A cool website for you to check how much is your upvote worth. Not just your upvote you can just type in any username and see full info, such as upvote worth,latest upvotes,latest curation rewards,latest author rewards,latest posts.
This is how the website looks.
Even more you can check how much voting power you have left.
How much is your upvote worth using certain % of upvote.
And much much more.
Try it out and find out what is your upvote price.
