My understanding is that lightningmaps.org is owned/operated by Blitzortung (see the upper right corner of lightningmaps.org).

Could be, I seem to recall some relationship. It was just that blitzortung didn't work right for me. While lightningmaps did. Anyways. That's from years (maybe 10?) ago.

Maybe my browser just got better? Who knows :-)

By working right, I mean whenever I see flickering from afar, or hearing the first rolling of thunder, clicking on it without much fuss, maybe zooming out, shifting a little, zooming back in and seeing what's going on where instantly.

Which in the context of larger storms works even better in kachelmannwetter.com, because there it's embedded in other data, and projected where it moves/arrives in how many minutes in easily understandable symbology. But that's for Germany only. Useless for Colorado. Havn't found something comparable for there, so far. Would be mostly useless anyways, because weather at 2600+ m altitude changes faster. Or can.