Let’s Encrypt makes certs for almost 30% of web domains! RC4/3DES/TLS 1.0 are still used! Certs for hundreds of years! Analyzing hundreds of millions of SSL handshakesLooking at a dataset of 350 million ssl connections inspires some initial questions: who made the certswhat crypto powers itwhat sort of life timeLet’s Encrypt makes certs for almost 30% of web domainsThe server you’re reading this on uses automated certs from Let’s Encrypt—they are more common on a domain than any other registrar! Over 47 million domains are protected with Let’s Encrypt certs, al
