Should I resubmit my sitemap through Google Webmasters Tools every time I replace a sitemap.xml with an existing sitemap.xml (i.e.,
www.domain.com/sitemap.xml)? Or does it check it automatically?
Detail explanation: Once a week, I add new articles to my website, and each time after uploading new content, I am replacing my existing sitemap.xml with a newly generated sitemap.xml in my website folder.
So, do you think I need to do the same changes (i.e., again submitting the sitemap.xml) to search engines (e.g., Google, Bing, etc...) and in Google Webmaster Tools also?
Yandex Webmaster Tools says this regarding sitemaps:
Please note: there is no need to delete or add another Sitemap file if it has been modified as the Yandex indexing robot regularly checks for changes.