
With mobile-first indexing, the mobile crawler and mobile content are primary. Desktop-only content or divergent mobile experiences can hurt visibility.
Example: If mobile pages hide whole paragraphs of body copy that exist on desktop, Google may not index that text for ranking.
Why Mobile-First Indexing matters
Mobile-first indexing matters because Google predominantly uses your mobile experience; hidden or lighter mobile content means lost ranking signals.
How Mobile-First Indexing works in digital marketing
Serve equivalent content on mobile, test parity, ensure tap targets and readable fonts, and avoid interstitials that block content.