Api key.

Hello,

We apologize for the inconvenience you’re experiencing with your IndexNow API key. It seems that the API key is not showing when you click on “Check Key.”

To resolve this issue, you can try regenerating a new API key by clicking the “Change Key” option in the Instant Indexing settings of Rank Math. After changing the key, clear your website cache and then wait for a few hours before checking if the new key is accessible to search engines.

If the issue persists, please feel free to reply to this ticket, and a human agent from the Rank Math Support team will assist you further.

We appreciate your understanding and patience as we work to resolve this issue for you.

Sources:
How to Use IndexNow With Rank Math » Rank Math
How to Fix 403 Forbidden Error with IndexNow » Rank Math
How to Fix 429 Error with IndexNow API » Rank Math

Hello,

Thank you for contacting Rank Math support and we apologize for the inconvenience.

To help you investigate this issue, we might need to take a closer look at your website and settings. Please follow these steps:

• Edit the first post on this ticket and include your WordPress and FTP logins in the Sensitive Data section. This is a secure section that only our support staff can access.
  
• Make sure you take a complete backup of your website before sharing the information with us.
• If you prefer, you can use this 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 also use this plugin to monitor what changes our staff might make on your website (if any): https://wordpress.org/plugins/wp-security-audit-log/

We appreciate your cooperation and patience. Thank you for choosing Rank Math.

Hello,

Your website’s temporary admin login URL has expired. Can you please renew and extend it to at least 3 days so we can further check the issue and resolve it?

Meanwhile, please try to add the text file manually to your site and see if that works for you: https://rankmath.com/kb/fix-403-forbidden-error-indexnow/#add-txt-file-manually

Let us know how it goes. Looking forward to helping you.

Thank you.

Hello,

Yes please add the text file manually and keep us updated on your progress with this.

We eagerly await your response as we really want to help you resolve this issue on your site.

To ensure you have ample time and support, we’ll keep this support ticket open until your issue is fully resolved.

Please don’t hesitate to get in touch if you have any other questions.

Thank you.