Hello,
Thank you for contacting Rank Math, and sorry for any inconvenience caused.
Please navigate to Rank Math > Status & Tools > Database Tools > Flush SEO Analysis data

Then run the SEO Analysis again.
If that does not fix the issue, we might need to take a closer look at the settings. Please edit the first post on this ticket and include your WordPress & FTP logins in the designated Sensitive Data section.

It is completely secure and only our support staff has access to that section. If you want, you can use the below plugin to generate a temporary login URL to your website and share that with us instead:
https://wordpress.org/plugins/temporary-login-without-password/
You can use the above plugin in conjunction with the WP Security Audit Log to monitor what changes our staff might make on your website (if any):
https://wordpress.org/plugins/wp-security-audit-log/
We really look forward to helping you.
I followed the steps indicated, but now I change the error:
API ERROR: 400 HTTP error
Hello,
It appears your web server is blocking access to our API.
Please make sure to whitelist the IP 134.90.148.114 and the user-agent RankMathChecker/2.0.0; https://rankmath.com.
If you are not sure, please ask your web hosting provider to do it for you.
Once done, you can run the SEO Analysis once again.
I hope that helps. Thank you, and looking forward to your update.
Great! I have been able to solve the problem, a plugin (stop bad boots), blocked the rankmath api, thanks for the assistance!
rankmath is the best plugin!
Hello,
We are super happy that this issue is already resolved. If you have any other questions in the future, know that we are here to help you.
If you don’t mind us asking, could you please leave us a review (if you haven’t already) on https://wordpress.org/support/plugin/seo-by-rank-math/reviews/#new-post about your overall experience with Rank Math? We appreciate your time and patience.
If you have another question in the future, please feel free to create a new forum topic, and it will be our pleasure to assist you again.
Thank you.