Keep this in mind https://support.google.com/webmasters/answer/183668?hl=en&topic=8476&ctx=topic https://support.google.com/webmasters/answer/183668?hl=en&to...

Keep this in mind https://support.google.com/webmasters/answer/183668?hl=en&topic=8476&ctx=topic https://support.google.com/webmasters/answer/183668?hl=en&to... > Break up large sitemaps into a smaller sitemaps to prevent your server from being overloaded if Google requests your sitemap frequently. A sitemap file can't contain more than 50,000 URLs and must be no larger than 50 MB uncompressed.