Hello,
We apologize for the issue you are facing with your sitemap not updating automatically. Thank you for providing your website URL, as it helps us understand the situation better.
To address the issue of your sitemap not updating, we recommend the following steps:
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Flush the Cache: Navigate to Rank Math SEO → Sitemap Settings and increase the value of Links Per Sitemap by one, then save your settings. After that, go to Settings → Permalinks and click Save Changes to ensure the current settings are applied.


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Exclude the Sitemap From Caching: Ensure that your sitemap is not being cached. You can refer to this article on how to exclude sitemaps from caching.
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Check for Plugin Conflicts: Sometimes, other plugins may interfere with the sitemap functionality. You can use the Health Check plugin to check for any conflicts.
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Submit Your Sitemap Again: After performing these steps, try submitting your sitemap URL to Google Search Console again.
If the issue persists after trying these solutions, please reply to this ticket, and a human agent from our support team will take over and assist you further.
Thank you for your patience, and we look forward to resolving this issue for you!
Sources:
Troubleshooting the “Couldn’t Fetch” Error in Google Search Console » Rank Math
Hello,
Thank you for your query and we are so sorry about the trouble this must have caused.
This sitemap error indicates that there must be some white space before the XML Sitemap’s source code. You can also look at the source code of Sitemap and see if there is any extra line or space before the XML. This is caused by a blank line or space in your wp-config.php
or functions.php
file.
If you’re not able to find any white space then you can try to follow this guideline to fix the issue: https://wejn.org/stuff/wejnswpwhitespacefix.php.html
Once done, please try to clear the Sitemap cache by following this video screencast and see if that works for you: https://i.rankmath.com/pipRDp
However, if you are unable to do this or if the fix does not work, please include your FTP details in the sensitive data section so we can fix this for you.
We look forward to helping you.
Thank you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.