`sequence.systems`

DNSSEC	⚠️ Not signed
A	3.33.139.32^{🇺🇸 Amazon3.33.128.0/20}
		PTR	`aeedc42b70c898c66.awsglobalaccelerator.com`
NS	`ha1.markmonitor.zone` ⭐
		A	2001:67c:1bc::5^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast}
			PTR	`ha1.markmonitor.zone`
		A	192.174.68.5^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net}
			PTR	`ha1.markmonitor.zone`
NS	`ha2.markmonitor.zone`
		A	2620:10a:80eb::6b^{🇨🇦 CIRA-22620:10a:80eb::/48 D-Zone Anycast Cloud 1}
			PTR	`ha2.markmonitor.zone`
		A	162.219.54.170^{🇨🇦 CIRA-2162.219.54.0/24 D-Zone Anycast Cloud1}
			PTR	`ha2.markmonitor.zone`
NS	`ha3.markmonitor.zone`
		A	2001:67c:10b8::5^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ha3.markmonitor.zone`
		A	176.97.158.5^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ha3.markmonitor.zone`
NS	`ha4.markmonitor.zone`
		A	2620:10a:80ec::6b^{🇨🇦 CIRA-32620:10a:80ec::/48 D-Zone IPv6 Anycast Cloud 2}
			PTR	`ha4.markmonitor.zone`
		A	162.219.55.170^{🇨🇦 CIRA-3162.219.55.0/24 D-Zone Anycast Cloud 2}
			PTR	`ha4.markmonitor.zone`
MX	`mx01.kolabnow.com` ⭐
		A	185.254.79.30^{🇨🇭 NTS185.254.76.0/22}
			PTR	`kolabnow.com`
		A	185.254.79.31^{🇨🇭 NTS185.254.76.0/22}
			PTR	`kolabnow.com`
MX	`mx02.kolabnow.com`⁽²⁰⁾
		A	185.254.79.30^{🇨🇭 NTS185.254.76.0/22}
			PTR	`kolabnow.com`
		A	185.254.79.31^{🇨🇭 NTS185.254.76.0/22}
			PTR	`kolabnow.com`
		A	185.254.79.32^{🇨🇭 NTS185.254.76.0/22}
			PTR	`mx.kolabnow.com`
		A	185.254.79.33^{🇨🇭 NTS185.254.76.0/22}
			PTR	`mx.kolabnow.com`
		A	185.254.79.34^{🇨🇭 NTS185.254.76.0/22}
			PTR	`mx.kolabnow.com`
		A	185.254.79.35^{🇨🇭 NTS185.254.76.0/22}
			PTR	`mx.kolabnow.com`
		A	185.254.79.36^{🇨🇭 NTS185.254.76.0/22}
			PTR	`mx.kolabnow.com`
		A	185.254.79.37^{🇨🇭 NTS185.254.76.0/22}
			PTR	`mx.kolabnow.com`
		A	185.254.79.38^{🇨🇭 NTS185.254.76.0/22}
			PTR	`mx.kolabnow.com`
		A	185.254.79.39^{🇨🇭 NTS185.254.76.0/22}
			PTR	`mx.kolabnow.com`
		A	185.254.79.40^{🇨🇭 NTS185.254.76.0/22}
			PTR	`mx.kolabnow.com`
		A	185.254.79.41^{🇨🇭 NTS185.254.76.0/22}
			PTR	`mx.kolabnow.com`
		A	185.254.79.42^{🇨🇭 NTS185.254.76.0/22}
			PTR	`mx.kolabnow.com`
		A	185.254.79.43^{🇨🇭 NTS185.254.76.0/22}
			PTR	`mx.kolabnow.com`
		A	185.254.79.44^{🇨🇭 NTS185.254.76.0/22}
			PTR	`mx.kolabnow.com`
		A	185.254.79.45^{🇨🇭 NTS185.254.76.0/22}
			PTR	`mx.kolabnow.com`
		A	185.254.79.46^{🇨🇭 NTS185.254.76.0/22}
			PTR	`mx.kolabnow.com`
		A	185.254.79.47^{🇨🇭 NTS185.254.76.0/22}
			PTR	`mx.kolabnow.com`
TXT	`MS=C44C557DF3B6C6FC58E9376EEC5E99A8859F5E20`
TXT	`kolab-verify=a8e1c801d8afa2049089aab143f0891c`
TXT	`v=spf1 mx mx:mykolab.com mx:kolabnow.com -all`
SOA	`ha1.markmonitor.zone`hostmaster@markmonitor.com 2022-03-21 #6

