`contractbutler.de`

DNSSEC	⚠️ Not signed
A	212.227.9.179^{🇩🇪 IONOS-AS212.227.0.0/16 IONOS-PA-2}
NS	`ns1091.ui-dns.org` ⭐
		A	2001:8d8:fe:53:0:d9a0:535b:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1091.ui-dns.org`
		A	217.160.83.91^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1091.ui-dns.org`
NS	`ns1040.ui-dns.de`
		A	2001:8d8:fe:53:0:d9a0:5028:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1040.ui-dns.de`
		A	217.160.80.40^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1040.ui-dns.de`
NS	`ns1045.ui-dns.biz`
		A	2001:8d8:fe:53:0:d9a0:512d:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1045.ui-dns.biz`
		A	217.160.81.45^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1045.ui-dns.biz`
NS	`ns1084.ui-dns.com`
		A	2001:8d8:fe:53:0:d9a0:5254:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1084.ui-dns.com`
		A	217.160.82.84^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1084.ui-dns.com`
MX	`mx00.ionos.de` ⭐
		A	212.227.15.41^{🇩🇪 IONOS-AS212.227.0.0/16 IONOS-PA-2}
			PTR	`mx00.kundenserver.de`
MX	`mx01.ionos.de` ⭐
		A	217.72.192.67^{🇩🇪 IONOS-AS217.72.192.0/20 Web.de}
			PTR	`mx01.kundenserver.de`
TXT	`v=spf1 include:_spf-eu.ionos.com ~all`
SOA	`ns1091.ui-dns.org`hostmaster@1und1.com 2017-06-01 #11

`de`

	DNSSEC	🔒 Signed (DS record present)
	NS	`f.nic.de` ⭐
	NS	`a.nic.de`
	NS	`l.de.net` ⚠️ Not in parent delegation
	NS	`n.de.net` ⚠️ Not in parent delegation
	NS	`s.de.net` ⚠️ Not in parent delegation
	NS	`z.nic.de`
	SOA	`f.nic.de`dns-operations@denic.de serial=1774611799

Previously MX for

contractbutler.de

Same first word

contractbutler.com

contractbutler.de

DNS History

13 records (7 active, 6 former)

●NSns1040.ui-dns.de2020-02-15 → 2026-03-27 · 3 obs

○ 2017-03-24 15:22:58
● 2020-02-15 15:24:42
● 2026-03-27 12:08:08

●NSns1045.ui-dns.biz2020-02-15 → 2026-03-27 · 3 obs

○ 2017-03-24 15:22:58
● 2020-02-15 15:24:42
● 2026-03-27 12:08:08

●NSns1084.ui-dns.com2020-02-15 → 2026-03-27 · 3 obs

○ 2017-03-24 15:22:58
● 2020-02-15 15:24:42
● 2026-03-27 12:08:08

●NSns1091.ui-dns.org2020-02-15 → 2026-03-27 · 3 obs

○ 2017-03-24 15:22:58
● 2020-02-15 15:24:42
● 2026-03-27 12:08:08

○NSns65.1und1.de2015-07-16 → 2017-03-24 · 4 obs

● 2015-07-16 20:04:28
● 2017-03-24 15:22:58
○ 2020-02-15 15:24:42
○ 2026-03-27 12:08:08

○NSns66.1und1.de2015-07-16 → 2017-03-24 · 4 obs

● 2015-07-16 20:04:28
● 2017-03-24 15:22:58
○ 2020-02-15 15:24:42
○ 2026-03-27 12:08:08

○MXcontractbutler.de2015-07-16 → 2017-03-24 · 4 obs

● 2015-07-16 20:04:28
● 2017-03-24 15:22:58
○ 2020-02-15 15:24:42
○ 2026-03-27 12:08:08

