Does .ssl exist?
No. No — .ssl is not a TLD. SSL is the encryption layer for connections, not a domain ending.
The full story
SSL/TLS is what puts the padlock on HTTPS, so '.ssl' reads as legitimate to security folks — but it has never been delegated to the DNS root and no application exists. Certificates secure a domain; they are not a domain. For a security or infrastructure brand, the resolvable endings below are the real choice.
What to use instead
.io — The default startup TLD of the 2010s.dev — Best value in domains for anything developer-facing.net — The eternal runner-up
Wondering about another extension? Every real TLD is in the directory.
This answer is generated from the live IANA root zone list, not from vibes. If the DNS changes, this page changes.