I love "What font?", but you can search for CSS Peper if you want to explore more the structure of a website :)
Safari users: is there an extension that allows you to easily find out the font on a webpage? In Arc/Firefox I use one called Fontanello that reveals this kind of data via a right-click …

What Font is a great choice but unfortunately not available in my country or region. Might have to move back to the US?
You can try an extension called "Fonts Ninja" too. I knew about it only weeks ago
Thank you both! Jedmund is correct. With the introduction of Profiles in the next MacOS, this easy font identification tool and the easy copy-URL shortcut are the last things that could conceivably keep me on Arc, so I’m exploring ..
And it turns out there is now a Fontanello Safari extension … search for "Fontanello Go" in the App Store
I remember something like "What Font?". They used to have a Safari extension and an app for iOS for this kind of stuff.
As a long time Safari user, Extensions are the main reason I switched to Chrome a couple years ago