Free SSL from Lets Encrypt
SSL (Secure Sockets Layer) is a technology which provides a secure encrypted link between browser and web host. In other words no one can see or intercept data transferred between you and the server. As a practical example, no one can see your password or username while transferring this data to the server. Sites which are encrypted with ssl start with https:// (Like this site)
SSL used to be expensive and not affordable for small websites and used to be difficult to setup.
Lets Encrypt is changing all of this. Let’s Encrypt is a free, automated, and open Certificate Authority. They are supported by many web hosts.
Different forms of SSL
There are many different SSL certificates available.
Namely Extended Validation, where they go through a very thorough process validating many things before this type of certificate can be issued.
Organization Validation (OV) SSL Certificates, which has a less thorough vetting procedure as Extended Validation.
Domain Validation (DV) SSL Certificates: where the CA authority only checks if you have the right to mange the domain name.
Lets Encrypt uses the Domain Validation method which is good enough for most websites.
Some advantages of using (free) SSL certificates (https:// sites)
It gives more trust to your visitors, as it gives more privacy and the connection is encrypted and secured.
Google starts favoring websites with https:// meaning they will move up in search ranking, from 2017.
Chrome will start to Label Some HTTP Sites ‘Not Secure’ in 2017, which might put visitors of to visit your site