`tender24.de`

DNSSEC	⚠️ Not signed
A	164.30.15.166^{🇩🇪 AS6878164.30.0.0/19}
		PTR	`ecs-164-30-15-166.reverse.open-telekom-cloud.com`
NS	`hydrogen.ns.hetzner.com` ⭐
		A	2a01:4f8:0:1::add:1098^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`hydrogen.ns.hetzner.com`
		A	213.133.100.98^{🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1}
			PTR	`hydrogen.ns.hetzner.com`
NS	`helium.ns.hetzner.de`
		A	2001:67c:192c::add:5^{🇩🇪 NORIS-NETWORK2001:67c:192c::/48}
			PTR	`helium.ns.hetzner.de`
		A	193.47.99.5^{🇩🇪 NORIS-NETWORK193.47.99.0/24}
			PTR	`helium.ns.hetzner.de`
NS	`oxygen.ns.hetzner.com`
		A	2a01:4f8:0:1::add:2992^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`oxygen.ns.hetzner.com`
		A	88.198.229.192^{🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4}
			PTR	`oxygen.ns.hetzner.com`
MX	`mx02.openit.de` ⭐
		A	2001:780:129:1::4^{🇩🇪 NORIS-NETWORK2001:780::/32 NORIS-AS12337-NET}
			PTR	`mx02.openit.de`
		A	213.95.203.108^{🇩🇪 NORIS-NETWORK213.95.0.0/16 NORIS-BLK2}
MX	`mx.openit.de`⁽¹⁰⁾
		A	2001:aa8:fffe::4^{🇩🇪 PLUSSERVER-ASN12001:aa8::/32 PlusServer GmbH Aggregat Duesseldorf}
			PTR	`mx.openit.de`
		A	217.69.65.200^{🇩🇪 PLUSSERVER-ASN1217.69.64.0/19 PlusServer GmbH Aggregat Duesseldorf}
			PTR	`mx.openit.de`
TXT	`v=spf1 mx ip4:151.106.68.128/26 ip4:80.237.206.224/27 include:mailbox.org a:o...`
TXT	`globalsign-domain-verification=4_mxjTq1HMA_FkJeq3wDrBMNhf85Sis1rls1yJqeWT`
TXT	`globalsign-domain-verification=lZ2xjlPeTenD-ob42FEF7VemMPUNFOxtGyPJlvKCuH`
TXT	`mx1mtvj23hby0mrhv1dtfrfhvlp6j2fn`
TXT	`otc-de-sel1._domainkey.tender24.de -> otc-de-sel1._domainkey.mms.t-systems-se...`
TXT	`otc-de-sel2._domainkey.tender24.de -> otc-de-sel2._domainkey.mms.t-systems-se...`
SOA	`hydrogen.ns.hetzner.com`dns@hetzner.com 2026-04-01 #6

`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=1778647736

Same first word

tender24.de

tender24.eu

DNS History

11 records (6 active, 5 former)

●NShelium.ns.hetzner.de2026-04-03 → 2026-05-13 · 3 obs

○ 2018-05-07 13:30:06
● 2026-04-03 23:46:24
● 2026-05-13 05:12:34

●NShydrogen.ns.hetzner.com2026-04-03 → 2026-05-13 · 3 obs

○ 2018-05-07 13:30:06
● 2026-04-03 23:46:24
● 2026-05-13 05:12:34

○NSns1.plusserver.com2018-05-07 → 2018-05-07 · 3 obs

● 2018-05-07 13:30:06
○ 2026-04-03 23:46:24
○ 2026-05-13 05:12:34

○NSns2.plusserver.com2018-05-07 → 2018-05-07 · 3 obs

● 2018-05-07 13:30:06
○ 2026-04-03 23:46:24
○ 2026-05-13 05:12:34

○NSns3.plusserver.com2026-04-03 → 2026-05-13 · 2 obs

○ 2026-04-03 23:46:24
○ 2026-05-13 05:12:34

●NSoxygen.ns.hetzner.com2026-04-03 → 2026-05-13 · 3 obs

○ 2018-05-07 13:30:06
● 2026-04-03 23:46:24
● 2026-05-13 05:12:34

●MXmx.openit.de2018-05-07 → 2026-05-13 · 2 obs

● 2018-05-07 13:30:06
● 2026-05-13 05:12:34

●MXmx02.openit.de2018-05-07 → 2026-05-13 · 2 obs

● 2018-05-07 13:30:06
● 2026-05-13 05:12:34

●A164.30.15.1662026-04-03 → 2026-05-13 · 3 obs

○ 2018-05-07 13:30:06
● 2026-04-03 23:46:24
● 2026-05-13 05:12:34

○A80.158.17.1642026-04-03 → 2026-05-13 · 2 obs

○ 2026-04-03 23:46:24
○ 2026-05-13 05:12:34

○A93.187.113.1162018-05-07 → 2018-05-07 · 3 obs

● 2018-05-07 13:30:06
○ 2026-04-03 23:46:24
○ 2026-05-13 05:12:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	z.nic.de, f.nic.de, a.nic.de	-
tender24.de	hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com, helium.ns.hetzner.de	-

✅ Authoritative Response

Server:88.198.229.192

NS records: hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com, helium.ns.hetzner.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tender24.de (unsigned zone)

⏱️ Timing

Total: 964ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`164.30.15.166`
NS	3	`oxygen.ns.hetzner.com, helium.ns.hetzner.de...`
MX	2	`mx.openit.de (pri: 5), mx02.openit.de (pri: 10)`
TXT	6	`otc-de-sel1._domainkey.tender24.de -> ot, otc-de-sel2._domainkey.tender24.de -> ot...`
SOA	1	`hydrogen.ns.hetzner.com dns.hetzner.com`

Analysis

IP Addresses

tender24.de points to a single IP number: 164.30.15.166.

Name Servers

The delegation for tender24.de is handled by three name servers: hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.

tender24.de at least partially shares name servers with other domains, for instance phone4.de, reisemobil-muenchen.de, detact.de, tryte.de and jfgvs.de.

these name servers are commonly used with ns1.first-ns.de, robotns2.second-ns.de and robotns3.second-ns.com.

Two IP numbers per host:

hydrogen.ns.hetzner.com points to 2a01:4f8:0:1::add:1098 and 213.133.100.98.

oxygen.ns.hetzner.com points to 2a01:4f8:0:1::add:2992 and 88.198.229.192.

helium.ns.hetzner.de points to 2001:67c:192c::add:5 and 193.47.99.5.

Mail Servers

tender24.de is handled by two mail servers: mx02.openit.de and mx.openit.de.

tender24.de uses the same mail server configuration as other domains, such as publikations-plattform.de, unternehmensregister.de, banz.esef-viewer.de, klingelton.de and esef-viewer.de.

tender24.de shares mail servers with other domains at least in part, for instance deutsch-lernen.info, webtravel.de, formular-anmeldung.de, iik-firmenservice.de and wirtschaftsdeutsch.info.

these mail servers are commonly used with heine.iik-duesseldorf.de, mail.iik-firmenservice.de and mail.webtravel.de.

Host names with two IP numbers: mx02.openit.de points to 2001:780:129:1::4 and 213.95.203.108; mx.openit.de points to 2001:aa8:fffe::4 and 217.69.65.200.

tender24.de - robtex.com

tender24.de

de

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`tender24.de`

`de`