Hello,
Thank you for contacting us and sorry for any inconvenience that might have been caused due to that.
Please make sure to whitelist the IP 193.138.6.5 and the user-agent RankMathAPI/2.0.0; https://rankmath.com.
You can do this in the firewall or ask your web hosting provider to help you further.
Here’s a URL you can follow to fix this issue: https://rankmath.com/kb/api-http-400-error/
Let us know how it goes.
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.
