It's an easy-to-use interface for anyone to explore and understand all the Lightning Network features.
On the website Node operators can check a lot of metrics about their node. For example the channel simulators which allows you to see how a potential channels can change the position of your node in the LN. The rebalance simulator can reveal an opportunity or possible red flag, depending on the result.
If you're also all about data then dive with us into the "small world" of node ranking and simulators!" - Jonī Kyasshu