My sitemap contains 50,000 URLs / 7.8 MB and the following URL syntax:
https://www.ninjogos.com.br/resultados?pesquisa=vestido, maquiagem, 2019-10-03T17:12:01-03:00 1.00
The problems are:
• The search console reports that the sitemap could not be read.
• Sitemap loading takes 1 hour and Chrome stops working.
• In Firefox, the sitemap was downloaded in 1483 ms and fully loaded after 5 minutes.
Things that I have done without success:
• Disable GZip compression.
• Delete my .htaccess file;
• Create a test sitemap with 1 KB URLs and the same syntax, and send it to Search Console. However, the sitemap with 50 KB URLs still displays "" that no sitemap can be retrieved.
• An attempt was made to directly check the URL, but an error occurred and you are asked to try again later while the 1KB URLs worked.
• An attempt was made to validate the sitemap on five different websites (YANDEX, ETC), and all worked without error / warning