NS Lookup

Check NS records of a given domain (Using Forward DNS Lookup)

You might also be interested in:

CNAME Lookup
MX Lookup
NS Lookup
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TXT Lookup
DNS Lookup

What is an NS Record ?

NS stands for Name Server. An NS record is a type of DNS (Domain Name System) record that identifies the authoritative DNS servers for a particular domain. These authoritative name servers are responsible for providing the IP addresses associated with domain names, which allows web browsers to locate and connect to the appropriate web servers.

The NS record contains the name of the authoritative name server for the domain, as well as the IP address of that server. The NS record is stored in the DNS zone file for the domain and is used by other DNS servers to determine which name server is authoritative for that domain.

When a user types a domain name into a web browser, the browser first sends a DNS request to a recursive DNS server to look up the IP address associated with the domain name. The recursive DNS server then sends a series of requests to the authoritative DNS servers for the domain, using the NS records to determine which name servers to query.

Overall, NS records are critical to the functioning of the DNS system, as they help to ensure that domain names are properly resolved to the correct IP addresses.

What is an NS-Records-Lookup Tool ?

An NS-Records-Lookup Tool is a type of online tool or software that allows users to look up the Name Server (NS) records associated with a particular domain name. This tool can be used to identify the authoritative name servers for a domain and to verify that the NS records are set up correctly.

To use an NS-Records-Lookup Tool, a user typically enters the domain name they are interested in and the tool will then retrieve and display the NS records associated with that domain. Some tools may also provide additional information, such as the IP addresses associated with the name servers.

NS-Records-Lookup Tools are commonly used by website administrators, network administrators, and other IT professionals to troubleshoot DNS issues and to verify that domain names are properly configured. For example, if a user is experiencing problems accessing a particular website, they may use an NS-Records-Lookup Tool to check whether the domain's NS records are set up correctly and whether there are any issues with the authoritative name servers.

What can an NS-Records-Lookup Tool be used for ?

NS-Records-Lookup Tools can be useful for a variety of purposes, including:

Troubleshooting DNS issues: If a user is experiencing problems accessing a particular website, they can use an NS-Records-Lookup Tool to check whether the domain's NS records are set up correctly and whether there are any issues with the authoritative name servers.
Verifying domain ownership: Companies or individuals can use an NS-Records-Lookup Tool to verify that they own a particular domain name by confirming that the NS records associated with the domain match their own name servers.
Checking domain name registration: Potential domain name buyers can use an NS-Records-Lookup Tool to verify the domain's registration status and ownership information.
Identifying domain name servers: Network administrators can use an NS-Records-Lookup Tool to identify the name servers responsible for managing a particular domain name.
DNS configuration management: Website administrators can use NS-Records-Lookup Tools to ensure that their DNS settings are properly configured and up to date.
DNS security management: Network security professionals can use NS-Records-Lookup Tools to detect and prevent DNS spoofing attacks.
Domain name migration: When moving a domain name from one web host to another, an NS-Records-Lookup Tool can help ensure that the DNS settings are correctly transferred to the new hosting provider.
Geolocation: An NS-Records-Lookup Tool can be used to determine the physical location of a domain's name servers, which can be useful for optimizing web content delivery based on user location.
Monitoring DNS health: Network administrators can use NS-Records-Lookup Tools to monitor the health of their DNS infrastructure, ensuring that DNS queries are being resolved quickly and accurately.
Researching domain name history: Researchers and marketers can use NS-Records-Lookup Tools to discover the historical DNS settings associated with a particular domain name, providing insights into the domain's past ownership and usage.

List of Commonly Used DNS Record types:

Type	Description	Function
A	IPv4 Address record	Returns a 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host, but it is also used for DNSBLs, storing subnet masks in RFC 1101, etc.
AAAA	IPv6 address record	Returns a 128-bit IPv6 address, most commonly used to map hostnames to an IP address of the host.
AFSDB	AFS database record	Location of database servers of an AFS cell. This record is commonly used by AFS clients to contact AFS cells outside their local domain. A subtype of this record is used by the obsolete DCE/DFS file system.
APL	APL
CAA	Certification Authority Authorization	DNS Certification Authority Authorization, constraining acceptable CAs for a host/domain
CERT	Certificate record	Stores PKIX, SPKI, PGP, etc.
CNAME	Canonical name record	Alias of one name to another: the DNS lookup will continue by retrying the lookup with the new name.
DHCID	DHCP identifier	Used in conjunction with the FQDN option to DHCP
DNAME	Delegation name record	Alias for a name and all its subnames, unlike CNAME, which is an alias for only the exact name. Like a CNAME record, the DNS lookup will continue by retrying the lookup with the new name.
DNSKEY	DNS Key record	The key record used in DNSSEC. Uses the same format as the KEY record.
DS	Delegation signer	The record used to identify the DNSSEC signing key of a delegated zone
IPSECKEY	IPsec Key	Key record that can be used with IPsec
LOC	Location record	Specifies a geographical location associated with a domain name
MX	Mail exchange record	Maps a domain name to a list of message transfer agents for that domain
NAPTR	Naming Authority Pointer	Allows regular-expression-based rewriting of domain names which can then be used as URIs, further domain names to lookups, etc.
NS	Name server record	Delegates a DNS zone to use the given authoritative name servers
NSEC	Next Secure record	Part of DNSSEC—used to prove a name does not exist. Uses the same format as the (obsolete) NXT record.
NSEC3	Next Secure record version 3	An extension to DNSSEC that allows proof of nonexistence for a name without permitting zonewalking
NSEC3PARAM	NSEC3 parameters	Parameter record for use with NSEC3
PTR	PTR Resource Record	Pointer to a canonical name. Unlike a CNAME, DNS processing stops and just the name is returned. The most common use is for implementing reverse DNS lookups, but other uses include such things as DNS-SD.
RP	Responsible Person	Information about the responsible person(s) for the domain. Usually an email address with the @ replaced by a .
RRSIG	DNSSEC signature	Signature for a DNSSEC-secured record set. Uses the same format as the SIG record.
SOA	Start of [a zone of] authority record	Specifies authoritative information about a DNS zone, including the primary name server, the email of the domain administrator, the domain serial number, and several timers relating to refreshing the zone.
SRV	Service locator	Generalized service location record, used for newer protocols instead of creating protocol-specific records such as MX.
SSHFP	SSH Public Key Fingerprint	Resource record for publishing SSH public host key fingerprints in the DNS System, in order to aid in verifying the authenticity of the host. RFC 6594 defines ECC SSH keys and SHA-256 hashes. See the IANA SSHFP RR parameters registry for details.
TLSA	TLSA certificate association	A record for DANE. RFC 6698 defines "The TLSA DNS resource record is used to associate a TLS server certificate or public key with the domain name where the record is found, thus forming a 'TLSA certificate association'".
TSIG	Transaction Signature	Can be used to authenticate dynamic updates as coming from an approved client, or to authenticate responses as coming from an approved recursive name server[13] similar to DNSSEC.
TXT	Text record	Originally for arbitrary human-readable text in a DNS record. Since the early 1990s, however, this record more often carries machine-readable data, such as specified by RFC 1464, opportunistic encryption, Sender Policy Framework, DKIM, DMARC, DNS-SD, etc.
URI	Uniform Resource Identifier	Can be used for publishing mappings from hostnames to URIs.