What are the SSL Certificates?

An SSL certificate is a digital certificate that verifies a website's identity and enables an encrypted connection. SSL stands for Secure Sockets Layer, a security protocol that creates an encrypted link between a web server and a web browser.

Companies and organizations need to install SSL certificates on their websites to secure online transactions and keep user data private and secure. SSL protects internet connections and prevents criminals from reading or modifying data shared between two systems.

SSL works by ensuring that any data shared between users and websites, or between two systems, remains unreadable to unauthorized parties. It uses encryption algorithms to scramble data in transit, preventing hackers from reading it as it travels over the connection. This data may include sensitive information such as names, addresses, credit card numbers, or other financial details.

How SSL Certificates Work

An SSL certificate serves as a digital credential in the online world. Each SSL certificate uniquely identifies a particular domain and web server. The trust in a certificate is based on confidence in the organization that issued it, known as a Certificate Authority (CA). Established certificate authorities use various methods to verify information provided by individuals or organizations and are recognized and trusted by browser vendors.

Types of SSL Certificates

There are three main types of SSL certificates, each offering different levels of validation and security:

Domain Validated (DV) Certificates

DV certificates only verify domain ownership through a simple process where the CA sends an email to the website's registered email address. No organizational information is verified. These certificates are issued quickly and cost-effectively, making them ideal for basic websites that need encryption without extensive validation requirements.

Organization Validated (OV) Certificates

To obtain an OV certificate, the CA validates specific information including the organization name, physical location, and domain ownership. This process typically takes several days. OV certificates provide a moderate level of trust and are suitable for public-facing websites that handle moderately sensitive transactions.

Extended Validation (EV) Certificates

EV certificates provide the highest level of security and are essential for websites handling highly sensitive data. The CA performs an enhanced review including verification of corporate documents, applicant identity confirmation, and third-party database checks. Users can identify EV certificates by the company name displayed in green in the browser's address bar along with the padlock icon.

SSL Certificate Validation Levels

Conclusion

SSL certificates are essential for website security, providing encryption and identity verification. The choice between DV, OV, and EV certificates depends on your website's security requirements and the level of trust you need to establish with visitors.