cu-tech.de - dns.ninja

`cu-tech.de`

DNSSEC	⚠️ Not signed
A	2001:8d8:100f:f000::211^{🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910}
		PTR	`2001-08d8-100f-f000-0000-0000-0000-0211.elastic-ssl.ui-r.com`
A	217.160.0.68^{🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3}
NS	`ns1113.ui-dns.org` ⭐
		A	2607:f1c0:fe:53:185:132:35:113^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns1113.ui-dns.org`
		A	185.132.35.113^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns1113.ui-dns.org`
NS	`ns1057.ui-dns.de`
		A	2607:f1c0:fe:53:185:132:32:57^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns1057.ui-dns.de`
		A	185.132.32.57^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns1057.ui-dns.de`
NS	`ns1061.ui-dns.com`
		A	2607:f1c0:fe:53:185:132:34:61^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns1061.ui-dns.com`
		A	185.132.34.61^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns1061.ui-dns.com`
NS	`ns1115.ui-dns.biz`
		A	2607:f1c0:fe:53:185:132:33:115^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns1115.ui-dns.biz`
		A	185.132.33.115^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns1115.ui-dns.biz`
MX	`mail.protonmail.ch` ⭐
		A	176.119.200.128^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mail.protonmail.ch`
		A	185.70.42.128^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mail.protonmail.ch`
		A	185.205.70.128^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mail.protonmail.ch`
MX	`mailsec.protonmail.ch`⁽²⁰⁾
		A	176.119.200.129^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.70.42.129^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.205.70.129^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mailsec.protonmail.ch`
TXT	`protonmail-verification=a0c5a513b9917fd754ed8d1b302de40689da9eb9`
TXT	`v=spf1 include:_spf.protonmail.ch ~all`
SOA	`ns1113.ui-dns.org`hostmaster@1und1.com 2017-06-01 #15

`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=1786202166

Same first word

cu-tech.de

cu-tech.com

cu-tech.net

DNS History

14 records (8 active, 6 former)

●NSns1057.ui-dns.de2026-02-18 → 2026-08-08 · 3 obs

○ 2017-01-13 05:18:30
● 2026-02-18 11:57:08
● 2026-08-08 15:41:56

●NSns1061.ui-dns.com2026-02-18 → 2026-08-08 · 3 obs

○ 2017-01-13 05:18:30
● 2026-02-18 11:57:08
● 2026-08-08 15:41:56

●NSns1113.ui-dns.org2026-02-18 → 2026-08-08 · 3 obs

○ 2017-01-13 05:18:30
● 2026-02-18 11:57:08
● 2026-08-08 15:41:56

●NSns1115.ui-dns.biz2026-02-18 → 2026-08-08 · 3 obs

○ 2017-01-13 05:18:30
● 2026-02-18 11:57:08
● 2026-08-08 15:41:56

○NSns5.celeros.de2015-08-03 → 2017-01-13 · 4 obs

● 2015-08-03 02:56:22
● 2017-01-13 05:18:30
○ 2026-02-18 11:57:08
○ 2026-08-08 15:41:56

○NSns6.celeros.de2015-08-03 → 2017-01-13 · 4 obs

● 2015-08-03 02:56:22
● 2017-01-13 05:18:30
○ 2026-02-18 11:57:08
○ 2026-08-08 15:41:56

○NSns7.celeros.de2015-08-03 → 2017-01-13 · 4 obs

● 2015-08-03 02:56:22
● 2017-01-13 05:18:30
○ 2026-02-18 11:57:08
○ 2026-08-08 15:41:56

○NSns8.celeros.de2015-08-03 → 2017-01-13 · 4 obs

● 2015-08-03 02:56:22
● 2017-01-13 05:18:30
○ 2026-02-18 11:57:08
○ 2026-08-08 15:41:56

○MXmail.cu-tech.de2015-08-03 → 2017-01-13 · 4 obs

● 2015-08-03 02:56:22
● 2017-01-13 05:18:30
○ 2026-02-18 11:57:08
○ 2026-08-08 15:41:56

