Technical
What is DNS (Domain Name System)?
The internet's phone book that translates human-readable domain names into IP addresses. DNS records also reveal hosting providers, email services, and security configurations.
See DNS (Domain Name System) in Action
Related Terms
WHOIS
A protocol for querying databases that store registration information about domain names. WHOIS data includes registrant details, registration dates, nameservers, and expiration dates.
CNAME Probing
A technique for detecting SaaS tools by checking DNS CNAME records. Many cloud services require customers to create CNAME records, revealing which tools they use.
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