Understanding SSL Certificates: Why They Matter and How to Install Them

Securing your website starts with encryption. An SSL certificate does exactly that. It locks data in transit and builds trust with visitors. In this guide you’ll learn:

The three main types of SSL certificates
The parts that make up a certificate
A simple, layperson definition
How to obtain and install one

Let’s dive in.

What Are the 3 Types of SSL Certificates?

Websites can pick from three levels of validation:

Domain Validated (DV)
You prove control over your domain.
Issuance takes minutes.
Organization Validated (OV)
You prove your business identity too.
Browsers display your organization name.
Extended Validation (EV)
You undergo the strictest checks.
Browsers show a green padlock and organization info.

Each type adds a layer of confidence for your visitors.
Which level of validation fits your site needs?

What Are the Parts of an SSL Certificate?

Behind that padlock icon you’ll find:

Public Key
Shared with everyone.
Private Key
Kept secret on your server.
Certificate Authority Signature
Proof a trusted CA issued it.
Subject Information
Domain name, organization details.
Validity Period
“Not Before” and “Not After” dates.

These elements work together to encrypt data and confirm identity.
Did you know each certificate holds these details securely?

What Is an SSL Certificate in Layman Terms?

Imagine you’re sending a secret letter through the post.
You slip it into an unbreakable envelope only you and the recipient can open.
That envelope is an SSL certificate.

It:

Locks data you send on your site
Lets visitors know your site is authentic
Shows a padlock icon in their browser

How much does your site rely on secure data?

How Do You Use an SSL Certificate?

Follow these steps to get your site padlock-ready:

Choose Your Certificate
Decide on DV, OV, or EV based on your needs.
Generate a CSR (Certificate Signing Request)
Create a key pair and CSR from your server or control panel.
Register Your Certificate
Submit the CSR to a CA.
Or simply Register SSL Certificate.
Validate Your Domain or Organization
Follow CA instructions—email, DNS record, or paperwork.
Download and Install
Grab your certificate files and private key.
Upload them via your hosting dashboard or server console.
Test Your Setup
Visit your site with “https://”
Look for the padlock icon.

If you haven’t picked a domain yet, start with Domain registration.
Need hosting with free SSL? Check Get Free SSL with Every Hosting.

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