All the URLs of my WordPress site can be visited via a browser such as FireFox and Chrome successfully. However, today I receive emails from Google Ads informing me that some URLs contain errors. The error code is an HTTP error: 403.
So I doubt that it is possible that some URLs are accessible via the browser, but not accessible by Google Robot? If so, is there a way to find or test these URLs?
My site uses WordPress, there are some redirections in the URL, I also remove the category from the permalink. Can all this be the cause of the problem?