SPF Lookup
Sender Policy Framework
MX Lookup
Mail Exchange records
DKIM Lookup
DomainKeys Identified Mail
DMARC Lookup
Email authentication
BIMI Lookup
Brand logo record
MTA-STS Lookup
Enforced TLS policy
PTR Lookup
Reverse DNS / rDNS
Blacklist Check
50+ DNSBL blacklists
Header Analyzer
Email header parsing
NS Lookup
Nameserver query
IP Lookup
IP address details
NS Record lookup
Look up NS (Name Server) records to find the authoritative DNS servers for a domain.
About NS Records
NS (Name Server) records define which servers will respond to DNS queries for a domain. These records form the foundation of your domain's DNS infrastructure.
NS records show where all of your domain's DNS records (A, MX, TXT, etc.) are hosted, and they are the first step of DNS resolution.
Importance of NS Records
- DNS Management
Determines which servers manage your domain's DNS records.
- Redundancy
Multiple NS records prevent DNS outages.
- Performance
Geographically distributed NS servers respond faster.
- Security
Validates the authoritative DNS servers.