API Error: HTTP 400 error.

Hello,

We apologize for the issue you are facing with the API Error: HTTP 400. This error indicates that the server is unable to process your API request due to a client error. Here are some common reasons and potential fixes:

1. Website Under Maintenance: Ensure your website is not in maintenance mode. If it is, switch it back to normal mode.
   

2. Check Website Status: Verify that your website is returning a 200 status code. You can check the status of your website here.
   

3. API Timeout: If your website takes more than 30 seconds to load, this could cause a timeout error.

4. API Requests Blocked by Firewall: Your server’s firewall may be blocking our API requests. You may need to whitelist the IP 46.30.211.100 and the user-agent RankMathApi/2.0.2; https://rankmath.com.

5. Locally Hosted Website: The SEO Analyzer module will only work on a live site that returns a 200 OK status when crawled from an external site. If your site is hosted locally, the SEO Analyzer will not function properly.
   

If you have already tried these solutions and are still experiencing the issue, please reply to this ticket with your website URL so we can assist you further. A human agent from our support team will take over and provide more specific help.

Thank you for raising this concern!

Sources:
Why Am I Getting "API Error: HTTP 400" Error » Rank Math
Why Am I Getting "API Error: HTTP 400" Error » Rank Math

Hello,

Can you please confirm if the IP 46.30.211.100 and the user-agent RankMathApi/2.0.7; 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.

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.

Thank you.