XML sitemaps just turned 18 in June, and in honor of its full-fledged introduction into adulthood, I’m breaking down how XML sitemaps work, how to build one, and why XML sitemaps offer a boatload of ...

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 ...

Google's John Mueller spoke a bit more about when you should update the date in the lastmod tag in the XML sitemap file. He said on Twitter if you are "providing something new for search engines that ...

Confused about whether you need XML or image sitemaps and how important they are to Google? Gain a better understanding in this Ask An SEO column. As Google’s search results have increasingly become ...