Hello,
Thank you for contacting us and sorry for any inconvenience that might have been caused due to that.
The “URL is unknown to Google” indicates that Google has not discovered this URL before and has not crawled it yet. You can manually submit the URLs using the GSC URL inspection tool and see if that works for you: https://support.google.com/webmasters/answer/9012289?hl=en
Also, you can remove all the submitted sitemap and after clearing your website cache, please resubmit your sitemap on Google Search Console by following this guideline: https://rankmath.com/kb/submit-sitemap-to-google/
Let us know how it goes. Looking forward to helping you.
I tried it but not working for me
Hello,
Please share some affected page URLs here so that we can check them further for you.
Also, if you’ve already manually requested for indexing, we suggest you allow Google some time to crawl the pages and update the status on your GSC account.
Let us know how it goes. Looking forward to helping you.
Thank you.
Tried everything but not working
Hello,
Please share the affected page or posts that aren’t indexing on the SERP. Also, kindly submit the affected URL/s to your Google Search Console’s URL Inspection tool and share a full screenshot of the report.
Looking forward to helping you.
[moved to sensitive data section]
These are pages not indexed not even crawled and not even discovered
Hello,
The URLs are already included in your sitemap, and your robots.txt rules are fine.
Please run those URLs using the URL inspection tool of your GSC account to know their status.
Once done, share the image of the result so we can check it as well. You can upload screenshots using this tool and add the link here.
Looking forward to helping you.

So basically it shows this when url inspected
https://imgur.com/a/Mwafl0Y
This is the image link, so this is done under url inspection tool manually
Hello,
The status is “URL is unknown to Google”. This indicates that Google has not discovered this URL before and has not been crawled yet.
In this case, you can manually submit the URLs using the GSC URL inspection tool: https://support.google.com/webmasters/answer/9012289?hl=en
Meanwhile, Google assigns a crawl budget to your website depending on these factors (especially these two) and that has a direct effect on how soon or how late your content can get crawled/indexed.
It depends on a lot of factors. Your posting frequency + the domain authority are just two of the many factors Google considers when indexing URLs.
Looking forward to helping 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.