This site is an archive and is no longer updated.
    TroubleshootingIntermediate

    Wildcard Certificate Risks

    Understand wildcard certificate security risks. Learn scope limitations and safer alternatives.

    Interactive Demo
    LinkedInX
    Wildcard Dangers
    Step 0 of 4
    See how one compromise affects everything
    *.example.com

    Single wildcard certificate

    www
    Main website
    api
    API services
    mail
    Email server
    admin
    Admin panel
    dev
    Dev environment

    Mitigation Strategies

    • Use individual certificates for critical services (API, admin panels)
    • Segment your infrastructure - different certs for different security zones
    • Store private keys in HSMs or secure key management systems
    • Implement certificate pinning for high-security applications