Mobile-first indexing
Mobile-first indexing means Google uses the mobile version of your page, crawled with the smartphone Googlebot, for indexing and ranking. The rollout was declared complete in 2023, with the last sites moved in 2024. If something is only on desktop, Google does not see it.
By Théophile Louvart, founder of Porteur · Updated 14 September 2026 · Markdown
What it means for a small site
Your phone layout is the source of truth. Content, links, structured data and metadata must be present on mobile. If they exist only on desktop, they are not used for indexing or ranking.
This decides what Google can match to a query. If your /pricing page shows a feature table only on desktop, and hides it on mobile, Google cannot read that table. You will not rank for “yourproduct pricing tiers” even if the desktop page looks rich.
What Google does not see
- Text, images or links that load only on desktop
- Structured data added only to desktop templates
- Title, meta description or robots tags that differ between desktop and mobile
- Navigation items or footer links missing on mobile
Check a real page. Load yourproduct.com/guides/getting-started on a phone and a laptop. If the H1, intro, internal links, and schema markup differ, Google keeps the mobile version. Fix the mobile one first.
Recommended setup and the m dot case
Responsive design is the recommended setup. One URL serves the same HTML content to all devices, styled with CSS for different viewports. Keep the mobile HTML complete.
If you run separate mobile URLs, for example m.example.com/page, pair them correctly. On the desktop URL, add rel=alternate to the mobile URL. On the mobile URL, add rel=canonical back to the desktop URL. Keep content, links and structured data equivalent on both.
Where it shows in your reports
Search Console shows the mobile crawl first. The Performance report reflects what Google indexed from the mobile version. Filter by Device: Mobile to see clicks and queries from phone users.
The Core Web Vitals reports prioritise mobile field data. If your mobile LCP is slow, the page can lose visibility even if desktop is fast.
How to check a page and fix gaps
Open the mobile page
On your phone, load yourproduct.com/pricing. View source if you can, or use your desktop browser in a small viewport.
Compare key elements
Match H1, intro, main copy, internal links, and any product table with the desktop version. They must exist on mobile.
Check metadata and structured data
Ensure the title, meta description, robots directives and JSON-LD are identical or equivalent on mobile.
Review navigation and links
Make sure header, footer and in-body links present on desktop also appear on mobile. Avoid hiding cross-links behind infinite sliders.
Fix and recheck
Update the mobile template to include the missing parts. When done, monitor the page in Search Console for impressions on the target queries.
A fixed page example: /pricing shows the full feature grid, the same FAQ schema, and the same internal links on both mobile and desktop. The Performance report starts to show impressions for “pricing features” on mobile.
Questions
Yes. Google completed the rollout in 2023, with the last sites moved in 2024. Your mobile version is what gets indexed and used for ranking. Build and test for phone first.
No. Responsive design is recommended. Use a separate mobile domain only if you already have it and can maintain parity. If you do, keep rel=alternate and rel=canonical in place.
There is no fixed time. Google crawls with the smartphone Googlebot when it discovers or revisits your URLs. Help discovery with a clean XML sitemap and internal links. Monitor new pages in Search Console.
Design for phone screens, but keep the same content, links, metadata and structured data as desktop. Do not hide key copy, tables or navigation on mobile. Test performance on mobile networks.
This term is often confused. Here it means Google uses a smartphone crawler to index the mobile version of your web pages. It is not about files indexed on your handset.
Sources
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Read next
- GuideHow to use Google Search Console in ten minutes a week
- GuideThe Search Console performance report, column by column
- GuideThe Core Web Vitals report in Search Console, page group by page group
- GuideCanonical tags: what they do and the mistakes that cost rankings
- GuideAlternate page with proper canonical tag: what Search Console means
- GuideMobile page speed: the version of your site that Google reads
- GlossaryGoogle index
- GuideGoogle is not indexing your site: find the reason in Search Console