Hello,
We’re sorry to hear that you’re experiencing issues with the Instant Indexing feature and that your posts are not appearing in Google searches as expected. The error you’re encountering, “Error submitting page to IndexNow,” is likely due to a 429 response code, indicating too many requests.
To troubleshoot this issue, we recommend checking if there are any settings that might be causing the 429 error. You can refer to our knowledgebase article on How to Fix 429 Error with IndexNow API for detailed steps on troubleshooting and fixing this error.
If you’re still facing issues after following the steps in the knowledgebase article, please feel free to reach out to our support team directly from here. Our team is here to help you with any further assistance you may need.
We appreciate your understanding and patience as we work to resolve this issue for you.
Sources:
How to Fix Failed to Submit Post to the Bing URL Submission API Error » Rank Math
How to Fix “Crawled – Currently Not Indexed” Error in Google Search Console » Rank Math
How to Fix 429 Error with IndexNow API » Rank Math
Making the Most of the Analytics in Rank Math
Hello,
Thank you for contacting us and sorry for any inconvenience that might have been caused due to that.
When you see a 429 error it means that the IP address of your website is sending too many requests to the API.
Also, that error suggests that you are exhausting the quota limit for the number of publishing requests per day.
Can you please confirm if you have selected the Auto-Submit Post Types? If yes, the post will be automatically sent to the IndexNow API when a post is published, updated, or trashed.
However, if you have other websites on the same server or are on shared hosting, There’s a possibility that other websites may be using up the quota.
For some initial troubleshooting, you can change the API key and clear your website cache. Then wait for a few hours and try submitting another URL again.
Regarding the indexing issue on Google, we’ve searched your website on Google with the site:
operator and we can see about 173 results are coming from your site:

However, if your latest posts are not getting indexed on Google then you suggest you check your Google Search Console coverage section to determine any issues reported on your site: https://support.artlogic.net/hc/en-gb/articles/360016851260-Google-Search-Console-errors-and-coverage-issues
You can share the error message or take a screenshot using this tool and add the link here so we can check as well.
Looking forward to helping you.
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.