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 ...

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 ...

Gary Illyes has recently been pretty active in the StackOverflow forums and just posted in a Stack Overflow thread that Google, and other search engines, mostly ignore the lastmod tag found within XML ...