`stmarkgroup.com.sg`

DNSSEC	⚠️ Not signed
NS	`dnssec1.singnet.com.sg` ⭐
		A	2001:c20:18:a::36^{🇸🇬 SINGNET2001:c20:18::/48 SingNet Pte Ltd c/o Singapore Telecommunications 31 Exeter Road Comcentre Podium Block, 05-04}
		A	165.21.83.11^{🇸🇬 SINGNET165.21.0.0/16 SingNet Pte Ltd c/o Singapore Telecommunications 31 Exeter Road Comcentre Podium Block, 05-04}
			PTR	`dnssec1.singnet.com.sg`
NS	`dnssec2.singnet.com.sg`
		A	165.21.100.11^{🇸🇬 SINGNET165.21.0.0/16 SingNet Pte Ltd c/o Singapore Telecommunications 31 Exeter Road Comcentre Podium Block, 05-04}
			PTR	`dnssec3.singnet.com.sg`
NS	`dnssec3.singnet.com.sg`
		A	2001:c20:10:a::37^{🇸🇬 SINGNET2001:c20:10::/48 SingNet Pte Ltd c/o Singapore Telecommunications Accounts Payable Department 31 Exeter Road, 16-00 Comcent}
		A	165.21.100.11^{🇸🇬 SINGNET165.21.0.0/16 SingNet Pte Ltd c/o Singapore Telecommunications 31 Exeter Road Comcentre Podium Block, 05-04}
			PTR	`dnssec3.singnet.com.sg`
MX	`stmarkgroup-com-sg.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:cc09::^{🇸🇬 Microsoft2a01:111:f000::/36}
			PTR	`mail-sg2pr03cu00500.inbound.protection.outlook.com`
		A	2a01:111:f403:cc1a::8^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-tydpr03cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:cc1f::4^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-os8pr02cu00104.inbound.protection.outlook.com`
		A	52.101.124.117^{🇯🇵 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-tydpr03cu00105.inbound.protection.outlook.com`
		A	52.101.137.0^{🇸🇬 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sg2pr03cu00500.inbound.protection.outlook.com`
		A	52.101.157.80^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-os8pr02cu00100.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
TXT	`MS=ms25827425`
SOA	`dnssec1.singnet.com.sg`hostmaster@singnet.com.sg serial=2204141143

`com.sg`

	DNSSEC	⚠️ Not signed
	NS	`ds.sgnic.sg` ⭐
	NS	`dsany2.sgnic.sg` ⚠️ Not in parent delegation
	NS	`dsany3.sgnic.sg` ⚠️ Not in parent delegation
	NS	`dsany4.sgnic.sg` ⚠️ Not in parent delegation
	NS	`pch.sgzones.sg` ⚠️ Not in parent delegation
	SOA	`ds.sgnic.sg`dna@sgnic.sg serial=2608080400

Subdomains

www.stmarkgroup.com.sg

Same first word

stmarkgroup.com.sg

stmarkgroup.com

Similar names

smartkgroup.com

ksmartgroup.com

DNS History

12 records (4 active, 8 former)

○NSdnspri.singnet.com.sg2015-08-28 → 2016-07-23 · 4 obs

● 2015-08-28 20:16:22
● 2016-07-23 04:58:04
○ 2017-10-07 05:36:12
○ 2026-08-08 05:22:34

●NSdnssec1.singnet.com.sg2015-08-28 → 2026-08-08 · 2 obs

● 2015-08-28 20:16:22
● 2026-08-08 05:22:34

●NSdnssec2.singnet.com.sg2015-08-28 → 2026-08-08 · 2 obs

● 2015-08-28 20:16:22
● 2026-08-08 05:22:34

●NSdnssec3.singnet.com.sg2015-08-28 → 2026-08-08 · 2 obs

● 2015-08-28 20:16:22
● 2026-08-08 05:22:34

○MXalt1.aspmx.l.google.com2015-08-28 → 2016-07-23 · 4 obs

● 2015-08-28 20:16:22
● 2016-07-23 04:58:04
○ 2017-10-07 05:36:12
○ 2026-08-08 05:22:34

