Since 29 Sep 2014 cloudflare introduced Free SSL certificate for any web using their services.
It’s a great deal, you don’t have to buy a SSL certificate anymore, you will improve security for your customers, site will load faster in modern sites, and you may benefit from SEO as google announced.
With cloudflare you will get a super nice tool to manage your DNS, get Free CDN, prevent attacks and many more for free.
If you want to do it at your wordpress site as I did follow the nice instructions prepared here.
Also read this blog post about SEO list of todos if you decide to move to SSL.
Read more about SSL and cloudflare.
Universal SSL: How It Scales
The little extra that comes with Universal SSL
DNSSEC: An Introduction