rectus.dk - dns.ninja

`rectus.dk`

DNSSEC	🔒 Signed (DS record present)
A	185.221.38.67^{🇩🇰 team-blue-denmark185.221.36.0/22 Zitcom A/S}
		PTR	`s1c4lb1.shopfactory.io`
NS	`ns01.one.com` ⭐
		A	2001:67c:28cc::10^{ONECOM-INFRA2001:67c:28cc::/48}
			PTR	`ns01.one.com`
		A	195.206.121.10^{ONECOM-INFRA195.206.121.0/24}
			PTR	`ns01.one.com`
NS	`ns02.one.com`
		A	2001:67c:3c0::10^{🇩🇰 ONECOM2001:67c:3c0::/48}
			PTR	`ns02.one.com`
		A	185.10.11.10^{ONECOM185.10.11.0/24}
			PTR	`ns02.one.com`
MX	`rectus-dk.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::6^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db4pr02cu00406.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::5^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am1pr04cu00105.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::e^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am7pr05cu00206.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::f^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am7pr05cu00307.inbound.protection.outlook.com`
		A	52.101.68.12^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db9pr02cu00204.inbound.protection.outlook.com`
		A	52.101.73.6^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am6pr04cu00306.inbound.protection.outlook.com`
		A	52.101.73.11^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am1pr04cu00103.inbound.protection.outlook.com`
		A	52.101.73.12^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am4pr0401cu00104.inbound.protection.outlook.com`
TXT	`MS=ms99522230`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
SOA	`ns01.one.com`hostmaster@one.com 2026-07-18 #1

`dk`

	DNSSEC	🔒 Signed (DS record present)
	NS	`b.nic.dk` ⭐
	NS	`c.nic.dk`
	NS	`h.nic.dk`
	NS	`l.nic.dk`
	NS	`s.nic.dk`
	NS	`t.nic.dk`
	TXT	`DK zone updateEpoch 1784885941localtime Fri Jul 24 11:39:01 2026gmtime Fri Ju...`
	SOA	`b.nic.dk`tech@punktum.dk serial=1784885941

Subdomains

mail.rectus.dk

Same first word

rectus.cz

rectus.pl

rectus.com

rectus.be

rectus.eu

rectus.es

rectus.dk

rectus.cn

rectus.co.jp

rectus.ro

rectus.ch

rectus.org

rectus.de

rectus.com.cn

rectus.nl

rectus.co.uk

rectus.no

rectus.hu

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certus.cz

certus.es

crestu.com

cutres.com

custer.ne.us

surtec.eu

surtec.com

cetsur.org

securt.cz

crutes.co.uk

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cruest.com

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scuter.com.ar

custer.net

scrute.com

certus.com.ua

certus.one

tsecur.com

sectur.gob.mx

certus.olsztyn.pl

scuter.com

surtec.net

cretus.net

certus.healthcare

recstu.co.jp

ustcer.com

eucrst.com

certus.net.br

surtec.uy

tuscer.de

scuter.it

tecsur.pe

recstu.com

ecrust.net

certus.com.pl

certus.se

certus.co.nz

surtec.es

cruset.ru

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cusert.com

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sucert.ro

rustec.net

ctuser.com

sectur.gov.ar

certus.cnt.br

custer.lt

certus.fr

cetrus.com.br

certus.app

trecus.net

certus.be

certus.co.uk

custer.com.au

certus.edu.pl

custer.cz

custer.ch

tecsur.net

ucerts.com

custer.de

surtec.info

certus.net

cretus.ru

scurte.com

certus.bydgoszcz.pl

escurt.site

certus.bytom.pl

surtec.sk

custer.it

tecrus.de

certus.mx

estruc.com

certus.cn

custer.me.uk

ctuser.net

certus.ru

certus.sk

curset.com

certus.hu

trecus.com

surtec.pt

scuter.org

custer.org

DNS History

17 records (4 active, 13 former)

●NSns01.one.com2026-02-23 → 2026-07-24 · 3 obs

○ 2017-04-07 03:30:36
● 2026-02-23 09:29:04
● 2026-07-24 10:17:40

●NSns02.one.com2026-02-23 → 2026-07-24 · 3 obs

○ 2017-04-07 03:30:36
● 2026-02-23 09:29:04
● 2026-07-24 10:17:40

○NSns1.gratisdns.dk2015-06-04 → 2017-04-07 · 4 obs

● 2015-06-04 08:47:42
● 2017-04-07 03:30:36
○ 2026-02-23 09:29:04
○ 2026-07-24 10:17:40

○NSns2.gratisdns.dk2015-06-04 → 2017-04-07 · 4 obs

● 2015-06-04 08:47:42
● 2017-04-07 03:30:36
○ 2026-02-23 09:29:04
○ 2026-07-24 10:17:40

