I think it can be useful to have more information of the website already from the list/card view.
I have made an example with icons describing whether the site uses email and DB.
In addition, I added the icon linking directly to the site:
![List View](https://i.postimg.cc/XvwBWSzS/websites-list-suggestion.png)
![Card View](https://i.postimg.cc/Wzfh82hr/websites-card-suggestion.png)
Finally, I would find the possibility of sorting the sites by size very useful.