Get a free SSL certificate from Let's Encrypt online and get the code with one click

1. SSL For Free
Free, private, and secure.

2. Get HTTPS for free
Source code: https://github.com/diafygi/gethttpsforfree
Free, private, secure, recommended.

In addition to the above two online acquisitions, you can also do it yourself on a vps or server.

1. Get the world's shortest, smallest, and smartest pure Shell, Let's encrypt, with one click
No reliance on official clients,
No dependency on Python,
Implement ACME protocol directly through shell scripts.
Pure shell, fully automated to get Let's encrypt

2. letsencrypt.sh
Source code and installation: https://github.com/lukas2511/letsencrypt.sh

The above are all installed under Linux, the following is the installation under Windows IIS:

letsencrypt-win-simple: Simple.