holtec.com - dns.ninja

`holtec.com`

DNSSEC	⚠️ Not signed
A	74.220.219.70^{🇺🇸 EIGI74.220.192.0/19 Unified Layer}
		PTR	`box470.bluehost.com`
NS	`ns29.worldnic.com` ⭐
		A	162.159.26.132^{Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns30.worldnic.com`
		A	162.159.27.77^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`holtec-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c902::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj0pr03cu01602.inbound.protection.outlook.com`
		A	2a01:111:f403:c931::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sa9pr03cu00201.inbound.protection.outlook.com`
		A	2a01:111:f403:c946::7^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch5pr02cu00307.inbound.protection.outlook.com`
		A	2a01:111:f403:f905::3^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-dm5pr02cu00203.inbound.protection.outlook.com`
		A	52.101.9.0^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl2pr02cu00100.inbound.protection.outlook.com`
		A	52.101.9.26^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl0pr02cu00702.inbound.protection.outlook.com`
		A	52.101.11.9^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sn1pr02cu00101.inbound.protection.outlook.com`
		A	52.101.42.18^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-co1pr03cu00302.inbound.protection.outlook.com`
TXT	`vbKaTqgoVnemEQKD/AObvla2XI8QVKyxHVI4SdnNbvU4Dk9wIMMgwIIrv2nE0Kdwol9OV2uF91Sx9...`
TXT	`openai-domain-verification=dv-H2olEn4IL54vSxxo6xC6JYpq`
TXT	`MS=ms27826609`
TXT	`ms-domain-verification=f050d45d-f729-4edd-8303-0306870a9b11`
TXT	`atlassian-domain-verification=CJIbL5b3EKF1JgCcX47VQ7vcLeVFeHta6NgVmnCCven6kJz...`
TXT	`5kn0mcecpql0la2bpt3lamr81k`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
TXT	`apple-domain-verification=EOYduHtg0sYdEDMB`
TXT	`6I4JKUD797AJN0HPN6NH1RF6CK`
TXT	`17ubclbe4ha5h8bunhb9onhan6`
TXT	`7um3tvrmnm3t00slvp4jtnfa8`
SOA	`NS29.WORLDNIC.com`namehost@WORLDNIC.com serial=126072910

`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=1785626512

Subdomains

mail.holtec.com

license-ansys.holtec.com

Same first word

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telcoh.net

heltco.com

thecol.com

lochet.org

theloc.us

oltech.mx

techol.gr

cholet.eu

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ceholt.com

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clothe.ru

htelco.gr

hltcoe.org

hotelc.com

ecloth.ru

thecol.net

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lechot.fr

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elchot.in

oltech.szczecin.pl

techol.net

holect.com

cholet.de

lochte.info

lochet.eu

clothe.co

techlo.com

DNS History

16 records (4 active, 12 former)

○NSdns-master.paetec.net2015-08-11 → 2015-11-29 · 5 obs

○ 2009-07-02 20:55:24
● 2015-08-11 22:26:04
● 2015-11-29 18:12:08
○ 2016-03-15 17:57:50
○ 2026-08-01 23:31:44

○NSns1.paetec.net2009-07-02 → 2015-11-29 · 4 obs

● 2009-07-02 20:55:24
● 2015-11-29 18:12:08
○ 2016-03-15 17:57:50
○ 2026-08-01 23:31:44

○NSns2.paetec.net2009-07-02 → 2015-11-29 · 4 obs

● 2009-07-02 20:55:24
● 2015-11-29 18:12:08
○ 2016-03-15 17:57:50
○ 2026-08-01 23:31:44

●NSns29.worldnic.com2016-03-15 → 2026-08-01 · 3 obs

○ 2015-11-29 18:12:08
● 2016-03-15 17:57:50
● 2026-08-01 23:31:44

○NSns3.paetec.net2009-07-02 → 2015-11-29 · 4 obs

● 2009-07-02 20:55:24
● 2015-11-29 18:12:08
○ 2016-03-15 17:57:50
○ 2026-08-01 23:31:44

