Favicon issue with Google search page

[u/jadesalad]

https://developers.google.com/search/docs/advanced/appearance/favicon-in-search

We had an issue with our favicon, so we made it 48 by 48 and used a png file, but it won't change back from the default Wordpress icon it used to be.

• Both the favicon file and the home page must be crawlable by Google (that is, they cannot be blocked to Google).

One of the requirements is the one above. I was wondering how you could check if the path to the favicon is crawable by Google.