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DNS Lookup Tool

DNS Records

Perform high-speed querying of A, AAAA, MX, CNAME, TXT, and NS records for any domain name.

Turkey National Cyber Security Status (USOM)

SAFE: No active restrictions found in USOM registry
Clean / Allowed

Target Address

137.138.6.31

BGP Autonomous System (ASN)

AS513 (CERN - CERN - European Organization for Nuclear Research, CH) [CH]

Name Servers (NS)

Record Type: NS
2 Records
Target ext-dns-2.cern.ch IP
IPv4 192.91.245.85 IPv6 2001:1458:1:2::100:85
ASN
AS513 (CERN - CERN - European Organization for Nuclear Research, CH) [CH] AS513 (CERN - CERN - European Organization for Nuclear Research, CH) [CH]
Target ext-dns-1.cern.ch IP
IPv4 192.65.187.5 IPv6 2001:1458:1:1::5
ASN
AS513 (CERN - CERN - European Organization for Nuclear Research, CH) [CH] AS513 (CERN - CERN - European Organization for Nuclear Research, CH) [CH]
DNS Resolution Roadmap
Resolution started: querying NS (Name Server) records for cern.int.
Step 1: Querying local DNS resolver...
Success! Authorized NS records retrieved from local DNS resolver.

IP Addresses (A) (IPv4)

Record Type: A
1 Records
IP Address 137.138.6.31 ASN Info AS513 (CERN - CERN - European Organization for Nuclear Research, CH) [CH]

IP Addresses (AAAA) (IPv6)

Record Type: AAAA
1 Records
IPv6 Address 2001:1458:201:8b::100:1c8 ASN Info AS513 (CERN - CERN - European Organization for Nuclear Research, CH) [CH]

Mail Servers (MX)

Record Type: MX
0 Records
No records found.

Text Records (TXT)

Record Type: TXT
0 Records
No records found.

Alias Records (CNAME)

Record Type: CNAME
0 Records
No records found.

Start of Authority (SOA)

Record Type: SOA
1 Records
Primary NS / Admin ext-dns-1.cern.ch
external-dns.cern.ch 		Serial / Refresh S: 2015070211
R: 43200 		Expire / Min E: 604800
M: 43200