●MXmx00.ionos.de2020-02-15 → 2026-03-27 · 3 obs

○ 2017-03-24 15:22:58
● 2020-02-15 15:24:42
● 2026-03-27 12:08:08

●MXmx01.ionos.de2020-02-15 → 2026-03-27 · 3 obs

○ 2017-03-24 15:22:58
● 2020-02-15 15:24:42
● 2026-03-27 12:08:08

○MXmx01.kundenserver.de2015-07-16 → 2017-03-24 · 4 obs

● 2015-07-16 20:04:28
● 2017-03-24 15:22:58
○ 2020-02-15 15:24:42
○ 2026-03-27 12:08:08

●A212.227.9.1792026-02-20 → 2026-03-27 · 3 obs

○ 2020-02-15 15:24:42
● 2026-02-20 14:52:14
● 2026-03-27 12:08:08

○A217.160.109.402015-07-16 → 2017-03-24 · 4 obs

● 2015-07-16 20:04:28
● 2017-03-24 15:22:58
○ 2020-02-15 15:24:42
○ 2026-03-27 12:08:08

○A87.106.84.1252020-02-15 → 2020-02-15 · 4 obs

○ 2017-03-24 15:22:58
● 2020-02-15 15:24:42
○ 2026-02-20 14:52:14
○ 2026-03-27 12:08:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
contractbutler.de	ns1084.ui-dns.com, ns1091.ui-dns.org, ns1040.ui-dns.de, ns1045.ui-dns.biz	-

✅ Authoritative Response

Server:217.160.82.84

NS records: ns1084.ui-dns.com, ns1091.ui-dns.org, ns1040.ui-dns.de, ns1045.ui-dns.biz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for contractbutler.de (unsigned zone)

⏱️ Timing

Total: 906ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`212.227.9.179`
NS	4	`ns1045.ui-dns.biz, ns1040.ui-dns.de...`
MX	2	`mx01.ionos.de (pri: 10), mx00.ionos.de (pri: 10)`
TXT	1	`v=spf1 include:_spf-eu.ionos.com ~all`
SOA	1	`ns1091.ui-dns.org hostmaster.1und1.com`

Analysis

IP Addresses

contractbutler.de resolves to one IP number: 212.227.9.179.

Other host names, for instance objectix.de, share IP numbers with contractbutler.de.

Name Servers

contractbutler.de is delegated to four name servers: ns1045.ui-dns.biz, ns1084.ui-dns.com, ns1040.ui-dns.de and ns1091.ui-dns.org.

contractbutler.de at least partially shares name servers with other domains, for instance fintags.com, architekt-weiller.de, apexjet.net, bukalova.com and ruizllama.com.

These name servers are commonly used with the following name servers: ns1045.ui-dns.com, ns1045.ui-dns.de, ns1045.ui-dns.org, ns1084.ui-dns.de, ns1084.ui-dns.org, ns1084.ui-dns.biz, ns1091.ui-dns.com, ns1091.ui-dns.de, ns1040.ui-dns.org and ns1040.ui-dns.com.

Host names with two IP numbers:

ns1045.ui-dns.biz points to 2001:8d8:fe:53:0:d9a0:512d:100 and 217.160.81.45; ns1084.ui-dns.com points to 2001:8d8:fe:53:0:d9a0:5254:100 and 217.160.82.84; ns1040.ui-dns.de points to 2001:8d8:fe:53:0:d9a0:5028:100 and 217.160.80.40; ns1091.ui-dns.org points to 2001:8d8:fe:53:0:d9a0:535b:100 and 217.160.83.91.

Mail Servers

Two mail servers handle contractbutler.de: mx00.ionos.de and mx01.ionos.de.

contractbutler.de shares the same mail server setup as other domains, for instance patrik.de, ra-lenz.de, skeyemac.de, luisenkirchhoefe.de and energy-re.eu.

Host names with one IP number:

mx00.ionos.de points to 212.227.15.41

mx01.ionos.de points to 217.72.192.67

contractbutler.de - robtex.com