Grade AR-170Technical

Mobile first

Google uses the mobile version of a site's content, crawled with the smartphone agent, for indexing and ranking. If the mobile page carries less content than the desktop page, Google recommends making its primary content equivalent, since what is missing on mobile is not what Google indexes.

Sources

1
Google Search Central · 2025Mobile site and mobile-first indexing best practicesdevelopers.google.com

AGrade A: official documentation or a standard. A grade describes the provenance of the sources above; it is not a probability that a change will work. The effect basis says how the size of the effect is known: measured by a study, taken from an industry report, only documented without a size, or not quantified.

Put this evidence to work

Investigate overlapping pages and canonical signals

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