Looking through the Vaccine Ingredient Calculator (VaxCalc) user registration logs this morning, I noticed something strange. Yesterday, we had a good number of signups, yet all the non-confirmed email addresses are from Yahoo email user accounts. Why?
I found a very good article on how to do add SSL via Lets Encrypt to WordPress running in Amazon Lightsail. You can also use this if you’re using EC2. (Should the article ever disappear, it is archived here.)