`mail.coreconcepts.sg`

CNAME	`coreconcepts.sg`
DNSSEC	⚠️ Not signed
A	103.14.236.18^{🇸🇬 M1NET-SG-AP103.14.236.0/22 Xssist Group Pte Ltd 171A Edgedale Plains 17-430}
		PTR	`server.coreconceptsdns.com`
NS	`ns1.coreconceptsdns.com` ⭐
		A	103.14.236.18^{🇸🇬 M1NET-SG-AP103.14.236.0/22 Xssist Group Pte Ltd 171A Edgedale Plains 17-430}
			PTR	`server.coreconceptsdns.com`
NS	`ns2.coreconceptsdns.com`
		A	103.14.236.19^{🇸🇬 M1NET-SG-AP103.14.236.0/22 Xssist Group Pte Ltd 171A Edgedale Plains 17-430}
MX	`coreconcepts.sg` ⭐
		A	103.14.236.18^{🇸🇬 M1NET-SG-AP103.14.236.0/22 Xssist Group Pte Ltd 171A Edgedale Plains 17-430}
			PTR	`server.coreconceptsdns.com`
TXT	`google-site-verification=LfEyI_TyzfKBXbiinYdDLQnFlKPeITtZOWMN3pt3C28`
TXT	`v=spf1 +a +mx +ip4:103.14.236.18 +include:_spf.google.com +ip4:103.14.236.19 ...`
SOA	`ns1.coreconceptsdns.com`root@server.coreconceptsdns.com 2026-05-24 #1

`coreconcepts.sg`

	DNSSEC	⚠️ Not signed
	A	103.14.236.18^{🇸🇬 M1NET-SG-AP103.14.236.0/22 Xssist Group Pte Ltd 171A Edgedale Plains 17-430}
	NS	`ns1.coreconceptsdns.com` ⭐
	NS	`ns2.coreconceptsdns.com`
	MX	`coreconcepts.sg` ⭐
	TXT	`google-site-verification=LfEyI_TyzfKBXbiinYdDLQnFlKPeITtZOWMN3pt3C28`
	TXT	`v=spf1 +a +mx +ip4:103.14.236.18 +include:_spf.google.com +ip4:103.14.236.19 ...`
	SOA	`ns1.coreconceptsdns.com`root@server.coreconceptsdns.com 2026-05-24 #1

MX for

coreconcepts.com.sg

coreconceptsdns.com

Same first word

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DNS History

1 record (1 active, 0 former)

●CNAMEcoreconcepts.sg2026-02-17 → 2026-07-05 · 2 obs

● 2026-02-17 13:12:42
● 2026-07-05 04:55:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
sg	ns4.apnic.net, pch.sgzones.sg, dsany2.sgnic.sg, dsany3.sgnic.sg...	10 records
coreconcepts.sg	ns2.coreconceptsdns.com, ns1.coreconceptsdns.com	-

✅ Authoritative Response

Server:103.14.236.19

NS records: ns2.coreconceptsdns.com, ns1.coreconceptsdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coreconcepts.sg (unsigned zone)

⏱️ Timing

Total: 916ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`coreconcepts.sg`

📌 Glue Records Collected

Total: 10

In-bailiwick: 8 (pch.sgzones.sg, dsany2.sgnic.sg, dsany3.sgnic.sg...)

Out-of-bailiwick: 2 (ns4.apnic.net, ns4.apnic.net)

Analysis

Mail Server Role

mail.coreconcepts.sg acts as a mail server for coreconcepts.com.sg and coreconceptsdns.com.

IP Addresses

mail.coreconcepts.sg points to a single IP number: 103.14.236.18.

Additional host names such as ns1.coreconceptsdns.com, coreconceptsdns.com, coreconcepts.sg and server.coreconceptsdns.com share IP numbers with mail.coreconcepts.sg.

Name Servers

mail.coreconcepts.sg is served by two delegated name servers, ns1.coreconceptsdns.com and ns2.coreconceptsdns.com.

Other domains share the same name server configuration as mail.coreconcepts.sg, for example coreconcepts.sg.

Both ns1.coreconceptsdns.com and ns2.coreconceptsdns.com have a single IP address each — ns1.coreconceptsdns.com resolves to 103.14.236.18 while ns2.coreconceptsdns.com resolves to 103.14.236.19.

Mail Servers

mail.coreconcepts.sg has one mail server: coreconcepts.sg.

mail.coreconcepts.sg shares its mail server setup with other domains, such as coreconcepts.sg.

There is one IP number for coreconcepts.sg: 103.14.236.18.

mail.coreconcepts.sg - robtex.com