Hello, we apologize for the inconvenience you’re experiencing with the incorrect HTTP header content-type error. This issue occurs when the server expects an XML sitemap during validation but receives a response of a different content type, such as HTML.
To resolve this issue, please follow these steps:
-
Flush Permalinks: Navigate to WordPress Dashboard → Settings → Permalinks and click the Save Changes button without making any changes to the permalink settings.
-
Flush Sitemap Settings: Go to Rank Math SEO → Sitemap Settings inside your WordPress admin area, change the value in the Links Per Sitemap, and click the Save Changes button at the bottom of the page.
If the issue persists after following these steps, please check if your sitemap is being cached and exclude it from caching. You can also check for any restrictions from your web host that might be causing this issue.
If you need further assistance, please reply to this ticket, and a human agent from the Rank Math Support team will assist you further.
Sources:
How to Fix “Incorrect HTTP Header Content-Type” Error in Sitemaps » Rank Math
Rank Math Sitemap Issues and Their Fixes » Rank Math
Indexed, Not Submitted in Sitemap – Google Search Console » Rank Math
This is an automated reply from Rank Math Support Bot. If you need further assistance, please reply to this topic and a human support agent will reply to you shortly.
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.
