Glossary
| Term | Definition |
|---|---|
| TLSA | TLSA stands for Transport Layer Security Authentication, an integral part of the Domain Name System Security Extensions (DNSSEC). |
| Top-level domain | A top-level domain (TLD) is one of the domains at the highest level in the hierarchical Domain Name System of the Internet. |
| Transport Layer Security | Transport Layer Security (TLS), and its now-deprecated predecessor, Secure Sockets Layer (SSL), are cryptographic protocols designed to provide communications security over a computer network. |