Several days in a row I have decreased payments from Nanopool on ZEC.
I was wondering why it is so, and try to find statistics about mined blocks by pool by dates.
But I didn't find any.
There were just tables with records and charts by time. And I can't group it into dates.
So I made this tool for myself:
https://poolstats.orgAnd I noticed that on 18th - 20th June Nanopool had less mined blocks then on 15th-17th June.
That was the problem

Probably my tool will be useful for someone else.
Feel free to tell, what pools statistics/comparison do you need and I'll try to add it if I can.