404 errors detection

Hello @johanhorak,

Thank you for contacting the support.

The Rank Math plugin can not detect the origin of the 404 errors. You would need to check the sources of your traffic and then determine. You can also run a broken link checker on your website using a product like Screamingfrog to determine the broken links on your website.

For the FB group, please open a new support ticket here:
https://support.rankmath.com/

Re-read this post:
https://i.rankmath.com/ELJQ6G
https://www.facebook.com/groups/rankmathseopluginwordpress/permalink/325636771641989/

Hope that helps.