How to Add SSL to Your Internal Intranet 4 options for secure HTTPS access inside your network.
Even if your intranet never leaves your internal network, securing it with HTTPS is a smart move - especially if you're handling sensitive data or facing compliance requirements. Below are four ways to add SSL to your internal intranet site, depending on your setup.
Option 1: Self-Signed Certificate
This is the easiest and cheapest option, but it comes with browser warnings unless you manually trust the certificate. View step-by-step setup ›
- Free and fast to set up
- Useful for testing or very small teams
- May require user training to bypass warnings
Option 2: Wildcard Certificate
If your internal intranet uses a custom internal domain (like *.simplifyit.com), you may be able to use a wildcard certificate from a trusted authority. View step-by-step setup ›
- Works without browser warnings
- Requires internal DNS to match public domain
- Mid-range cost depending on provider
Option 3: Public Certificate for Internal Hostname
Some certificate authorities allow you to validate and secure intranet URLs that aren't publicly reachable, but this often requires additional steps and may cost more.
- Great for real internal hostnames or IPs
- Trusted by browsers out of the box
- More expensive than standard SSL
Option 4: Internal Certificate Authority (CA)
Some organizations run their own internal CA, allowing them to issue certificates for intranet sites without outside involvement. It requires more setup but avoids ongoing fees.
- Push trusted root certs via group policy
- Zero per-certificate cost after setup
- Best for institutions with IT staff or domain expertise
Need Help?
We help banks and credit unions secure their internal intranet tools, with or without a public domain. Request a demo or explore our intranet software to see how it works.