Hello,
We apologize for the issue you are facing with your sitemap. The "General HTTP error" can occur for several reasons, and here are some steps you can take to troubleshoot and potentially resolve the issue:
1. Flush Permalinks
To start, try flushing your permalinks. You can do this by navigating to WordPress Dashboard → Settings → Permalinks. You don’t need to make any changes; just click the Save Changes button.

2. Flush Sitemap Settings
Next, flush the sitemap settings in Rank Math. Go to Rank Math SEO → Sitemap Settings in your WordPress admin area. Change the value in the Links Per Sitemap option (for example, if it is set to 200, change it to 201) and then click Save Changes.

3. Check for Caching Issues
Ensure that your sitemap is not being cached incorrectly. You can refer to our tutorial on how to exclude sitemaps from caching.
4. Check Restrictions from Web Host
If you can access the sitemap directly but external tools cannot, there may be restrictions from your web host or a security plugin. You might need to exclude the sitemap from any firewall settings or contact your web host for assistance.
If these steps do not resolve the issue, please reply to this ticket with your site URL so that a human agent from our support team can assist you further. Thank you for raising this concern!
Sources:
How to Fix "Incorrect HTTP Header Content-Type" Error in Sitemaps » Rank Math
Rank Math Sitemap Issues and Their Fixes » Rank Math
Hello,
Thank you for contacting Rank Math and bringing your concern to our attention. I’m sorry for any inconvenience this issue may have caused you.
Please share your sitemap URL so we can check and validate it. You can add it to the sensitive data section by editing your first post in this ticket.
It is completely secure, and only our support staff has access to that section.
Looking forward to helping 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.