Domain & Network Intelligence
DNS (Domain Name System)
The Domain Name System (DNS) is the hierarchical naming system that translates human-readable domain names into IP addresses that computers use to communicate. DNS records include A records (IPv4 addresses), AAAA records (IPv6), MX records (mail servers), and TXT records (text information). DNS reconnaissance is fundamental to network OSINT, revealing infrastructure relationships and service configurations.
Related OSINT terms
- NameserverA nameserver is a DNS server that is authoritative for a domain, containing the definitive DNS records for that domain.…
- MX Record (Mail Exchange)An MX (Mail Exchange) record is a DNS record type that specifies the mail servers responsible for receiving email for…
- Reverse IP LookupReverse IP lookup is a technique that identifies domain names publicly recorded as hosted on a specific IP address. It…
- WHOISWHOIS is a query and response protocol used to retrieve registration information about domain names, IP addresses, and autonomous systems.…
Related Skills
Investigative Skills in Nexus that apply DNS to a live case.
- App and Developer IntelligenceExplore public mobile applications and developer profiles, including linked websites, releases and support information.Pro & Agency
- DNS PostureExamine public domain records and the infrastructure relationships they indicate.Pro & Agency
- Reverse IP RelationshipsDiscover hostname and shared-hosting associations without treating them as proof of common ownership.Pro & Agency