`systems`

	DNSSEC	🔒 Signed (DS record present)
	NS	`v0n0.nic.systems` ⭐
	NS	`v0n1.nic.systems`
	NS	`v0n2.nic.systems`
	NS	`v0n3.nic.systems`
	NS	`v2n0.nic.systems`
	NS	`v2n1.nic.systems`
	SOA	`v0n0.nic.systems`hostmaster@donuts.email serial=1786446666

Same first word

Similar names

cequense.com

secqueen.com

queensec.com

ecqueens.com

DNS History

17 records (7 active, 10 former)

●NSha1.markmonitor.zone2026-03-28 → 2026-08-11 · 3 obs

○ 2017-06-24 12:26:30
● 2026-03-28 10:31:26
● 2026-08-11 11:25:50

●NSha2.markmonitor.zone2026-03-28 → 2026-08-11 · 3 obs

○ 2017-06-24 12:26:30
● 2026-03-28 10:31:26
● 2026-08-11 11:25:50

●NSha3.markmonitor.zone2026-03-28 → 2026-08-11 · 3 obs

○ 2017-06-24 12:26:30
● 2026-03-28 10:31:26
● 2026-08-11 11:25:50

●NSha4.markmonitor.zone2026-03-28 → 2026-08-11 · 3 obs

○ 2017-06-24 12:26:30
● 2026-03-28 10:31:26
● 2026-08-11 11:25:50

○NSns10.sequence.zone2016-12-10 → 2017-06-24 · 4 obs

● 2016-12-10 22:33:40
● 2017-06-24 12:26:30
○ 2026-03-28 10:31:26
○ 2026-08-11 11:25:50

○NSns5.sequence.zone2016-12-10 → 2017-06-24 · 4 obs

● 2016-12-10 22:33:40
● 2017-06-24 12:26:30
○ 2026-03-28 10:31:26
○ 2026-08-11 11:25:50

○NSns6.sequence.zone2016-12-10 → 2017-06-24 · 4 obs

● 2016-12-10 22:33:40
● 2017-06-24 12:26:30
○ 2026-03-28 10:31:26
○ 2026-08-11 11:25:50

○NSns7.sequence.zone2016-12-10 → 2017-06-24 · 4 obs

● 2016-12-10 22:33:40
● 2017-06-24 12:26:30
○ 2026-03-28 10:31:26
○ 2026-08-11 11:25:50

○NSns8.sequence.zone2016-12-10 → 2017-06-24 · 4 obs

● 2016-12-10 22:33:40
● 2017-06-24 12:26:30
○ 2026-03-28 10:31:26
○ 2026-08-11 11:25:50

○NSns9.sequence.zone2016-12-10 → 2017-06-24 · 4 obs

● 2016-12-10 22:33:40
● 2017-06-24 12:26:30
○ 2026-03-28 10:31:26
○ 2026-08-11 11:25:50

●MXmx01.kolabnow.com2016-12-10 → 2026-08-11 · 2 obs

● 2016-12-10 22:33:40
● 2026-08-11 11:25:50

●MXmx02.kolabnow.com2016-12-10 → 2026-08-11 · 2 obs

● 2016-12-10 22:33:40
● 2026-08-11 11:25:50

●A3.33.139.322026-03-28 → 2026-08-11 · 3 obs

○ 2017-06-24 12:26:30
● 2026-03-28 10:31:26
● 2026-08-11 11:25:50

○A96.45.82.2512016-12-10 → 2017-06-24 · 4 obs

● 2016-12-10 22:33:40
● 2017-06-24 12:26:30
○ 2026-03-28 10:31:26
○ 2026-08-11 11:25:50

