Verified Confidence: high
Primary source found; it says the same thing, the scope matches, and it is reasonably current.
Safe rephrasing
Google announced on October 31, 2023 that its move to mobile-first indexing was complete, so it primarily crawls and indexes the mobile version of pages.
What the source says
Mobile-first indexing has landed - thanks for all your support Tuesday, October 31, 2023 It's been a long road, getting from there to here. We're delighted to announce that the trek to Mobile First Indexing is now complet
Google Search Central — Mobile-first indexing has landed (Oct. 31, 2023)
- Commonly cited as
- "Google now indexes the mobile version of your site"
- True origin
- Google Search Central — Mobile-first indexing has landed (Oct. 31, 2023)
- Type
- Reference fact: A frequently needed number or rule taken directly from a primary source (e.g. Pew, Census, IAB/PwC, FTC), with its as-of date.
- Year
- 2023
- Data as of
- Announcement, Oct. 31, 2023
- Last checked
- Method & sample
- Official Google announcement.
- Drift between quote and source
- Google crawls with a smartphone user agent; content missing from the mobile version may not be indexed
- Interest
- Google describing its own systems.