What is SSL Certificate and types of SSL Certificates?

What is SSL Certificate and types of SSL Certificates
What is SSL Certificate and types of SSL Certificates

In this Post we will discuss What is SSL Certificate, and Different Types of SSL Certificates, and How to Identify SSL on a Website. SSL is an essential part of the modern web. There are different types of SSL Certificates that you can choose from for your Website. SSL is beneficial to increase the authenticity of a website and its trust.

What is SSL Certificate?

SSL stands for Security Socket Layer. SSL uses advanced Technologies that encrypt the data which gets transferred between User and Website. It ensures that malicious third parties or hackers can’t modify the data sent or received by you.

When accessing a website, it sents the data in the form of packets, and if SSL not implemented, then that packet can be modified by someone in between. So it’s essential to visit sites that have SSL enabled.


How SSL Works ?

So let’s understand the working of an SSL and Non-SSL enabled Website and how it can impact us.

  • Website Without SSL Certificate

Website Without SSL Certificate

  1. So here in this case Firstly User visits a website and requests the data from that Website
  2. On accepting that request, the Website Server sents the requested data in the form of Packets to the User.
  3. If someone has access to your system or someone is doing network sniffing on you, then he can modify the packets sent by the webserver.
  4. The User receives the modified packets, which could be harmful and malicious for his system.

So in the above illustration, we understood how a website with no SSL Certificate could be harmful to our system. Let’s now understand the working of an SSL Certificate enabled Website.

  • A website with SSL Certificate

Website With SSL Certificate

  1. So here in this User visits a website and request data from that Website.
  2. On accepting that request, the Website Server sents the requested data in the form of Packets, which are encrypted by the Security Socket Layer.
  3. So, in this case, even if someone is network sniffing on you or having access to your system, he cannot modify the packet sent by the webserver as its encrypted and not easy to decrypt.
  4. The User receives precisely the same packet, which was initially sent by the website server.

So with the above illustration, we can see that an SSL Certificate is very beneficial for the Website as well as for the users visiting it. It creates trust between the Website and the users.


How to Identify whether a Website has SSL or not?

It’s easy to identify whether a Website has SSL or not; if you see on the URL bar, you will see a Lock Icon on all those sites where SSL is enabled. See the below image on clicking that Lock Icon you can easily identify that it’s a secured website.

How to Identify whether a Website has SSL or not


In a Non-SSL Website, you won’t see a Lock instead of it; you will see a Not Secure Message on Clicking the I Button.

Non-SSL Website in Chrome

In Mozilla Firefox, you will see the lock with a cross over it, and it shows that connection is not secure.

Non-SSL Website in Firefox


Protect Yourself with VPN Read More :- What is VPN? Advantages and Disadvantages of VPN


Different Types of SSL Certificates

Before we go any further, its perfect time to discuss different types of SSL Certificates and their usage. So all of the SSL Certificates have an equal level of encryption; however, they are different based on the validation level, which we are going to discuss further.

So let’s firstly understand what exactly a validation level is, and on what basis It is performed. So in basic terms, Validation Level is the number of checks performed by a Certificate Authority to verify the identity of the domain owner or the organization that owns the domain.

The number of Checks a Certificate Authority performs completely depend on the type of Website you own and the number of checks it requires to run such a website, so if you own a website which deals in payments like payment gateways or eCommerce sites etc.. than the number of checks will be higher in such cases.


Types of SSL Validations:-

Depending on your Website Size and its Category, you will have to decide to go for one of the listed SSL Validation process to include SSL on your Website.

  1. DV SSL (Domain Validated SSL)

This SSL validation is pretty easy and can be attained with ease. In this validation Certificate authority verifies that you have access to the Website.
In this validation Certificate Authority do not verify the person or organization that runs the Website.

This type of SSL can easily be obtained, and it gets approved within a day, it’s the easiest and cheapest form of SSL Validation which gives you SSL on your Website.

However, in this Validation, as Certificate Authority doesn’t perform any checks on the website owner or its organization, so users can’t find who runs or owns the Website.

  1. OV SSL (Organization Validated Certificate)

In this Validation Certificate Authority verifies the identity of the individual or the organization running the Website.
This Certificate is considered more trustworthy as Users can see who owns the Website, making it an ideal choice for eCommerce websites.

However, this Validation takes some time as Certificate Authority does a proper check of Individual or Organization owning the Website, which is time taking and thus could take several days to get it approved.

  1. EV SSL (Extended Validation Certificate)

This is the highest level of SSL Certificate you can obtain. In this Validation Certificate Authority do extensive checks on the organization owning the Website and also ensures its legality and physical locations.

It gives the most trust to the users as the number of checks on this Validation are pretty high.
This SSL is quite expensive compared to other too options, and as the Validation is extensive, so it could take up to weeks to get it verified.

This kind of SSL is ideal for Payment Gateways and other sectors related to payments like banks, etc..


Read More About TLS and SSL at Wikipedia:- https://en.wikipedia.org/wiki/Transport_Layer_Security