What Is DNSSEC?

Domain Name System Security Extensions, or DNSSEC, is a layer of authentication security added to the DNS that preserves the integrity of DNS data by ensuring any altered data can be detected and blocked. It serves as a "chain of trust" that utilizes public key cryptography and digital signatures to help users arrive safely at their intended online destination.

DNS Education

Explore our library of videos that explain how the Domain Name System works and why it matters.

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What is the DNS?

Mapping domain names to numbers

Learn more about the DNS
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What is a URL?

Directions to a specific webpage

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Whois Zone File Information NameStudio

What Is the DNS? What Is DNSSEC? What Is a URL?

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Whois Zone File Information NameStudio

DNS EDUCATION

What Is the DNS? What Is DNSSEC? What Is a URL?

INSIGHTS

Blog Publications

SUPPORT

Contact Us Verisign Account Center Verisign Customer Center Registration Data Disclosure Requests

ABOUT US

About Verisign Mission and Values Leadership Verisign Cares Newsroom Investor Relations Careers

DOMAIN NAMES

.com .net Domain Names Find a Registrar Domain Name Industry Brief

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English 中文

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