No, currently it is not real time. In future we plan to implement a socket which will let you analyze in real time. The lightning network itself is being updated continuously, it is live.
The private node is the one which has chosen not to broadcast its IP outside. Actually, we will make a few tweaks to explicitly show whether the node is public or not, and show the closed channels as well.
Upd. Nodes GEO stats has been added:
https://lightblock.me/lightning-network-stats/countries-chartThanks for your response! Yeah, the value of the information would be much, much higher just be enabling real-time (or at least minutes of delay) information.
Really would like info on closed channels - duration they were open and amount (I don't suppose they'll show volume as well?)
GEO chart = awesome! Just strange I didn't find any private nodes listed. As suspected, not much Chinese support for Lightning (those 5 could even be from Hong Kong and Taiwan otherwise), equal to the nodes from Singapore in fact. A few other surprises... and almost half in N America alone. Five dropped out too.
We have already started to indicate whether the channel is active or closed (it can have some minor glitches though, working on it). We have also added the "channel age".