What does this report contain?
Pages that return a 200 status and are valid mobile or AMP alternates of another desktop page.
How can this report be used?
Valid mobile and AMPHTML alternates have a special status - depending on the search engine, they may not be indexable but are still eligible to appear in rankings. Because of this, we exclude them from our regular Non-Indexable Pages reports and put them into this Mobile Alternate report.