sitemap white screen with www

Both URLs contain same URLs (non-www version). You should submit sitemap on GSC (first create non-www property if it doesn’t exist).

Second URL (www) is valid sitemap and you will see XML content if you click on view source. More details – https://www.ads-software.com/support/topic/sitemap-empty-on-www-url-version-unsafe-attempt-to-load-url-error/

@mohaelattar In regards to the sitemap appearing as blank, we recommend you contact your hosting provider and ask them to review the server settings that might prevent the stylesheet from loading correctly as sometimes this file gets blocked by .htaccess prevention of the wp-content directory.

?As the server caching the sitemap page can also be another possible issue causing the blank sitemap, we would recommend that if you have a cache plugin or server side cache, please flush the cache. If the issue remains, please disable and re-enable the sitemap feature to force a cache reset. Most cache plugins allow you to exclude the sitemap URLs from being cached and/or minified and we would recommend implementing this for the sitemap to prevent any future caching issues.

We also have additional information in regards to excluding the sitemaps from being included in the server cache at the following link: https://kb.yoast.com/kb/exclude-sitemaps-from-cache/ and also an article outlining the most frequent causes of a sitemap page displaying blank here: https://kb.yoast.com/kb/my-sitemap-is-blank-what-s-wrong/#blank

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Thanks for understanding!