Hello,
Thank you for contacting the support and sorry for any inconvenience that might have been caused due to that.
Could you confirm your web server is not blocking access to our API?
Please make sure to whitelist the IP 134.90.148.98 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. Please also provide your website URL.
Hope that helps.
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.