I haven't used these services, but asbhub [dot] com doesn't appear to be serving anything and has an invalid cert, and opensky-network [dot] com doesn't resolve

I haven't used these services, but asbhub [dot] com doesn't appear to be serving anything and has an invalid cert, and opensky-network [dot] com doesn't resolve for me. Are they https://www.adsbhub.org/ https://www.adsbhub.org/ and https://opensky-network.org/ https://opensky-network.org/ instead?