I have a sitemap.xml index fine with 3 XML files in it with around 120 pages for indexing. A year passed and I still have 1/3 of it indexed. All the most important pages for indexing are in 1st ...
I have a sitemap-index.xml with 7 files. After updating one of the 7 with new content should I ping Google with the index file or with the updated file? In my index I also use lastmod so Google can ...