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online nslookup tools,fecth NS records,dig domain ns,dig hostame ns

On this page you can find free online nslookup tool, it's fetch find ns records for domain or hostname.
NS lookup have 4 sections of result, it's using dig hostname / domain tool for getting info.
Dig scan DNS records and return only NS and A. This tool not working for IP's - for domain and hostname only.
dig domain ns Our tools working extended mode, it showing some extended info about dns query.
If you see something like this "86400 IN SOA a.root-servers.net. nstld.verisign-grs.com." - then nothing was found.
RFC1033: NS (Name Server), record:<domain> [<ttl>] [<class>] NS <server>
The NS record lists the name of a machine that provides domain service for a particular domain. The name associated with the RR is the domain name and the data portion is the name of a host that provides the service.
An NS (name server) record allows you to delegate a subdomain of your domain to another name server. If the name server host for a particular domain is itself inside the domain, then a 'glue' record will be needed. A glue record is an A (address) RR that specifies the address of the server.
There is fast link for ns lookup and check ns record: or (http://my-addr.com/ns/yahoo.com)

[www.domain.com] it's subdomain of [domain.com]. Thats why [domain.com] can exist but [www.domain.com] not exist and [www.domain.com] can exist but [domain.com] - not.
As usualy ns records don't exist for subdomain [www.domain.com], thats why on fail - you can try to do ns record lookup for domain (hostname) without 'www'
Search masks like '*.domain.com' are NOT allowed for ns record lookup, if it will be realy need pls write feedback to us.
new window:
yahoo.com (example of lookup)

# global options: +cmd
# Got answer:
# ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 55840
# flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 10
# QUESTION SECTION:
;yahoo.com. IN NS
# ANSWER SECTION:
yahoo.com. 28488 IN NS ns1.yahoo.com.
yahoo.com. 28488 IN NS ns6.yahoo.com.
yahoo.com. 28488 IN NS ns4.yahoo.com.
yahoo.com. 28488 IN NS ns2.yahoo.com.
yahoo.com. 28488 IN NS ns3.yahoo.com.
yahoo.com. 28488 IN NS ns5.yahoo.com.
# ADDITIONAL SECTION:
ns1.yahoo.com. 386938 IN A 68.180.131.16
ns1.yahoo.com. 42201 IN AAAA 2001:4998:130::1001
ns2.yahoo.com. 313111 IN A 68.142.255.16
ns2.yahoo.com. 7021 IN AAAA 2001:4998:140::1002
ns3.yahoo.com. 385618 IN A 203.84.221.53
ns3.yahoo.com. 28475 IN AAAA 2406:8600:b8:fe03::1003
ns4.yahoo.com. 386946 IN A 98.138.11.157
ns5.yahoo.com. 386944 IN A 119.160.247.124
ns6.yahoo.com. 28488 IN A 121.101.144.139
ns6.yahoo.com. 81068 IN AAAA 2406:2000:108:4::1006
# Query time: 0 msec
# SERVER: 10.53.53.53#53(10.53.53.53)
# WHEN: Sun May 1 16:10:19 2016
# MSG SIZE rcvd: 343