Hello,
We apologize for the issue you are facing with the SEO Analyzer and the API Error: HTTP 400. Thank you for providing detailed information about your situation. Since you’ve already checked the common causes, here are a few additional steps you can consider:
-
Check for Firewall Settings: Even if your hosting provider has confirmed that the firewall is not blocking the API, it might be worth double-checking that the IP 46.30.211.100
and the user-agent RankMathApi/2.0.2; https://rankmath.com
are whitelisted in your firewall settings.
-
Inspect Server Logs: Look into your server logs for any errors or warnings that might indicate why the API request is failing. This can provide more insight into the issue.
-
Test with a Different Network: If possible, try accessing your website from a different network or device to rule out any local network issues.
-
Plugin Conflicts: Sometimes, other plugins can interfere with Rank Math’s functionality. Try temporarily disabling other plugins to see if that resolves the issue.
-
Update Rank Math: Ensure that you are using the latest version of Rank Math, as updates often include bug fixes and improvements.
If you have gone through these steps and are still experiencing issues, please reply to this ticket, and a human agent from the Rank Math Support team will take over and assist you further.
Thank you for your patience, and we hope to resolve this for you soon!
i have updated RANKMATH
OK
I’LL CHECK SERVERLOG AND PLUGINS
Hello,
Can you please confirm if the IP 46.30.211.100
and the user-agent RankMathApi/2.0.2;
https://rankmath.com
are whitelisted on your firewall?
If so, 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.
Let us know how it goes. Looking forward to helping you.
Thank you.
I have confirmed from the hosting provider and that have found no issues on their side. One more thing if I try to analyze SEO on my website dentalsurgeons.pk using other service provider it is giving results. But this issues seems to be just on RankMath
Hello,
We tested your website with our external SEO Analyzer and are still getting the ‘Invalid server response’.
Please check with your host and share your server & site’s IP addresses so we can check if your site is getting blocked from our end.
Looking forward to helping you.
here is my website dentalsurgeons.pk Shared IP Address: 51.75.150.176
Hello,
That IP address is not from a sanctioned country so the server can access any website hosted on it, however, it’s currently returning an invalid response code, meaning that your server is not letting our crawler reach the website.
You will need to check this with your hosting provider or check in your firewall logs for denied accesses to the website from the user-agent and IP addresses we mentioned above to whitelist them.
Thank you.
Another website of our client draminalamplasticsurgeon.com is also giving same error. Can you please elaborate what should I do? As i did contact The hosting service provider and according to them The problem is not at their server.. What should i do now??
Hello,
That website likely has the same issue.
You need to check the access logs of the server and see what response codes are being sent to the requests from the IP address and user-agent we mentioned before.
Unfortunately, we cannot assist with that since it’s not something we can control. We only try to crawl the website and it always fails with a server error.
Thank you.