SSL Certificate (identity certificate, digital certificate) is a set of data, that adds a cryptographic key to the domain’s details and allows secure connections from a server to a browser. When installed on a web server, it activates the https protocol and the padlock to protect the user’s data from public access.
Such a certificate is needed, first of all, to protect your personal information, while communicating with banks, payment systems and other organizations working with personal data - to protect transactions and prevent unauthorized access to your banking card details, passwords and other confidential data.
When a certificate is installed on your server, HTTP (application protocol) is changed to HTTPs, where the ‘S’ stands for ‘secure’.
Depending on the type and the browser you are using, you will see a padlock or green bar when you visit a website with SSL Certificate installed.
Usually this contains the following information:
This confirms that the domain belongs to a real company and that its owner has the right to use the private key legally.
Domain Validation - these are entry-level certificates, and are the most common in the world. The issuing speed varies from 2 to 10 minutes, depending on the brand. To obtain such a certificate no special documents are required. These are suitable for small sites and projects, when there is no need for a lot of trust from customers and site visitors.
Business Validation - these certificates are relevant for those who are thinking about trusting their products, companies and services, as the certificate authority performs a more thorough check. It is necessary to send the company documents, go through the process of "calling back" to the corporate phone.
SSL certificates with Extended Validation - only EV certificates will provide the site with a green address bar in the browser. Most often, such certificates can be found at banks, online systems with a large number of visitors.
SSL certificates with subdomain support (Wildcard) is a very convenient certificate when it comes to protecting a large number of subdomains within one domain. It can protect any number of subdomains on an unlimited number of servers.
SAN SSL certificates are single communication certificates that can protect multiple domains, subdomains, local domains and servers. These certificates work with both external and internal domain names.
Without SSL certificate all the information, including your name, login, password, and even banking card details, is transferred from your computer to a remote source is publically available.
SSL certificate is protecting your private data with the help of cryptography, helping you to: