`fernstrum.com`

DNSSEC	⚠️ Not signed
A	141.193.213.10^{🇺🇸 CLOUDFLARESPECTRUM141.193.213.0/24 WPEngine, Inc. 504 Lavaca Street, 1000, Austin, TX 78701, US}
A	141.193.213.11^{🇺🇸 CLOUDFLARESPECTRUM141.193.213.0/24 WPEngine, Inc. 504 Lavaca Street, 1000, Austin, TX 78701, US}
NS	`ns73.worldnic.com` ⭐
		A	162.159.26.27^{Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns74.worldnic.com`
		A	162.159.27.78^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`fernstrum-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c92c::3^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-dm5pr04cu00103.inbound.protection.outlook.com`
		A	2a01:111:f403:c946::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch4pr04cu00102.inbound.protection.outlook.com`
		A	2a01:111:f403:c946::3^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch0pr04cu00603.inbound.protection.outlook.com`
		A	2a01:111:f403:f90f::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sa9pr04cu00201.inbound.protection.outlook.com`
		A	52.101.9.0^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl2pr02cu00100.inbound.protection.outlook.com`
		A	52.101.9.21^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl2pr04cu00205.inbound.protection.outlook.com`
		A	52.101.11.15^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sa9pr02cu00207.inbound.protection.outlook.com`
		A	52.101.194.4^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ch4pr04cu00104.inbound.protection.outlook.com`
TXT	`_globalsign-domain-verification=_ahc9dTDfC7zY8XDBSPLW6MiMbFjmcOc030Ky_Nc-m`
TXT	`apple-domain-verification=mHQ7JmRkZcvrcZ8Z`
TXT	`d4itkmrdfb1rpcvq6fkceido59`
TXT	`v=spf1 include:_spf.fernstrum_com._d.easydmarc.pro -all`
SOA	`NS73.WORLDNIC.com`namehost@WORLDNIC.com serial=126021714

`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=1774586017

Subdomains

mail.fernstrum.com

Same first word

fernstrum.com

DNS History

16 records (5 active, 11 former)

○NSdns4.rr.com2007-08-15 → 2015-12-10 · 4 obs

● 2007-08-15 04:10:34
● 2015-12-10 22:19:22
○ 2016-03-29 03:13:10
○ 2026-03-27 05:00:50

○NSns1.biz.rr.com2007-08-15 → 2015-12-10 · 4 obs

● 2007-08-15 04:10:34
● 2015-12-10 22:19:22
○ 2016-03-29 03:13:10
○ 2026-03-27 05:00:50

○NSns2.biz.rr.com2007-08-15 → 2015-12-10 · 4 obs

● 2007-08-15 04:10:34
● 2015-12-10 22:19:22
○ 2016-03-29 03:13:10
○ 2026-03-27 05:00:50

●NSns73.worldnic.com2016-03-29 → 2026-03-27 · 3 obs

○ 2015-12-10 22:19:22
● 2016-03-29 03:13:10
● 2026-03-27 05:00:50

●NSns74.worldnic.com2016-03-29 → 2026-03-27 · 3 obs

○ 2015-12-10 22:19:22
● 2016-03-29 03:13:10
● 2026-03-27 05:00:50

○MXeast.smtp.exch031.serverdata.net2015-08-20 → 2016-03-29 · 5 obs

○ 2007-08-15 04:10:34
● 2015-08-20 07:46:46
● 2016-03-29 03:13:10
○ 2016-09-16 08:54:52
○ 2026-03-27 05:00:50

●MXfernstrum-com.mail.protection.outlook.com2016-09-16 → 2026-03-27 · 3 obs

○ 2016-03-29 03:13:10
● 2016-09-16 08:54:52
● 2026-03-27 05:00:50

○MXmail.fernstrum.com2007-08-15 → 2007-08-15 · 3 obs

● 2007-08-15 04:10:34
○ 2015-08-20 07:46:46
○ 2026-03-27 05:00:50

○MXsf1.biz.rr.com2007-08-15 → 2007-08-15 · 3 obs

● 2007-08-15 04:10:34
○ 2015-08-20 07:46:46
○ 2026-03-27 05:00:50

○MXsf2.biz.rr.com2007-08-15 → 2007-08-15 · 3 obs

● 2007-08-15 04:10:34
○ 2015-08-20 07:46:46
○ 2026-03-27 05:00:50

○MXwest.smtp.exch031.serverdata.net2015-08-20 → 2016-03-29 · 5 obs

○ 2007-08-15 04:10:34
● 2015-08-20 07:46:46
● 2016-03-29 03:13:10
○ 2016-09-16 08:54:52
○ 2026-03-27 05:00:50

○A128.121.167.2002007-08-15 → 2007-08-15 · 3 obs

● 2007-08-15 04:10:34
○ 2015-08-20 07:46:46
○ 2026-03-27 05:00:50

●A141.193.213.102026-03-27 → 2026-03-27 · 2 obs

○ 2017-05-17 07:02:10
● 2026-03-27 05:00:50

●A141.193.213.112026-03-27 → 2026-03-27 · 2 obs

○ 2017-05-17 07:02:10
● 2026-03-27 05:00:50

○A208.97.145.382015-08-20 → 2015-12-10 · 5 obs

○ 2007-08-15 04:10:34
● 2015-08-20 07:46:46
● 2015-12-10 22:19:22
○ 2016-03-29 03:13:10
○ 2026-03-27 05:00:50

○A64.25.122.1312016-03-29 → 2017-05-17 · 4 obs

○ 2015-12-10 22:19:22
● 2016-03-29 03:13:10
● 2017-05-17 07:02:10
○ 2026-03-27 05:00:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
fernstrum.com	ns73.worldnic.com, ns74.worldnic.com	2 records

✅ Authoritative Response

Server:162.159.26.27

NS records: ns73.worldnic.com, ns74.worldnic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for fernstrum.com (unsigned zone)

⏱️ Timing

Total: 338ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`141.193.213.10, 141.193.213.11`
NS	2	`ns73.worldnic.com, ns74.worldnic.com`
MX	1	`fernstrum-com.mail.protection.outlook.co`
TXT	4	`_globalsign-domain-verification=_ahc9dTD, apple-domain-verification=mHQ7JmRkZcvrcZ...`
SOA	1	`NS73.WORLDNIC.com namehost.WORLDNIC.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns73.worldnic.com, ns74.worldnic.com)

Analysis

Hierarchy

mail.fernstrum.com is a child of fernstrum.com.

IP Addresses

fernstrum.com has two IP numbers: 141.193.213.10 and 141.193.213.11.

Other host names, for instance botanicalconceptschicago.com, shermancommercial.com, labrcm.com, cyclr.com and imagepopstudio.com share IP numbers with fernstrum.com.

Name Servers

fernstrum.com's delegation uses two name servers: ns73.worldnic.com and ns74.worldnic.com.

fernstrum.com uses the same name server setup as other domains, such as scottpruett.com, fixclick.com, boyle.pro, airstructures.com and beamsoft.com.

Host names with a single IP address: ns73.worldnic.com points to 162.159.26.27; ns74.worldnic.com points to 162.159.27.78.

Mail Servers

A single mail server handles fernstrum.com, fernstrum-com.mail.protection.outlook.com.

Host fernstrum-com.mail.protection.outlook.com points to eight IPs: 2a01:111:f403:c92c::3, 2a01:111:f403:c946::2, 2a01:111:f403:c946::3, 2a01:111:f403:f90f::1, 52.101.9.0, 52.101.9.21, 52.101.11.15 and 52.101.194.4.

fernstrum.com - robtex.com

fernstrum.com

com

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`fernstrum.com`

`com`