○MXalt2.aspmx.l.google.com2015-08-28 → 2016-07-23 · 4 obs

● 2015-08-28 20:16:22
● 2016-07-23 04:58:04
○ 2017-10-07 05:36:12
○ 2026-08-08 05:22:34

○MXaspmx.l.google.com2015-08-28 → 2016-07-23 · 4 obs

● 2015-08-28 20:16:22
● 2016-07-23 04:58:04
○ 2017-10-07 05:36:12
○ 2026-08-08 05:22:34

○MXaspmx2.googlemail.com2015-08-28 → 2016-07-23 · 4 obs

● 2015-08-28 20:16:22
● 2016-07-23 04:58:04
○ 2017-10-07 05:36:12
○ 2026-08-08 05:22:34

○MXaspmx3.googlemail.com2015-08-28 → 2016-07-23 · 4 obs

● 2015-08-28 20:16:22
● 2016-07-23 04:58:04
○ 2017-10-07 05:36:12
○ 2026-08-08 05:22:34

○MXaspmx4.googlemail.com2015-08-28 → 2016-07-23 · 4 obs

● 2015-08-28 20:16:22
● 2016-07-23 04:58:04
○ 2017-10-07 05:36:12
○ 2026-08-08 05:22:34

○MXaspmx5.googlemail.com2015-08-28 → 2016-07-23 · 4 obs

● 2015-08-28 20:16:22
● 2016-07-23 04:58:04
○ 2017-10-07 05:36:12
○ 2026-08-08 05:22:34

●MXstmarkgroup-com-sg.mail.protection.outlook.com2017-10-07 → 2026-08-08 · 3 obs

○ 2016-07-23 04:58:04
● 2017-10-07 05:36:12
● 2026-08-08 05:22:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
sg	pch.sgzones.sg, dsany2.sgnic.sg, dsany3.sgnic.sg, dsany4.sgnic.sg	-
stmarkgroup.com.sg	dnssec2.singnet.com.sg, dnssec3.singnet.com.sg, dnssec1.singnet.com.sg	3 records

✅ Authoritative Response

Server:165.21.100.11

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 803ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	3	`dnssec1.singnet.com.sg, dnssec2.singnet.com.sg...`
MX	1	`stmarkgroup-com-sg.mail.protection.outlo`
TXT	2	`v=spf1 include:spf.protection.outlook.co, MS=ms25827425`
SOA	1	`dnssec1.singnet.com.sg hostmaster.singne`

📌 Glue Records Collected

Total: 3

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

Analysis

Hierarchy

stmarkgroup.com.sg is a parent domain of www.stmarkgroup.com.sg.

Name Servers

stmarkgroup.com.sg is served by three name servers: dnssec1.singnet.com.sg, dnssec2.singnet.com.sg and dnssec3.singnet.com.sg.

stmarkgroup.com.sg shares at least some of its name servers with other domains, including mitsubishielectric.com.sg, 252.185.58.in-addr.arpa, arohiasset.com.sg and two others.

These name servers are frequently seen alongside the name servers ns1.mitsubishielectric.com.sg.

Hosts with two IP numbers each:

The A records for dnssec1.singnet.com.sg return 165.21.83.11 and 2001:c20:18:a::36.

The A records for dnssec3.singnet.com.sg return 165.21.100.11 and 2001:c20:10:a::37.

Hosts that resolve to one IP address:

dnssec2.singnet.com.sg resolves to the IP address 165.21.100.11.

dnssec3.singnet.com.sg and dnssec2.singnet.com.sg each have 165.21.100.11 IP addresses.

Mail Servers

stmarkgroup.com.sg routes its mail through a single mail server, stmarkgroup-com-sg.mail.protection.outlook.com.

stmarkgroup-com-sg.mail.protection.outlook.com directs to 6 IP numbers, including 52.101.124.117, 52.101.137.0 and 52.101.157.80, along with 3 other.

stmarkgroup.com.sg - robtex.com