The ethgrastracker and milkroad are good to use, and I just found out about it after several years in this industry. But the etherscan.io seems not safe to use because it is not private,
which means it is a bit dangerous for exploiters in my opinion.
But anyway, thank you for saying @hugeblack that at least the other people here should know and have an idea regarding these issues regarding tracking fees
in terms of doing transactions with ETH.
Interesting for me why people do need to check on the fees and how much they are currently, if they don't interact that much with the blockchain, that is - it's a metric to use or maybe to be sure of something?