Microsoft Bing posted a new blog post saying "for XML sitemaps, one of the most critical tags you can include in your sitemap is the "lastmod" tag." And it will become even more critical as Bing is ...

Fabrice Canel from Microsoft said that Microsoft tries to check your site's XML Sitemap file one per day. He said on Twitter "we attempt looking at sitemaps once a day." Fabrice added that "Sitemaps ...

Google and Bing announced jointly that they have increased the file size limit of Sitemaps files from 10MB to 50MB. That means the uncompressed version must now be under 50MB, no longer under 10MB.

Bing Webmaster Tools introduced enhanced sitemap reporting features. The new features help webmasters improve site index coverage and resolve issues. Accurate, up-to-date sitemaps can boost site ...