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As I wrote, a criteria was: "Web-based (no Apps)". I don't really like mobile apps for this. I think most of them don't offer easy batch imports so you have to enter every trade manually which is even more painful on a mobile device. Also there is not that much space for a good overview.
However I am currently using Blockfolio to keep track of the prices, but not for the performance of my portfolio.

Whoops missed that part lol!

No problem, at least you read and upvoted this. Seems to be very hard to get content visible here.