Show HN: Sslnotify.me, a free serverless opensource SSL cert monitoring service (alexanderfortin.tumblr.com)

Hello, I've posted about my experiment here not because I think is particularly cool nor useful, but because I'd love to have some feedback from everybody interested in FaaS/Serverless, especially from who has some real experience building solutions with FaaS and willing to share his/her insights. Thanks for your time