`hartmann-exact.de`

DNSSEC	⚠️ Not signed
NS	`a.regfish-ns.net` ⭐
		A	2a02:2c0:0:21::aced:beef^{🇩🇪 REGFISH-AS2a02:2c0::/48 Vultr Customer Route}
			PTR	`a.regfish-ns.net`
		A	178.21.144.21^{🇩🇪 REGFISH-AS178.21.144.0/24 Vultr Customer Route}
			PTR	`a.regfish-ns.net`
NS	`b.regfish-ns.net`
		A	2a02:2c0:1:21::aced:beef^{🇩🇪 REGFISH-AS2a02:2c0:1::/48 Vultr Customer Route}
			PTR	`b.regfish-ns.net`
		A	178.21.145.21^{🇩🇪 REGFISH-AS178.21.145.0/24 Vultr Customer Route}
			PTR	`b.regfish-ns.net`
NS	`c.regfish-ns.net`
		A	2a02:2c0:2:21::aced:beef^{🇩🇪 REGFISH-AS2a02:2c0:2::/48 Vultr Customer Route}
			PTR	`c.regfish-ns.net`
		A	178.21.146.21^{🇩🇪 REGFISH-AS178.21.146.0/24 Vultr Customer Route}
			PTR	`c.regfish-ns.net`
MX	`sqmailgate01.tbits.net` ⭐
		A	178.250.224.10^{🇩🇪 TBITS-NET-AS178.250.224.0/21 TBits.net GmbH}
			PTR	`sqmailgate01.tbits.net`
TXT	`v=DMARC1;p=reject;sp=reject;adkim=s;aspf=s`
TXT	`v=spf1 -all`
SOA	`a.regfish-ns.net`dns@regfish-ns.net serial=1776264687

`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=1778633301

Same first word

hartmann-exact.de

hartmann-exact.com

DNS History

10 records (4 active, 6 former)

●NSa.regfish-ns.net2026-05-13 → 2026-05-13 · 2 obs

○ 2026-03-14 17:11:40
● 2026-05-13 01:18:18

●NSb.regfish-ns.net2026-05-13 → 2026-05-13 · 2 obs

○ 2026-03-14 17:11:40
● 2026-05-13 01:18:18

●NSc.regfish-ns.net2026-05-13 → 2026-05-13 · 2 obs

○ 2026-03-14 17:11:40
● 2026-05-13 01:18:18

○NSns1.tbits.net2008-02-15 → 2026-03-14 · 3 obs

● 2008-02-15 16:33:38
● 2026-03-14 17:11:40
○ 2026-05-13 01:18:18

○NSns2.tbits.net2008-02-15 → 2026-03-14 · 3 obs

● 2008-02-15 16:33:38
● 2026-03-14 17:11:40
○ 2026-05-13 01:18:18

●MXsqmailgate01.tbits.net2015-07-12 → 2026-05-13 · 3 obs

○ 2008-02-15 16:33:38
● 2015-07-12 12:19:50
● 2026-05-13 01:18:18

○MXsqmailgate02.tbits.net2015-07-12 → 2026-03-14 · 4 obs

○ 2008-02-15 16:33:38
● 2015-07-12 12:19:50
● 2026-03-14 17:11:40
○ 2026-05-13 01:18:18

○MXsqmailgate03.tbits.net2015-07-12 → 2026-03-14 · 4 obs

○ 2008-02-15 16:33:38
● 2015-07-12 12:19:50
● 2026-03-14 17:11:40
○ 2026-05-13 01:18:18

○MXsvmailgate1.tbits.net2008-02-15 → 2008-02-15 · 3 obs

● 2008-02-15 16:33:38
○ 2015-07-12 12:19:50
○ 2026-05-13 01:18:18

○A178.250.224.202015-07-12 → 2017-04-19 · 5 obs

○ 2008-02-15 16:33:38
● 2015-07-12 12:19:50
● 2017-04-19 20:13:08
○ 2026-02-28 13:42:14
○ 2026-05-13 01:18:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
hartmann-exact.de	a.regfish-ns.net, c.regfish-ns.net, b.regfish-ns.net	-

✅ Authoritative Response

Server:178.21.145.21

NS records: a.regfish-ns.net, c.regfish-ns.net, b.regfish-ns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hartmann-exact.de (unsigned zone)

⏱️ Timing

Total: 824ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	3	`a.regfish-ns.net, b.regfish-ns.net...`
MX	1	`sqmailgate01.tbits.net (pri: 10)`
TXT	2	`v=DMARC1;p=reject;sp=reject;adkim=s;aspf, v=spf1 -all`
SOA	1	`a.regfish-ns.net dns.regfish-ns.net`

Analysis

Name Servers

hartmann-exact.de is delegated to three name servers: a.regfish-ns.net, b.regfish-ns.net and c.regfish-ns.net.

hartmann-exact.de at least partially shares its name servers with other domains, for instance rhinomail.de, protegol.eu, gsst.de, sybig.de and ruell.org.

Host names with two IP numbers:

a.regfish-ns.net points to: 2a02:2c0:0:21::aced:beef and 178.21.144.21.

b.regfish-ns.net points to: 2a02:2c0:1:21::aced:beef and 178.21.145.21.

c.regfish-ns.net points to: 2a02:2c0:2:21::aced:beef and 178.21.146.21.

Mail Servers

hartmann-exact.de is served by a single mail server, sqmailgate01.tbits.net.

hartmann-exact.de shares the same mail server setup as other domains, for instance hupholzhandwerk.de.

hartmann-exact.de shares some mail servers with other domains, including powerday.de, fesbb.de, fokolar.org, stuckies.de and elfgenpick.de.

These mail servers are commonly used alongside the mail servers sqmailgate02.tbits.net and sqmailgate03.tbits.net.

sqmailgate01.tbits.net points to IP number 178.250.224.10.

hartmann-exact.de - robtex.com