○NSns3.gratisdns.dk2015-06-04 → 2017-04-07 · 4 obs

● 2015-06-04 08:47:42
● 2017-04-07 03:30:36
○ 2026-02-23 09:29:04
○ 2026-07-24 10:17:40

○NSns4.gratisdns.dk2015-06-04 → 2017-04-07 · 4 obs

● 2015-06-04 08:47:42
● 2017-04-07 03:30:36
○ 2026-02-23 09:29:04
○ 2026-07-24 10:17:40

○NSns5.gratisdns.dk2015-06-04 → 2017-04-07 · 4 obs

● 2015-06-04 08:47:42
● 2017-04-07 03:30:36
○ 2026-02-23 09:29:04
○ 2026-07-24 10:17:40

○MXbackup-mx.post.tele.dk2015-06-04 → 2017-04-07 · 4 obs

● 2015-06-04 08:47:42
● 2017-04-07 03:30:36
○ 2026-02-23 09:29:04
○ 2026-07-24 10:17:40

○MXmail.rectus.dk2015-06-04 → 2017-04-07 · 4 obs

● 2015-06-04 08:47:42
● 2017-04-07 03:30:36
○ 2026-02-23 09:29:04
○ 2026-07-24 10:17:40

○MXmx1.ic-mail.dk2016-09-07 → 2017-04-07 · 5 obs

○ 2015-06-04 08:47:42
● 2016-09-07 19:37:02
● 2017-04-07 03:30:36
○ 2026-02-23 09:29:04
○ 2026-07-24 10:17:40

○MXmx2.ic-mail.dk2016-09-07 → 2017-04-07 · 5 obs

○ 2015-06-04 08:47:42
● 2016-09-07 19:37:02
● 2017-04-07 03:30:36
○ 2026-02-23 09:29:04
○ 2026-07-24 10:17:40

○MXmx3.ic-mail.dk2016-09-07 → 2017-04-07 · 5 obs

○ 2015-06-04 08:47:42
● 2016-09-07 19:37:02
● 2017-04-07 03:30:36
○ 2026-02-23 09:29:04
○ 2026-07-24 10:17:40

●MXrectus-dk.mail.protection.outlook.com2026-02-23 → 2026-07-24 · 3 obs

○ 2017-04-07 03:30:36
● 2026-02-23 09:29:04
● 2026-07-24 10:17:40

●A185.221.38.672026-02-23 → 2026-07-24 · 3 obs

○ 2017-04-07 03:30:36
● 2026-02-23 09:29:04
● 2026-07-24 10:17:40

○A188.177.145.1622015-06-04 → 2016-04-02 · 4 obs

● 2015-06-04 08:47:42
● 2016-04-02 20:06:12
○ 2016-09-07 19:37:02
○ 2026-07-24 10:17:40

○A87.63.110.262016-09-07 → 2016-09-07 · 4 obs

○ 2016-04-02 20:06:12
● 2016-09-07 19:37:02
○ 2017-04-07 03:30:36
○ 2026-07-24 10:17:40

○A94.231.109.212017-04-07 → 2017-04-07 · 4 obs

○ 2016-09-07 19:37:02
● 2017-04-07 03:30:36
○ 2026-02-23 09:29:04
○ 2026-07-24 10:17:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dk	b.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk...	-
rectus.dk	ns01.one.com, ns02.one.com	-

✅ Authoritative Response

Server:195.206.121.10

NS records: ns01.one.com, ns02.one.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1009ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.221.38.67`
NS	2	`ns01.one.com, ns02.one.com`
MX	1	`rectus-dk.mail.protection.outlook.com (p`
TXT	2	`v=spf1 include:spf.protection.outlook.co, MS=ms99522230`
SOA	1	`ns01.one.com hostmaster.one.com`

Analysis

Hierarchy

mail.rectus.dk is a subdomain of rectus.dk.

IP Addresses

rectus.dk has exactly one IP address — 185.221.38.67.

drifton.dk, shoppool.dk, www.barnehageprofil.no plus two other host names have IP numbers in common with rectus.dk.

Name Servers

rectus.dk uses two name servers for its delegation: ns01.one.com and ns02.one.com.

The name server configuration of rectus.dk is shared with other domains, for instance ed.dk, finsend.be, synoptric.com and two others.

The two host names ns01.one.com and ns02.one.com each have a pair of IP addresses: ns01.one.com has 195.206.121.10 and 2001:67c:28cc::10, and ns02.one.com has 185.10.11.10 and 2001:67c:3c0::10.

Mail Servers

rectus.dk uses one mail server — rectus-dk.mail.protection.outlook.com.

rectus-dk.mail.protection.outlook.com has 8 IP addresses: 52.101.68.12, 52.101.73.6, 52.101.73.11 plus 5 more.