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 ...

Google's Gary Illyes confirmed that Google does indeed check to see if an XML sitemap has a change in it before reprocessing the XML sitemap file. The reason Google does this is because it doesn't ...