●MXmail.protonmail.ch2026-02-18 → 2026-08-08 · 3 obs

○ 2017-01-13 05:18:30
● 2026-02-18 11:57:08
● 2026-08-08 15:41:56

●MXmailsec.protonmail.ch2026-02-18 → 2026-08-08 · 3 obs

○ 2017-01-13 05:18:30
● 2026-02-18 11:57:08
● 2026-08-08 15:41:56

●A2001:8d8:100f:f000::2112026-02-18 → 2026-08-08 · 3 obs

○ 2017-01-13 05:18:30
● 2026-02-18 11:57:08
● 2026-08-08 15:41:56

●A217.160.0.682026-02-18 → 2026-08-08 · 3 obs

○ 2017-01-13 05:18:30
● 2026-02-18 11:57:08
● 2026-08-08 15:41:56

○A31.47.254.182015-08-03 → 2017-01-13 · 4 obs

● 2015-08-03 02:56:22
● 2017-01-13 05:18:30
○ 2026-02-18 11:57:08
○ 2026-08-08 15:41:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	f.nic.de, a.nic.de, z.nic.de	-
cu-tech.de	ns1113.ui-dns.org, ns1057.ui-dns.de, ns1061.ui-dns.com, ns1115.ui-dns.biz	-

✅ Authoritative Response

Server:185.132.33.115

NS records: ns1113.ui-dns.org, ns1057.ui-dns.de, ns1061.ui-dns.com, ns1115.ui-dns.biz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cu-tech.de (unsigned zone)

⏱️ Timing

Total: 880ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.160.0.68`
AAAA	1	`2001:8d8:100f:f000::211`
NS	4	`ns1057.ui-dns.de, ns1113.ui-dns.org...`
MX	2	`mailsec.protonmail.ch (pri: 20), mail.protonmail.ch (pri: 10)`
TXT	2	`protonmail-verification=a0c5a513b9917fd7, v=spf1 include:_spf.protonmail.ch ~all`
SOA	1	`ns1113.ui-dns.org hostmaster.1und1.com`

Analysis

IP Addresses

cu-tech.de points to the IP addresses 217.160.0.68 and 2001:8d8:100f:f000::211

grupolesmarines.com, vanillabrook.com, aquahelica.com and two other host names share IP numbers with cu-tech.de.

Name Servers

The authoritative name servers for cu-tech.de are ns1115.ui-dns.biz, ns1061.ui-dns.com, ns1057.ui-dns.de and ns1113.ui-dns.org.

There is at least partial name server overlap between cu-tech.de and other domains — hpsmedia.info, joseph-laroche.fr, strandhus-poel.de and two more among them.

These name servers regularly appear alongside ns1061.ui-dns.biz, ns1115.ui-dns.de, ns1061.ui-dns.de and 7 other name servers in NS record sets.

All four hostnames — ns1115.ui-dns.biz, ns1061.ui-dns.com, ns1057.ui-dns.de and ns1113.ui-dns.org — resolve to two IP numbers apiece: ns1115.ui-dns.biz to 185.132.33.115 and 2607:f1c0:fe:53:185:132:33:115; ns1061.ui-dns.com to 185.132.34.61 and 2607:f1c0:fe:53:185:132:34:61; ns1057.ui-dns.de to 185.132.32.57 and 2607:f1c0:fe:53:185:132:32:57; ns1113.ui-dns.org to 185.132.35.113 and 2607:f1c0:fe:53:185:132:35:113.

Mail Servers

Mail for cu-tech.de is handled by two mail servers — mail.protonmail.ch and mailsec.protonmail.ch.

cu-tech.de uses an identical mail server configuration to several other domains — among them vedia.fr, stephenhalbrook.com, cdctecnologia.com.br and two more.

cu-tech.de has at least partial mail server overlap with other domains such as fitzski.com, nobelsoft.be, kbarn.net and two more.

mail.protonmail.ch points to 176.119.200.128, 185.70.42.128 and 185.205.70.128. mailsec.protonmail.ch points to 176.119.200.129, 185.70.42.129 and 185.205.70.129. Both hosts resolve to three IP numbers.