duben.com - dns.ninja

`duben.com`

DNSSEC	⚠️ Not signed
A	2a00:1a90:4002:7::5^{🇬🇧 NUCO-12a00:1a90:4000::/34 Host-IT MKN}
A	159.253.56.217^{🇬🇧 NUCO-1159.253.56.0/21 Host-IT}
NS	`ns6.srv.host-it.co.uk` ⭐
		A	80.93.170.56^{🇬🇧 NUCO-280.93.170.0/24}
			PTR	`ns6.srv.host-it.co.uk`
NS	`ns4.srv.host-it.co.uk`
		A	80.93.170.54^{🇬🇧 NUCO-280.93.170.0/24}
			PTR	`ns4.srv.host-it.co.uk`
NS	`ns5.srv.host-it.com`
		A	80.93.170.55^{🇬🇧 NUCO-280.93.170.0/24}
			PTR	`ns5.srv.host-it.com`
MX	`smtp1.mx-in.host-it.co.uk` ⭐
		A	2a00:1a90:400f:1::4001^{🇬🇧 NUCO-12a00:1a90:4000::/34 Host-IT MKN}
			PTR	`smtp1.mx-in.host-it.co.uk`
		A	217.172.141.41^{🇬🇧 NUCO-1217.172.141.0/24 Nuco Technologies Ltd}
			PTR	`smtp1.mx-in.host-it.co.uk`
MX	`smtp2.mx-in.host-it.co.uk` ⭐
		A	2a00:1a90:400f:1::4002^{🇬🇧 NUCO-12a00:1a90:4000::/34 Host-IT MKN}
			PTR	`smtp2.mx-in.host-it.co.uk`
		A	217.172.141.42^{🇬🇧 NUCO-1217.172.141.0/24 Nuco Technologies Ltd}
			PTR	`smtp2.mx-in.host-it.co.uk`
MX	`mailbackup2.srv.host-it.co.uk`⁽⁴⁵⁾
		A	2a00:1a90:c101::20a5:151c^{🇬🇧 NUCO-12a00:1a90:c000::/34}
		A	92.60.101.41^{🇬🇧 NUCO-192.60.101.0/24}
			PTR	`mailbackup2.srv.host-it.co.uk`
MX	`mailbackup3.srv.host-it.co.uk`⁽⁵⁰⁾
		A	2a00:1a90:4001:c::631:8d29^{🇬🇧 NUCO-12a00:1a90:4000::/34 Host-IT MKN}
			PTR	`mailbackup3.srv.host-it.co.uk`
		A	159.253.63.191^{🇬🇧 NUCO-1159.253.56.0/21 Host-IT}
			PTR	`mailbackup3.srv.host-it.co.uk`
SOA	`ns6.srv.host-it.co.uk`oliver@thelee.pub 2025-08-13 #4

`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=1784273297

Same first word

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DNS History

17 records (9 active, 8 former)

○NSns-auth1.bucks.net2015-07-08 → 2019-12-21 · 4 obs

● 2015-07-08 04:08:08
● 2019-12-21 11:59:52
○ 2021-11-09 00:10:50
○ 2026-07-17 07:40:16

○NSns-auth2.bucks.net2015-07-08 → 2019-12-21 · 4 obs

● 2015-07-08 04:08:08
● 2019-12-21 11:59:52
○ 2021-11-09 00:10:50
○ 2026-07-17 07:40:16

○NSns-auth3.bucks.net2015-07-08 → 2019-12-21 · 4 obs

● 2015-07-08 04:08:08
● 2019-12-21 11:59:52
○ 2021-11-09 00:10:50
○ 2026-07-17 07:40:16

●NSns4.srv.host-it.co.uk2021-11-09 → 2026-07-17 · 3 obs

○ 2019-12-21 11:59:52
● 2021-11-09 00:10:50
● 2026-07-17 07:40:16

●NSns5.srv.host-it.com2021-11-09 → 2026-07-17 · 3 obs

○ 2019-12-21 11:59:52
● 2021-11-09 00:10:50
● 2026-07-17 07:40:16

●NSns6.srv.host-it.co.uk2021-11-09 → 2026-07-17 · 3 obs

○ 2019-12-21 11:59:52
● 2021-11-09 00:10:50
● 2026-07-17 07:40:16

●MXmailbackup2.srv.host-it.co.uk2021-11-09 → 2026-07-17 · 3 obs

○ 2019-12-21 11:59:52
● 2021-11-09 00:10:50
● 2026-07-17 07:40:16

●MXmailbackup3.srv.host-it.co.uk2021-11-09 → 2026-07-17 · 3 obs

○ 2019-12-21 11:59:52
● 2021-11-09 00:10:50
● 2026-07-17 07:40:16

○MXmx1.mail.bucks.net2015-07-08 → 2019-12-21 · 4 obs

● 2015-07-08 04:08:08
● 2019-12-21 11:59:52
○ 2021-11-09 00:10:50
○ 2026-07-17 07:40:16

