- Focus on having "same content" on Mobile VS Desktop
- Same meta robots
- No interaction based lazyload
- Resources must be crawlable
- Same structured data on both versions
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- Same meta tags [title, description]
- High Quality images
- Persistant images URLs
- Same alt text for mobile/Desktop images
- Use supported video formats
- Don't put the video in the bottom of the page
2/4
- Mobile version shouldn't give an error
- No fragment URLs for Mobile
- No one for many mobile URL
- Verify both versions on Search Console
- Same robots.txt file
- Correct Canonical and Hreflang implementation
3/4
Check to new updated doc here developers.google.com/search/mobile-… [French one stills not yet updated] #SEO 4/4
Old version 10/12/2019 : web.archive.org/web/2019121009…
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