Google's John Mueller was asked if it is helps after doing a big URL migration to keep the old XML Sitemap file up for a bit. John said "the effect would be minimal" by using this strategy. The theory ...

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 ...

大家都知道，在发布一个新网站的时候，最好配合一个最基本的XML Sitemap以更好的被搜索引擎索引。但其实对于小网站来说没啥必要，今天Google的John Mueller就在 Google Webmaster Help 里回答了大家的疑虑： 要看网站的规模大小，你不是非要有一个sitemap文件，我们也会 ...