SSL and TLS are two generations of the same idea: a protocol for encrypting connections. TLS is the newer one, and it is the one in use today.
SSL came first, and its versions are long outdated and no longer considered secure. TLS replaced it, and the current versions in wide use are TLS 1.2 and TLS 1.3.
The name stuck. Many hosting panels, tools and shops still sell an 'SSL certificate', even though the connection it secures uses TLS.
No. The same kind of certificate works for TLS. The certificate holds a name, a key and dates; which protocol version runs is decided when the connection starts. Nobody needs to order a different certificate because of the name.
For everyday use, the protocol name matters less than the end date, the names covered and the issuer. Those are what you need to keep track of.
SSL Domain Detective lists the certificate end dates of your domains, whichever name is used for them. Open SSL Domain Detective
SSL Domain Detective is now available on the App Store.
Last reviewed: 2026-11-02
#SSL #TLS #Certificates #DomainExpiry #SysAdmin #MSP #iOS
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