core-em.com - dns.ninja

`core-em.com`

DNSSEC	⚠️ Not signed
A	91.210.235.40^{🇮🇪 BLACKNIGHT-AS91.210.232.0/22 IE-PROTOCOL-PI}
		PTR	`ceil.webhostingireland.ie`
NS	`ns1.webhostingireland.ie` ⭐
		A	91.210.232.8^{🇮🇪 BLACKNIGHT-AS91.210.232.0/22 IE-PROTOCOL-PI}
			PTR	`ns1.webhostingireland.ie`
NS	`ns2.webhostingireland.ie`
		A	52.16.7.155^{🇮🇪 Amazon52.16.0.0/15 EC2 DUB prefix}
			PTR	`ns2.webhostingireland.ie`
NS	`ns3.webhostingireland.ie`
		A	185.43.234.232^{🇮🇪 SIMPLYTRANSIT185.43.232.0/22 Simply Transit Ltd}
			PTR	`ns3.webhostingireland.ie`
MX	`coreem-com01b.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::e^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db8pr02cu00106.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::f^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db7pr03cu00507.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::2^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am0pr83cu00402.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::5^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am1pr04cu00105.inbound.protection.outlook.com`
		A	52.101.73.1^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am3pr04cu00501.inbound.protection.outlook.com`
		A	52.101.73.6^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am6pr04cu00306.inbound.protection.outlook.com`
		A	52.101.73.19^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as8pr04cu00803.inbound.protection.outlook.com`
		A	52.101.73.24^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as8pr05cu00300.inbound.protection.outlook.com`
MX	`core-em.com`⁽²⁵⁾
		A	91.210.235.40^{🇮🇪 BLACKNIGHT-AS91.210.232.0/22 IE-PROTOCOL-PI}
			PTR	`ceil.webhostingireland.ie`
TXT	`MS=ms24467230`
TXT	`v=spf1 ip4:91.210.235.40 include:spf.webhostingireland.ie include:webhostingi...`
SOA	`ns1.webhostingireland.ie`admins@hostingireland.ie 2026-06-13 #1

`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=1784159272

MX for

core-em.com

Subdomains

mail.core-em.com

Same first word

core-em.com

Similar names

meer-co.com

ee-corm.cn

e-recom.com

eco-mer.org

e-comer.com

eeco-rm.cn

emo-cre.com

eco-mer.com

em-core.com

creo-me.com

core-me.com

me-core.jp

com-ere.com

DNS History

6 records (6 active, 0 former)

●NSns1.webhostingireland.ie2015-07-25 → 2026-07-15 · 2 obs

● 2015-07-25 07:16:50
● 2026-07-15 23:57:40

●NSns2.webhostingireland.ie2015-07-25 → 2026-07-15 · 2 obs

● 2015-07-25 07:16:50
● 2026-07-15 23:57:40

●NSns3.webhostingireland.ie2015-07-25 → 2026-07-15 · 2 obs

● 2015-07-25 07:16:50
● 2026-07-15 23:57:40

●MXcore-em.com2015-07-25 → 2026-07-15 · 2 obs

● 2015-07-25 07:16:50
● 2026-07-15 23:57:40

●MXcoreem-com01b.mail.protection.outlook.com2026-03-28 → 2026-07-15 · 3 obs

○ 2015-07-25 07:16:50
● 2026-03-28 11:04:34
● 2026-07-15 23:57:40

●A91.210.235.402015-07-25 → 2026-07-15 · 2 obs

● 2015-07-25 07:16:50
● 2026-07-15 23:57:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
core-em.com	ns1.webhostingireland.ie, ns2.webhostingireland.ie, ns3.webhostingireland.ie	-

✅ Authoritative Response

Server:185.43.234.232

NS records: ns1.webhostingireland.ie, ns2.webhostingireland.ie, ns3.webhostingireland.ie

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for core-em.com (unsigned zone)

⏱️ Timing

Total: 799ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.210.235.40`
NS	3	`ns3.webhostingireland.ie, ns2.webhostingireland.ie...`
MX	2	`coreem-com01b.mail.protection.outlook.co, core-em.com (pri: 25)`
TXT	2	`MS=ms24467230, v=spf1 ip4:91.210.235.40 include:spf.web`
SOA	1	`ns1.webhostingireland.ie admins.hostingi`

Analysis

Hierarchy

core-em.com is a parent domain of mail.core-em.com.

Mail Server Role

The MX record for core-em.com points back to core-em.com — it is its own mail server.

coreem-com01b.mail.protection.outlook.com routinely functions as a mail server together with core-em.com.

IP Addresses

core-em.com directs to one IP number, which is 91.210.235.40.

Among the host names that share IP numbers with core-em.com are glenmur.com, bdbc.ie, heskap.com and two others.

Name Servers

core-em.com is served by three name servers: ns1.webhostingireland.ie, ns2.webhostingireland.ie and ns3.webhostingireland.ie.

core-em.com shares at least some of its name servers with other domains, including talentspot.ie, prolink.ie, bbosca.com and two others.

These name servers are frequently seen alongside the name servers ns4.webhostingireland.eu.

ns1.webhostingireland.ie has IP address 91.210.232.8, ns2.webhostingireland.ie has IP address 52.16.7.155 and ns3.webhostingireland.ie has IP address 185.43.234.232 — one address each.

Mail Servers

core-em.com delegates mail to two mail servers, namely core-em.com and coreem-com01b.mail.protection.outlook.com.

Host names resolving to 8 IP numbers:

coreem-com01b.mail.protection.outlook.com maps to 52.101.73.1, 52.101.73.6, 52.101.73.19 and 5 additional IP addresses.

Hosts that resolve to one IP address:

core-em.com resolves to the IP address 91.210.235.40.