○MXmx2.mail.bucks.net2015-07-08 → 2019-12-21 · 4 obs

● 2015-07-08 04:08:08
● 2019-12-21 11:59:52
○ 2021-11-09 00:10:50
○ 2026-07-17 07:40:16

○MXmx3.mail.bucks.net2015-07-08 → 2019-12-21 · 4 obs

● 2015-07-08 04:08:08
● 2019-12-21 11:59:52
○ 2021-11-09 00:10:50
○ 2026-07-17 07:40:16

●MXsmtp1.mx-in.host-it.co.uk2021-11-09 → 2026-07-17 · 3 obs

○ 2019-12-21 11:59:52
● 2021-11-09 00:10:50
● 2026-07-17 07:40:16

●MXsmtp2.mx-in.host-it.co.uk2021-11-09 → 2026-07-17 · 3 obs

○ 2019-12-21 11:59:52
● 2021-11-09 00:10:50
● 2026-07-17 07:40:16

●A159.253.56.2172021-11-09 → 2026-07-17 · 3 obs

○ 2019-12-21 11:59:52
● 2021-11-09 00:10:50
● 2026-07-17 07:40:16

●A2a00:1a90:4002:7::52021-11-09 → 2026-07-17 · 3 obs

○ 2019-12-21 11:59:52
● 2021-11-09 00:10:50
● 2026-07-17 07:40:16

○A2a02:cb0:0:1101::1512015-11-15 → 2019-12-21 · 4 obs

● 2015-11-15 13:30:48
● 2019-12-21 11:59:52
○ 2021-11-09 00:10:50
○ 2026-07-17 07:40:16

○A84.246.153.1512015-11-15 → 2019-12-21 · 4 obs

● 2015-11-15 13:30:48
● 2019-12-21 11:59:52
○ 2021-11-09 00:10:50
○ 2026-07-17 07:40:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
duben.com	ns4.srv.host-it.co.uk, ns6.srv.host-it.co.uk, ns5.srv.host-it.com	1 record

✅ Authoritative Response

Server:80.93.170.54

NS records: ns4.srv.host-it.co.uk, ns6.srv.host-it.co.uk, ns5.srv.host-it.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duben.com (unsigned zone)

⏱️ Timing

Total: 621ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`159.253.56.217`
AAAA	1	`2a00:1a90:4002:7::5`
NS	3	`ns4.srv.host-it.co.uk, ns5.srv.host-it.com...`
MX	4	`mailbackup3.srv.host-it.co.uk (pri: 50), mailbackup2.srv.host-it.co.uk (pri: 45)...`
SOA	1	`ns6.srv.host-it.co.uk oliver.thelee.pub`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns5.srv.host-it.com)

Analysis

IP Addresses

duben.com directs to two IP numbers, 159.253.56.217 and 2a00:1a90:4002:7::5

Among the host names that share IP numbers with duben.com are alisonbranagan.com, gladford.com, cilexcollege.org and two others.

Name Servers

duben.com has three name servers — ns5.srv.host-it.com, ns4.srv.host-it.co.uk and ns6.srv.host-it.co.uk.

duben.com has at least partial name server overlap with other domains, such as saintpetershigh.wigan.sch.uk, thefatguy.co.uk, mkdc.co.uk and two others.

It is common to find these name servers paired with the name servers ns5.srv.host-it.co.uk.

Each of the three hostnames points to exactly one IP address: ns5.srv.host-it.com points to 80.93.170.55, ns4.srv.host-it.co.uk points to 80.93.170.54 and ns6.srv.host-it.co.uk points to 80.93.170.56.

Mail Servers

Four mail servers handle email for duben.com: smtp1.mx-in.host-it.co.uk, smtp2.mx-in.host-it.co.uk, mailbackup2.srv.host-it.co.uk and mailbackup3.srv.host-it.co.uk.

duben.com shares at least some of its mail servers with other domains — for example shpresaprogramme.com, fridgeme.com, barrettsleisure.co.uk and two more.

smtp1.mx-in.host-it.co.uk, smtp2.mx-in.host-it.co.uk, mailbackup2.srv.host-it.co.uk and mailbackup3.srv.host-it.co.uk all point to exactly two IP numbers each: smtp1.mx-in.host-it.co.uk → 217.172.141.41 and 2a00:1a90:400f:1::4001; smtp2.mx-in.host-it.co.uk → 217.172.141.42 and 2a00:1a90:400f:1::4002; mailbackup2.srv.host-it.co.uk → 92.60.101.41 and 2a00:1a90:c101::20a5:151c; mailbackup3.srv.host-it.co.uk → 159.253.63.191 and 2a00:1a90:4001:c::631:8d29.