Hello,
We apologize for the issue you are facing with the SEO Analyzer in Rank Math. It seems that the errors you are encountering may be related to your website being in maintenance mode. The SEO Analyzer requires your site to be live and accessible by our server to perform the analysis correctly.
If your website is hosted locally or is not publicly accessible, you might see an error message indicating that the analysis cannot be performed. Here’s an example of such an error:

To resolve this issue, please ensure that your website is live and not in maintenance mode. Once your site is accessible, you can run the SEO Analyzer again by clicking on the “Start SEO Analyzer” button.
If you continue to experience issues after making your site live, please reply to this ticket with any specific error messages you are seeing, and a human agent from the Rank Math Support team will assist you further.
Thank you for raising this concern!
Sources:
Analyzing Your Site’s SEO with Rank Math’s SEO Analysis Tool
Hello,
Thank you for contacting us and sorry for any inconvenience that might have been caused due to that.
If you’ve already fixed the errors but still showing on SEO Analyzer, please head over to your WordPress Dashboard > Rank Math > Status & Tools > Database Tools and click the Clear SEO Analysis
and Remove Transients
buttons to flush the SEO Analysis cache.

Please clear your website and any server-level caching on your site before doing the SEO analysis again.
If the issue persists, please share your website URL with us so that we can check this further for you.
Let us know how it goes. Looking forward to helping you.
I have flushed the Clear SEO Analysis and Remove Transients buttons but still, these errors are showing.
I request you please give me a suggestion.
ThankYou.
Hello,
Please note that the SEO Analyzer tool scans your website’s live version. So, if your site is currently under maintenance, then those errors will show.
You should use the tool once your site is already live as we mentioned here:
https://rankmath.com/kb/api-http-400-error/#website-under-maintenance
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.