How to Install an SSL Certificate (Step by Step)

SSL installation varies between hosting platforms, but the underlying workflow is consistent: request the certificate, complete validation, install the issued certificate and verify the live HTTPS configuration.

1. Confirm the hostname and certificate type

Before generating anything, confirm the exact domain names that need to be covered. Decide whether you need a standard certificate, Wildcard or Multi-Domain product.

2. Generate a CSR where required

A certificate signing request contains information used in the certificate request and is associated with the private key. Managed platforms may generate this automatically.

3. Complete DV, OV or EV validation

For DV, you prove control of the domain using an approved method such as DNS. OV and EV add organization-level checks.

4. Install the certificate and intermediate chain

Upload or configure the issued certificate on the server, load balancer or hosting platform. Make sure the full certificate chain is served correctly.

5. Test the live website

Open the HTTPS hostname, check for browser warnings and use an SSL checker to inspect the certificate actually presented by the public server. Also test for mixed content and redirects from HTTP to HTTPS where appropriate.

How to Install an SSL Certificate (Step by Step) — FAQs

Do I need a CSR for every SSL certificate?

It depends on the platform and provider. Many managed systems generate the required key and CSR automatically, while custom server environments may require you to create them manually.

What should I test after installation?

Verify the live hostname, certificate chain, expiration date, redirects and whether the page loads without certificate or mixed-content warnings.

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