SSl Certificates to Meet Any Need
All HTTP sites are marked Not Secure by Google Chrome. 
How to secure your site
A website can run on HTTPS only by installing SSL certificate on it. The SSL stands for secure socket layer which ensures the private connection between the browser and a web server by encrypting the data transfer. It prevents intruders to steal your data. SSL certificates are issued to the domain, and it encrypts the data transfer with the domain name only. It does not provide encryption to IP addresses. SSL certificate encrypts your site and prevents it from unauthorized access. This is important because the information you send on the Internet is passed from computer to computer to get to the destination server. An SSL Certificate is a bit of code on your Customer's web server that secures online communications. SSL Certificates inspire trust, keep online interactions private and help customers gain the confidence to conduct transactions on a web site.
What is an SSL Certificate?
An SSL Certificate is a digitally signed certificate that establishes the identity of a website and uses encryption to send data to the website. The certificate is issued by a trusted authority known as a Certificate Authority (CA) and typically contains information like the Owner's name, Name of issuer, the certificate holder's public key and an expiration date.
SSL Certificates are generally used when a website wants to accept sensitive information like passwords, credit card details and other sensitive information.
You can view a website's SSL Certificate by clicking on the lock icon in the address bar of a browser.
Difference among different types of SSL certificates:
Comodo SSL and Positive SSL provide security for one Domain Name and are best suited for small websites and blogs.
Positive SSL Wild Card: Positive SSL Wildcard provides security for the primary Domain Name as well as its sub-domains, and is best suited for large e-commerce websites.
EV SSL Certificate: An EV SSL Certificate provides the strongest encryption level available ideally if the website were on transactions like banking and payments, ESSL would be your best bet. It enables the website to present its own verified identity to the visitors. The green address bar provides immediate trust and helps customer conversion.