AFAIU this is a fork of caniuse.com; the features it tracks are probably a strict subset of those. The feature definitions seem to be maintained manually, at h

AFAIU this is a fork of caniuse.com; the features it tracks are probably a strict subset of those. The feature definitions seem to be maintained manually, at https://github.com/hteumeuleu/caniemail/tree/master/_features; https://github.com/hteumeuleu/caniemail/tree/master/_feature... assuming it follows the caniuse.com community model, information about supported browsers is similarly crowdsourced.