Let's Automate Let's Encrypt
HTTPS is a small island of security in this insecure world, and in this day and age, there is absolutely no reason not to have it on every Web site you host. Up until last year, there was just a single last excuse: purchasing certificates was kind of pricey. That probably was not a big deal for enterprises; however, if you routinely host a dozen Web sites, each with multiple subdomains, and have to pay for each certificate out of your own dear pocket—well, that quickly could become a burden.
Now you have no more excuses. Enter Let's Encrypt -- a free Certificate Authority that officially left Beta status in April 2016.