Might be cool to do this on domains found on certifacte transparency logs, rather than doing it on domains found on e-mail. Lets encrypt seems to issue about 3M

Might be cool to do this on domains found on certifacte transparency logs, rather than doing it on domains found on e-mail. Lets encrypt seems to issue about 3M certificates a day, so about 100 million a month. Which seems to be one order of magnitude better.