List of free SSL stuff for developerππ½
If you're looking for all programming tools around SSL (not just free). Check this page List of SSL Programming Tools

SSL Server Test
A comprehensive free SSL test for your public web servers (Powered by Qualys SSL Labs)
Tag: SSL

DDOS-Guard
Powerful and complete DDoS Protection for your business. Remote website protection, protected hosting, VDS and more. Instant Activation and 24/7 DDoS Response Team.
Tag: SSL, security
1 Domain Protection, free SSL certificate, Protection up to 1.5 Tbps and 500 Mpps

Cloudflare
Here at Cloudflare, we make the Internet work the way it should. Offering CDN, DNS, DDoS protection and security, find out how we can help your site.
Tag: CDN, SSL, DNS, security
Fast, easy-to-use DNS Free automated SSL certificates Global content delivery network (CDN) Unmetered mitigation of DDoS attacks with up to 67 Tbps capacity Up to 100k Workers requests and 30 scripts 3 Page Rules

Let's Encrypt
Let's Encrypt is a free, automated, and open certificate authority brought to you by the nonprofit Internet Security Research Group (ISRG).
Tag: SSL
automated and open certificate authority