○A96.45.82.652016-12-10 → 2017-06-24 · 4 obs

● 2016-12-10 22:33:40
● 2017-06-24 12:26:30
○ 2026-03-28 10:31:26
○ 2026-08-11 11:25:50

○A96.45.83.1462016-12-10 → 2017-06-24 · 4 obs

● 2016-12-10 22:33:40
● 2017-06-24 12:26:30
○ 2026-03-28 10:31:26
○ 2026-08-11 11:25:50

○A96.45.83.392016-12-10 → 2017-06-24 · 4 obs

● 2016-12-10 22:33:40
● 2017-06-24 12:26:30
○ 2026-03-28 10:31:26
○ 2026-08-11 11:25:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
systems	v0n0.nic.systems, v0n1.nic.systems, v0n2.nic.systems, v0n3.nic.systems...	-
sequence.systems	ha1.markmonitor.zone, ha4.markmonitor.zone, ha3.markmonitor.zone, ha2.markmonitor.zone	-

✅ Authoritative Response

Server:162.219.54.170

NS records: ha1.markmonitor.zone, ha4.markmonitor.zone, ha3.markmonitor.zone, ha2.markmonitor.zone

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sequence.systems (unsigned zone)

⏱️ Timing

Total: 1710ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`3.33.139.32`
NS	4	`ha1.markmonitor.zone, ha2.markmonitor.zone...`
MX	2	`mx02.kolabnow.com (pri: 20), mx01.kolabnow.com (pri: 10)`
TXT	3	`v=spf1 mx mx:mykolab.com mx:kolabnow.com, kolab-verify=a8e1c801d8afa2049089aab143f...`
SOA	1	`ha1.markmonitor.zone hostmaster.markmoni`

Analysis

IP Addresses

sequence.systems resolves to one IP address: 3.33.139.32.

sams-club.ie, chainwearguide.com, bitmexso.com and two other host names share IP numbers with sequence.systems.

Name Servers

The authoritative name servers for sequence.systems are ha1.markmonitor.zone, ha2.markmonitor.zone, ha3.markmonitor.zone and ha4.markmonitor.zone.

sequence.systems has at least partial name server overlap with other domains, such as telecommshelter.com, excelsiorenroll.com, paccardigital.com and two others.

ns1.markmonitor.com, ns2.markmonitor.com and ns3.markmonitor.com — plus 4 other name servers — are commonly paired with these name servers.

ha1.markmonitor.zone, ha2.markmonitor.zone, ha3.markmonitor.zone and ha4.markmonitor.zone all point to exactly two IP numbers each: ha1.markmonitor.zone → 192.174.68.5 and 2001:67c:1bc::5; ha2.markmonitor.zone → 162.219.54.170 and 2620:10a:80eb::6b; ha3.markmonitor.zone → 176.97.158.5 and 2001:67c:10b8::5; ha4.markmonitor.zone → 162.219.55.170 and 2620:10a:80ec::6b.

Mail Servers

Mail for sequence.systems is handled by two mail servers — mx01.kolabnow.com and mx02.kolabnow.com.

sequence.systems uses an identical mail server configuration to several other domains — among them frh.no, deuxmille.be, udi.email and two more.

sequence.systems has at least partial mail server overlap with other domains such as opengroupware.ch, watsons.email, kolab.company and two more.

This set of mail servers commonly appears together with the mail servers mx03.kolabnow.com.

Hostnames that resolve to 18 IP addresses:

mx02.kolabnow.com resolves to 185.254.79.30, 185.254.79.31 and 185.254.79.32 among others, with 15 other IP addresses in total.

Hostnames that resolve to two IP addresses:

mx01.kolabnow.com resolves to two addresses: 185.254.79.30 and 185.254.79.31.

mx02.kolabnow.com along with mx01.kolabnow.com each resolve to 185.254.79.30 IP addresses.

mx02.kolabnow.com along with mx01.kolabnow.com each resolve to 185.254.79.31 IP addresses.

sequence.systems - robtex.com