I’ve posted this site / cite before. It’s an interesting way to expose how filtration on the “catalog features” of your desired mate changes their availability. In essence you fiddle with common dating app filters and immediately see how many & what percentage of people in the USA meet those filters.
The site is old enough it does not support https. But it also doesn’t ask you for any personal info. So IMO that’s not an obstacle to using the site, despite many browsers choosing to warn you about that.
It is real eye opening how quickly you can restrict yourself to 1 in 10,000 (= 0.01%) people. if you applied those same filters in a real dating app, that suggests that 9,999 of the subscribers of your desired gender are people you’ll never be shown. Becasue you filtered them out a priori. Probably an oops on you.
Caveat:
I doubt their data has any cross correlations included. i.e. If you filter on education level they treat that as one independent dimension. If separately you filter on income level they treat that as one independent dimension. But if you filter on both, the result is excess filtration and a more pessimistic number of hits because IRL education and income have a pretty high correlation. Which their data doesn’t know about.
See also an old thread of mine from 2016: