`robert-rutkowski.de`

DNSSEC	⚠️ Not signed
A	195.242.103.115^{🇩🇪 WORK-AS195.242.100.0/22 RockingHoster}
		PTR	`server115.serverconfig.center`
NS	`ns11.celeros.de` ⭐
		A	195.242.100.11^{🇩🇪 WORK-AS195.242.100.0/22 RockingHoster}
			PTR	`ns1.domainrobot.center`
NS	`ns12.celeros.de`
		A	2a01:b1c0:1:20b::4^{🇩🇪 OPTEAMAX-AS2a01:b1c0::/32 Opteamax}
			PTR	`ns2.dnsserver.center`
		A	84.39.109.212^{🇩🇪 OPTEAMAX-AS84.39.104.0/21 Opteamax}
			PTR	`ns2.domainrobot.center`
NS	`ns13.celeros.de`
		A	2a01:b1c0:4:20b::4^{🇩🇪 OPTEAMAX-AS2a01:b1c0::/32 Opteamax}
			PTR	`ns3.dnsserver.center`
		A	84.39.110.156^{🇩🇪 OPTEAMAX-AS84.39.104.0/21 Opteamax}
			PTR	`ns3.domainrobot.center`
			PTR	`rocdns03.serverconfig.center`
NS	`ns14.celeros.de`
		A	2a01:b1c0:5:20b::4^{🇩🇪 OPTEAMAX-AS2a01:b1c0::/32 Opteamax}
			PTR	`ns4.dnsserver.center`
		A	84.39.108.4^{🇩🇪 OPTEAMAX-AS84.39.104.0/21 Opteamax}
			PTR	`ns4.domainrobot.center`
MX	`mail.robert-rutkowski.de` ⭐
		A	195.242.103.115^{🇩🇪 WORK-AS195.242.100.0/22 RockingHoster}
			PTR	`server115.serverconfig.center`
TXT	`v=spf1 a mx include:spf.celeros.cloud -all`
SOA	`ns11.celeros.de`noc@celeros.de 2026-03-26 #1

`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=1774692945

Subdomains

mail.robert-rutkowski.de

Same first word

robert-rutkowski.de

DNS History

11 records (6 active, 5 former)

●NSns11.celeros.de2026-03-02 → 2026-03-28 · 3 obs

○ 2018-05-09 03:35:02
● 2026-03-02 07:27:58
● 2026-03-28 10:26:32

●NSns12.celeros.de2026-03-02 → 2026-03-28 · 3 obs

○ 2018-05-09 03:35:02
● 2026-03-02 07:27:58
● 2026-03-28 10:26:32

●NSns13.celeros.de2026-03-02 → 2026-03-28 · 3 obs

○ 2018-05-09 03:35:02
● 2026-03-02 07:27:58
● 2026-03-28 10:26:32

●NSns14.celeros.de2026-03-02 → 2026-03-28 · 3 obs

○ 2018-05-09 03:35:02
● 2026-03-02 07:27:58
● 2026-03-28 10:26:32

○NSns5.celeros.de2018-05-09 → 2018-05-09 · 3 obs

● 2018-05-09 03:35:02
○ 2026-03-02 07:27:58
○ 2026-03-28 10:26:32

○NSns6.celeros.de2018-05-09 → 2018-05-09 · 3 obs

● 2018-05-09 03:35:02
○ 2026-03-02 07:27:58
○ 2026-03-28 10:26:32

○NSns7.celeros.de2018-05-09 → 2018-05-09 · 3 obs

● 2018-05-09 03:35:02
○ 2026-03-02 07:27:58
○ 2026-03-28 10:26:32

○NSns8.celeros.de2018-05-09 → 2018-05-09 · 3 obs

● 2018-05-09 03:35:02
○ 2026-03-02 07:27:58
○ 2026-03-28 10:26:32

●MXmail.robert-rutkowski.de2018-05-09 → 2026-03-28 · 2 obs

● 2018-05-09 03:35:02
● 2026-03-28 10:26:32

●A195.242.103.1152026-03-02 → 2026-03-28 · 3 obs

○ 2018-05-09 03:35:02
● 2026-03-02 07:27:58
● 2026-03-28 10:26:32

○A31.47.250.662018-05-09 → 2018-05-09 · 3 obs

● 2018-05-09 03:35:02
○ 2026-03-02 07:27:58
○ 2026-03-28 10:26:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
robert-rutkowski.de	ns11.celeros.de, ns14.celeros.de, ns13.celeros.de, ns12.celeros.de	7 records

✅ Authoritative Response

Server:195.242.100.11

NS records: ns11.celeros.de, ns14.celeros.de, ns13.celeros.de, ns12.celeros.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for robert-rutkowski.de (unsigned zone)

⏱️ Timing

Total: 687ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`195.242.103.115`
NS	4	`ns13.celeros.de, ns14.celeros.de...`
MX	1	`mail.robert-rutkowski.de (pri: 10)`
TXT	1	`v=spf1 a mx include:spf.celeros.cloud -a`
SOA	1	`ns11.celeros.de noc.celeros.de`

📌 Glue Records Collected

Total: 7

Out-of-bailiwick: 7 (ns11.celeros.de, ns12.celeros.de, ns13.celeros.de...)

Analysis

Hierarchy

robert-rutkowski.de is a parent of mail.robert-rutkowski.de.

IP Addresses

robert-rutkowski.de points to a single IP number: 195.242.103.115.

Other host names, for instance jens-brauer.de, mail.dornonline.de, soundgecko.de, mail.soundgecko.de and irisfolding.de share IP numbers with robert-rutkowski.de.

Name Servers

robert-rutkowski.de is delegated to four name servers: ns11.celeros.de, ns12.celeros.de, ns13.celeros.de and ns14.celeros.de.

robert-rutkowski.de at least partially shares name servers with other domains, for instance kientoff.de, spiritofstone.de, maler-rapp.at, beckord.org and sgsis.de.

Host names with two IPs:

ns12.celeros.de points to: 2a01:b1c0:1:20b::4 and 84.39.109.212.

ns13.celeros.de points to: 2a01:b1c0:4:20b::4 and 84.39.110.156.

ns14.celeros.de points to: 2a01:b1c0:5:20b::4 and 84.39.108.4.

Host names with one IP:

ns11.celeros.de points to: 195.242.100.11.

Mail Servers

robert-rutkowski.de is handled by a single mail server, mail.robert-rutkowski.de.

mail.robert-rutkowski.de points to a single IP: 195.242.103.115.

robert-rutkowski.de - robtex.com