`sigma3server.com`

DNSSEC	⚠️ Not signed
NS	`dns6.sigma3.net` ⭐
		A	118.201.5.168^{🇸🇬 SINGNET118.201.0.0/17 SingNet Pte Ltd c/o Singapore Telecommunications 31 Exeter Road Comcentre Podium Block, 05-04}
			PTR	`dns6.sigma3.net`
NS	`dns2.sigma3.net`
		A	66.96.200.69^{🇸🇬 MYHOSTING-SG66.96.200.0/24 MYREPUBLIC LIMITED Jackson Square 11 Lorong 3 Toa Payoh Block B, 04-11/15}
			PTR	`69-200-96-66.myrepublic.com.sg`
NS	`dns5.sigma3.net`
		A	203.125.122.30^{🇸🇬 SINGNET203.125.0.0/16 SingNet Pte Ltd c/o Singapore Telecommunications 31 Exeter Road Comcentre Podium Block, 05-04}
			PTR	`dns5.sigma3.net`
MX	`mail4.sigma3.com.sg` ⭐
		A	118.201.5.169^{🇸🇬 SINGNET118.201.0.0/17 SingNet Pte Ltd c/o Singapore Telecommunications 31 Exeter Road Comcentre Podium Block, 05-04}
			PTR	`mail4.sigma3.com.sg`
SOA	`dns6.sigma3.net`support@sigma3.com.sg 2025-11-07 #2

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1776007027

Subdomains

mailhost.sigma3server.com

mail3.sigma3server.com

mail.sigma3server.com

Same first word

sigma3server.com

DNS History

11 records (4 active, 7 former)

●NSdns2.sigma3.net2026-03-08 → 2026-04-12 · 3 obs

○ 2015-07-13 18:36:58
● 2026-03-08 07:37:38
● 2026-04-12 15:28:42

○NSdns3.sigma3.net2008-11-25 → 2008-11-25 · 3 obs

● 2008-11-25 02:51:20
○ 2015-07-13 18:36:58
○ 2026-04-12 15:28:42

○NSdns4.sigma3.net2008-11-25 → 2008-11-25 · 3 obs

● 2008-11-25 02:51:20
○ 2015-07-13 18:36:58
○ 2026-04-12 15:28:42

●NSdns5.sigma3.net2015-07-13 → 2026-04-12 · 3 obs

○ 2008-11-25 02:51:20
● 2015-07-13 18:36:58
● 2026-04-12 15:28:42

●NSdns6.sigma3.net2015-07-13 → 2026-04-12 · 3 obs

○ 2008-11-25 02:51:20
● 2015-07-13 18:36:58
● 2026-04-12 15:28:42

○MXmail.sigma3server.com2015-07-13 → 2017-06-13 · 5 obs

○ 2008-11-25 02:51:20
● 2015-07-13 18:36:58
● 2017-06-13 18:25:32
○ 2026-03-08 07:37:38
○ 2026-04-12 15:28:42

○MXmail2.sigma3server.com2008-11-25 → 2008-11-25 · 3 obs

● 2008-11-25 02:51:20
○ 2015-07-13 18:36:58
○ 2026-04-12 15:28:42

○MXmail3.sigma3server.com2008-11-25 → 2017-06-13 · 4 obs

● 2008-11-25 02:51:20
● 2017-06-13 18:25:32
○ 2026-03-08 07:37:38
○ 2026-04-12 15:28:42

●MXmail4.sigma3.com.sg2026-03-08 → 2026-04-12 · 3 obs

○ 2017-06-13 18:25:32
● 2026-03-08 07:37:38
● 2026-04-12 15:28:42

○A118.201.5.1652015-07-13 → 2017-06-13 · 5 obs

○ 2008-11-25 02:51:20
● 2015-07-13 18:36:58
● 2017-06-13 18:25:32
○ 2026-03-08 07:37:38
○ 2026-04-12 15:28:42

○A203.116.166.682008-11-25 → 2008-11-25 · 3 obs

● 2008-11-25 02:51:20
○ 2015-07-13 18:36:58
○ 2026-04-12 15:28:42

🔍 DNS Trace

Analysis

Hierarchy

sigma3server.com is a parent of mailhost.sigma3server.com, mail3.sigma3server.com and mail.sigma3server.com.

Name Servers

sigma3server.com is delegated to three name servers: dns2.sigma3.net, dns5.sigma3.net and dns6.sigma3.net.

sigma3server.com at least partially shares name servers with other domains, for instance sigma3.com.sg, amt.com.sg, sigma3.net, aser-corp.com and wirewuss.com.

Host names with one IP number:

dns2.sigma3.net points to 66.96.200.69.

dns5.sigma3.net points to 203.125.122.30.

dns6.sigma3.net points to 118.201.5.168.

Mail Servers

sigma3server.com is handled by a single mail server, mail4.sigma3.com.sg.

sigma3server.com uses the same mail server setup as other domains such as sigma3.net and wirewuss.com.

sigma3server.com shares some mail servers with other domains at least partially, for example sigma3.com.sg.

these mail servers are commonly used alongside smtp.google.com.

Host name mail4.sigma3.com.sg points to IP address 118.201.5.169.

sigma3server.com - robtex.com