https://www.old.reddit.com/ has an invalid SSL cert but https://old.reddit.com/ is fine
Heads up to MEAN stack user. Since Nov.28, linnovate's MEAN stack source code includes a Google Analytics gtag that's seems real, so people might be unknowingly sending data from their apps to someone. Hopefully either I'm wrong (not super familiar with gtags) or it's a mistake. Here's the relevant commit: https://github.com/linnovate/mean/commit/332c7c0865d354fb688a8bf9c64c98eb065cf5f9#diff-2c19d9859b055d0302043d0fa2833e3f