●NSns30.worldnic.com2016-03-15 → 2026-08-01 · 3 obs

○ 2015-11-29 18:12:08
● 2016-03-15 17:57:50
● 2026-08-01 23:31:44

○MXbackupmx.paetec.net2009-07-02 → 2009-07-02 · 3 obs

● 2009-07-02 20:55:24
○ 2015-08-11 22:26:04
○ 2026-08-01 23:31:44

●MXholtec-com.mail.protection.outlook.com2016-08-13 → 2026-08-01 · 3 obs

○ 2016-03-15 17:57:50
● 2016-08-13 16:45:58
● 2026-08-01 23:31:44

○MXlist.holtec.com2009-07-02 → 2009-07-02 · 3 obs

● 2009-07-02 20:55:24
○ 2015-08-11 22:26:04
○ 2026-08-01 23:31:44

○MXsmtp.holtec.com2009-07-02 → 2016-03-15 · 4 obs

● 2009-07-02 20:55:24
● 2016-03-15 17:57:50
○ 2016-08-13 16:45:58
○ 2026-08-01 23:31:44

○MXsmtp2.holtec.com2015-08-11 → 2016-03-15 · 5 obs

○ 2009-07-02 20:55:24
● 2015-08-11 22:26:04
● 2016-03-15 17:57:50
○ 2016-08-13 16:45:58
○ 2026-08-01 23:31:44

○A207.155.248.652009-07-02 → 2009-07-02 · 3 obs

● 2009-07-02 20:55:24
○ 2015-08-11 22:26:04
○ 2026-08-01 23:31:44

○A207.155.248.672009-07-02 → 2009-07-02 · 3 obs

● 2009-07-02 20:55:24
○ 2015-08-11 22:26:04
○ 2026-08-01 23:31:44

○A207.155.252.462009-07-02 → 2009-07-02 · 3 obs

● 2009-07-02 20:55:24
○ 2015-08-11 22:26:04
○ 2026-08-01 23:31:44

○A207.155.252.512009-07-02 → 2009-07-02 · 3 obs

● 2009-07-02 20:55:24
○ 2015-08-11 22:26:04
○ 2026-08-01 23:31:44

●A74.220.219.702015-08-11 → 2026-08-01 · 3 obs

○ 2009-07-02 20:55:24
● 2015-08-11 22:26:04
● 2026-08-01 23:31:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
holtec.com	ns29.worldnic.com, ns30.worldnic.com	2 records

✅ Authoritative Response

Server:162.159.27.77

NS records: ns29.worldnic.com, ns30.worldnic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for holtec.com (unsigned zone)

⏱️ Timing

Total: 351ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`74.220.219.70`
NS	2	`ns29.worldnic.com, ns30.worldnic.com`
MX	1	`holtec-com.mail.protection.outlook.com (`
TXT	11	`ms-domain-verification=f050d45d-f729-4ed, 17ubclbe4ha5h8bunhb9onhan6...`
SOA	1	`NS29.WORLDNIC.com namehost.WORLDNIC.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns29.worldnic.com, ns30.worldnic.com)

Analysis

Hierarchy

mail.holtec.com and license-ansys.holtec.com each fall under holtec.com as their parent domain.

IP Addresses

holtec.com resolves to just one IP address, 74.220.219.70.

Two other host names, along with johnburton.org, mail.johnburton.org and mail.holtecgovernance.com, also share IP numbers with holtec.com.

Name Servers

holtec.com is delegated to two name servers: ns29.worldnic.com and ns30.worldnic.com.

holtec.com shares its NS records with other domains, for example mayersteinberg.com, omegacabinetry.com, otterwearband.com and two others.

Both ns29.worldnic.com and ns30.worldnic.com have a single IP address each — ns29.worldnic.com resolves to 162.159.26.132 while ns30.worldnic.com resolves to 162.159.27.77.

Mail Servers

The sole mail server for holtec.com is holtec-com.mail.protection.outlook.com.

With 8 IP addresses total, holtec-com.mail.protection.outlook.com resolves to 52.101.9.0, 52.101.9.26, 52.101.11.9 and 5 others.