I created a new github repo with a script to check the heights and versions of configurable nodes. You can add your own nodes, public Nodes, seed nodes, whatever you want. It will check those nodes with an api call (node must allow api calls) for their current blockheight and the installed lisk version.
The results are show in a nice way with the colors green for ok and red for not ok. (kudos to tharude!)
It is very useful to see if the own nodes are synced, on top height and if the network/other nodes are forked
Feel free to use it, add the nodes you want, improve it. Ping me if you have any question or suggestion about it.
And if you manage to make it faster (non-blocking / parallel), please let me know, I would appreciate it very much
Here the link:https://github.com/simonmorgenthaler/Lisk-heightChecker
And a screenshot:
Lisk to the MOOON!