Looking at a couple entries, there seems to be a lot of pop culture injected into the entries. I would not use it for anything serious, just some cursory info about a god.

Check out Esoterica if you haven’t already. He does a great job explaining a lot of different religious history.

Never heard of it before, but I took a look and it seems like there’s a lot of interesting information there.

I’m no expert, so I can’t speak for accuracy, but it looks like a good place to start learning about the less “popular” mythologies.