Install a paid SSL certificate in Plesk (CSR, certificate, CA bundle)

If you purchased an SSL certificate from a third‑party provider (for example, a wildcard or EV certificate), you can install it in Plesk and assign it to your domain on GARMTECH hosting.

What you need from the certificate provider

• Certificate (your domain certificate, usually PEM/CRT)
• CA bundle / intermediate certificates (sometimes called “CA certificate”)
• Private key (generated together with CSR in Plesk)

Note: If you generated the CSR elsewhere and do not have the matching private key, the certificate will not work.

Step 1 — Generate a CSR in Plesk (if you don’t have one yet)

1. Log in to Plesk.
2. Go to Websites & Domains → your domain → SSL/TLS Certificates.
3. Click Add SSL/TLS Certificate → choose Request (CSR).
4. Fill in the required fields (domain, company details). Make sure the domain name matches what you order.
5. Generate the CSR and copy it to your SSL provider to issue the certificate.

Step 2 — Install the certificate files in Plesk

1. In Plesk → SSL/TLS Certificates, click Add SSL/TLS Certificate.
2. Choose Upload certificate files or paste the content into the fields:
   • Certificate: your domain certificate
   • Private key: the matching private key
   • CA certificate: the CA bundle / intermediate certificates
3. Save changes.

Step 3 — Assign the certificate to the website

1. Go to Websites & Domains → your domain → Hosting Settings.
2. Enable SSL/TLS support (if it is not enabled).
3. Select your new certificate in the certificate dropdown.
4. Apply changes and test the website via https://.

Common issues

• Certificate shows as incomplete: usually the CA bundle is missing. Re‑install with the correct intermediate certificates.
• HTTPS works, but browsers warn about content: this is “mixed content” inside the website. Update URLs in the CMS to HTTPS.

Related articles

• Enable free Let’s Encrypt SSL in Plesk
• Redirect HTTP to HTTPS in Plesk (HTTP→HTTPS)