cobra.com.sg - robtex.com

cobra.com.sg

DNSSEC⚠️ Not signed
A165.21.111.49🇸🇬 SINGNET165.21.0.0/16 SingNet Pte Ltd c/o Singapore Telecommunications 31 Exeter Road Comcentre Podium Block, 05-04
NSdnssec1.singnet.com.sg ⭐
A2001:c20:18:a::36🇸🇬 SINGNET2001:c20:18::/48 SingNet Pte Ltd c/o Singapore Telecommunications 31 Exeter Road Comcentre Podium Block, 05-04
A165.21.83.11🇸🇬 SINGNET165.21.0.0/16 SingNet Pte Ltd c/o Singapore Telecommunications 31 Exeter Road Comcentre Podium Block, 05-04
PTRdnssec1.singnet.com.sg
NSdnssec2.singnet.com.sg
A165.21.100.11🇸🇬 SINGNET165.21.0.0/16 SingNet Pte Ltd c/o Singapore Telecommunications 31 Exeter Road Comcentre Podium Block, 05-04
PTRdnssec3.singnet.com.sg
NSdnssec3.singnet.com.sg
A2001:c20:10:a::37🇸🇬 SINGNET2001:c20:10::/48 SingNet Pte Ltd c/o Singapore Telecommunications Accounts Payable Department 31 Exeter Road, 16-00 Comcent
A165.21.100.11🇸🇬 SINGNET165.21.0.0/16 SingNet Pte Ltd c/o Singapore Telecommunications 31 Exeter Road Comcentre Podium Block, 05-04
PTRdnssec3.singnet.com.sg
MXcobra-com-sg.mail.protection.outlook.com ⭐
A2a01:111:f403:cc09::🇸🇬 Microsoft2a01:111:f000::/36
PTRmail-sg2pr03cu00500.inbound.protection.outlook.com
A2a01:111:f403:cc1a::8🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-tydpr03cu00100.inbound.protection.outlook.com
A2a01:111:f403:cc1f::4🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-os8pr02cu00104.inbound.protection.outlook.com
A52.101.124.117🇯🇵 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-tydpr03cu00105.inbound.protection.outlook.com
A52.101.137.0🇸🇬 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-sg2pr03cu00500.inbound.protection.outlook.com
A52.101.157.80🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-os8pr02cu00100.inbound.protection.outlook.com
TXTv=spf1 include:spf.protection.outlook.com -all
TXTMS=ms93605835
SOAdnssec1.singnet.com.sghostmaster@singnet.com.sg serial=2505251128

com.sg

DNSSEC⚠️ Not signed
NSds.sgnic.sg ⭐
NSdsany2.sgnic.sg ⚠️ Not in parent delegation
NSdsany3.sgnic.sg ⚠️ Not in parent delegation
NSdsany4.sgnic.sg ⚠️ Not in parent delegation
NSpch.sgzones.sg ⚠️ Not in parent delegation
SOAds.sgnic.sgdna@sgnic.sg serial=2604121330

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DNS History

8 records (5 active, 3 former)

20162017201820192020202120222023202420252026NSdnssec1.singnet.com.sgdnssec2.singnet.com.sgdnssec3.singnet.com.sgdnspri.singnet.com.sgMXcobra-com-sg.mail.protection.outlook.combizmx.singnet.com.sgcorpmx.singnet.com.sgA165.21.111.49
○NSdnspri.singnet.com.sg2015-06-20 → 2017-03-29 · 4 obs
● 2015-06-20 06:53:24
● 2017-03-29 14:38:08
○ 2026-03-30 05:52:32
○ 2026-04-12 13:46:38
●NSdnssec1.singnet.com.sg2015-06-20 → 2026-04-12 · 2 obs
● 2015-06-20 06:53:24
● 2026-04-12 13:46:38
●NSdnssec2.singnet.com.sg2015-06-20 → 2026-04-12 · 2 obs
● 2015-06-20 06:53:24
● 2026-04-12 13:46:38
●NSdnssec3.singnet.com.sg2015-06-20 → 2026-04-12 · 2 obs
● 2015-06-20 06:53:24
● 2026-04-12 13:46:38
○MXbizmx.singnet.com.sg2015-06-20 → 2017-03-29 · 4 obs
● 2015-06-20 06:53:24
● 2017-03-29 14:38:08
○ 2026-03-30 05:52:32
○ 2026-04-12 13:46:38
●MXcobra-com-sg.mail.protection.outlook.com2026-03-30 → 2026-04-12 · 3 obs
○ 2017-03-29 14:38:08
● 2026-03-30 05:52:32
● 2026-04-12 13:46:38
○MXcorpmx.singnet.com.sg2015-06-20 → 2017-03-29 · 4 obs
● 2015-06-20 06:53:24
● 2017-03-29 14:38:08
○ 2026-03-30 05:52:32
○ 2026-04-12 13:46:38
●A165.21.111.492015-06-20 → 2026-04-12 · 2 obs
● 2015-06-20 06:53:24
● 2026-04-12 13:46:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
sgpch.sgzones.sg, dsany2.sgnic.sg, dsany3.sgnic.sg, dsany4.sgnic.sg-
cobra.com.sgdnssec1.singnet.com.sg, dnssec2.singnet.com.sg, dnssec3.singnet.com.sg3 records

✅ Authoritative Response

Server:165.21.83.11

NS records: dnssec1.singnet.com.sg, dnssec2.singnet.com.sg, dnssec3.singnet.com.sg

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cobra.com.sg (unsigned zone)

⏱️ Timing

Total: 593ms | Queries: -

📄 Records

TypeCountSample Data
A1165.21.111.49
NS3dnssec1.singnet.com.sg, dnssec2.singnet.com.sg...
MX1cobra-com-sg.mail.protection.outlook.com
TXT2MS=ms93605835, v=spf1 include:spf.protection.outlook.co
SOA1dnssec1.singnet.com.sg hostmaster.singne

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (dnssec1.singnet.com.sg, dnssec2.singnet.com.sg, dnssec3.singnet.com.sg)

Analysis

IP Addresses

cobra.com.sg maps to IP address 165.21.111.49.

Other host names, for instance terex.com.sg, 219motorshop.com.sg, synztec.com.sg, motionlink.com.sg and astpneumatic.com.sg share IP numbers with cobra.com.sg.

Name Servers

cobra.com.sg is delegated to name servers dnssec1.singnet.com.sg, dnssec2.singnet.com.sg and dnssec3.singnet.com.sg.

cobra.com.sg at least partially shares name servers with other domains such as 121.125.203.in-addr.arpa, ptcsys.com.sg, homeetcetera.com.sg, acis.com.sg and dacon.com.sg.

Host names with two IPs:

dnssec1.singnet.com.sg points to 2001:c20:18:a::36 and 165.21.83.11

dnssec3.singnet.com.sg points to 2001:c20:10:a::37 and 165.21.100.11

Host names with one IP:

dnssec2.singnet.com.sg points to 165.21.100.11

Hosts that point to 165.21.100.11: dnssec3.singnet.com.sg and dnssec2.singnet.com.sg

Mail Servers

cobra.com.sg is handled by a single mail server, cobra-com-sg.mail.protection.outlook.com.

cobra-com-sg.mail.protection.outlook.com resolves to six IP numbers: 2a01:111:f403:cc09::, 2a01:111:f403:cc1a::8, 2a01:111:f403:cc1f::4, 52.101.124.117, 52.101.137.0 and 52.101.157.80.