Separate Mobile Sites
A separate mobile version of a website will generate an additional URL for the site, typically this is m.domain.com and allows the website to be responsive on a mobile device. However, there are a number of issues that can arise when using a separate mobile site. We cover these issues within our SEO Office Hours notes below.
For more about mobile website versions & SEO, check out our additional resources:
Mobile Sites Don’t Need Sitemaps
Separate mobile sites should be canonicalising to the desktop page, so you don’t need to submit them to Google via a Sitemap, but it’s still worth adding to Search Console.
Mobile Sitemaps Are Not for Smartphone Pages
Mobile sitemaps are for feature phone pages only, not smartphone compatible pages. If you have smartphone URLs which are different to the desktop URLs, use a normal XML sitemap with rel=alternate.