Free SSL/TLS Certificates

Let's Encrypt

Let's Encrypt
How It Works
Technology
letsencrypt

The CA's Role in Fighting Phishing and Malware - Let's Encrypt - Free SSL/TLS Certificates

Rate Limits - Let's Encrypt - Free SSL/TLS Certificates
Staging Environment - Let's Encrypt - Free SSL/TLS Certificates
https://acme-staging-v02.api.letsencrypt.org/directory

The Changelog #243: Let's Encrypt the Web with Jacob Hoffman-Andrews | Changelog

Let's Encrypt Demo - YouTube
Let’s Encrypt Your Docker Dan’s Trial & Errno
Docker, Nginx & Letsencrypt: Easy & Secure Reverse Proxy
How to setup your website for that sweet, sweet HTTPS with Docker, Nginx, and letsencrypt
SSL with Docker Swarm, Let's Encrypt and Nginx
Nginx and Let’s Encrypt with Docker in Less Than 5 Minutes
How To Secure a Containerized Node Application with Let's Encrypt | DigitalOcean
Enabling HTTPS with Let's Encrypt on Docker - BROS - Medium
Generate free SSL certificates with Docker and LetsEncrypt | Tit Petrič
How to Set Up Free SSL Certificates from Let's Encrypt using Docker and Nginx

certbot-docker/certbot-docker: Source files for Certbot's Docker images
JrCs/docker-letsencrypt-nginx-proxy-companion: LetsEncrypt companion container for nginx-proxy
linuxserver/docker-letsencrypt
staticfloat/docker-nginx-certbot: Create and renew website certificates using the Letsencrypt free certificate authority.

Two domains on one droplet with one SSL certificate | DigitalOcean
How To Secure Nginx with Let's Encrypt on Ubuntu 16.04 | DigitalOcean

Let's Encrypt with HAProxy
Let's Encrypt on Raspberry Pi
adventures in haproxy: tcp, tls, https, ssh, openvpn
Setting up HTTPS on Nginx using Let’s Encrypt – Frederik Banke – Medium with Docker and certbot
How to configure Nginx with free Let’s Encrypt SSL certificate on Debian or Ubuntu Linux

Clients

integrating Let's Encrypt client into a private DNS server is cool

ACME Client Implementations - Let's Encrypt

Certbot docs previously letsencrypt/letsencrypt-auto
User Guide — Certbot.documentation
如何免费的让网站启用 HTTPS | | 酷壳 - CoolShell
Complete guide to configure SSL on Nginx with Let's Encrypt (Ubuntu/Centos/RHEL) - LinuxTechLab

diafygi/acme-tiny: A tiny script to issue and renew TLS certs from Let's Encrypt

xenolf/lego: Let's Encrypt client and ACME library written in Go Used in Caddy

Daplie/node-letsencrypt: letsencrypt for node.js
DylanPiercey/auto-sni: Free, automated HTTPS for NodeJS made easy.

acme-client

kelunik/acme-client: Let's Encrypt / ACME client written in PHP for the CLI.

Enabling free SSL on Hostinger shared hosting | Kenrick's Notes
iamshreeram/php-ssl-installer: Installing SSL certificate in hostinger

php bin/acme issue --domains [colon-separated domain names] --path [colon-separated full path to domain root]

acme.sh

acmesh-official/acme.sh: A pure Unix shell script implementing ACME client protocol
LetsEncrypt SSL cert on GoDaddy Shared Hosting with No Root and No nc --deploy, then add cron jobs

acme.sh --issue -d $DOMAIN -w /home/wwwroot/$DOMAIN
# acme.sh --deploy -d example.com --deploy-hook cpanel_uapi
~/.acme.sh/$DOMAIN/$DOMAIN.cer  # cert
~/.acme.sh/$DOMAIN/$DOMAIN.key  # private key

~/.acme.sh/acme.sh --cron --home ~/.acme.sh --force 2>&1 >> ~/.acme.sh/cronlog.txt

Cloudflare

How to Get a FREE SSL Certificate with Hostinger - YouTube

create Cloudflare account
point to a domain with records
enable Let's Encrypt

CloudFlare Protection on Hostinger
For 1 CloudFlare Protection plan, you can only use it for 1 website/domain and all its subdomains as long as the domain/website is pointed to us.
We use Cloudflare’s free plan here at Hostinger. It does provide you with these features:

DDoS attack mitigation
Global Content Delivery Network (CDN)

The main differences between using Cloudflare with Hostinger directly with and Cloudflare.com are:

DNS zone can be fully managed from Hostinger side – so you don’t need to worry about updating DNS Records in different places: all of your domain’s DNS management will be in one place
All main setting of Cloudflare can be found in hPanel – so changing security level will only take a few clicks
One time activation fee – and Cloudflare will secure your domain and all of your subdomains as long as your domain is hosted with us 💜

Heroku

Announcing Heroku Free SSL Beta and Flexible Dyno Hours | Heroku
Let's Encrypt and Heroku [Solved] - Server - Let's Encrypt Community Support
Let's Encrypt with a Rails app on Heroku // Collective Idea | Crafting web and mobile software based in Holland, Michigan
Use Let’s Encrypt TLS certificate on Heroku — Sikachu’s Blog — Medium
SSL Endpoint | Heroku Dev Center
Set up CloudFlare's free SSL on Heroku