Heads up - IIRC ADSB-exchange was sold out, an alternative might be adsb.fi

Regardless you can send your ADS-B data to all of them - ADSB-exchange, adsb.fi, flightradar, flightaware, etc.

That way you get all of the benefits and contribute community data.

aiui there was some kerfuffle over adsb.fi DNS ownership - I think https://airplanes.live is where the OSS community gravitated.

Ah I've been out of the loop - thanks for correcting me!

The ADS-B Exchange situation is more complicated than it "was sold out," and there are valid reasons for not wanting to use them–but it is still the most comprehensive source of uncensored flight tracking data.

If you share your data with these sites, they usually give you premium access for free.

https://www.flightradar24.com/premium

I share ADS-B data, how do I activate my free Business plan subscription?

Please sign up for a free Basic account using the following link using the same email address with which you registered your feed. Once your feed is live, your complimentary Business subscription will be activated.