`querdenke.at`

DNSSEC	⚠️ Not signed
A	2a0a:4cc0:5:1c2::19:4952^{🇦🇹 netcup-AS2a0a:4cc0::/43}
A	89.58.21.9^{🇩🇪 netcup-AS89.58.16.0/21}
NS	`root-dns.netcup.net` ⭐
		A	2a03:4000:0:1::e1e1^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
			PTR	`root-dns.netcup.net`
		A	46.38.225.225^{🇩🇪 netcup-AS46.38.225.0/24}
			PTR	`root-dns.netcup.net`
NS	`second-dns.netcup.net`
		A	2a03:4000:2:24b::c7c7^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
			PTR	`second-dns.netcup.net`
		A	37.221.199.199^{🇩🇪 netcup-AS37.221.196.0/22}
			PTR	`second-dns.netcup.net`
NS	`third-dns.netcup.net`
		A	2a03:4001:0:106::3f44^{🇩🇪 netcup-AS2a03:4001::/32 NETCUP-GMBH}
			PTR	`third-dns.netcup.net`
		A	188.68.63.68^{🇩🇪 netcup-AS188.68.63.0/24 NETCUP-GMBH}
			PTR	`third-dns.netcup.net`
MX	`mail.querdenke.at` ⭐
		A	89.58.21.11^{🇩🇪 netcup-AS89.58.16.0/21}
			PTR	`mx150b.netcup.net`
MX	`mx150b.netcup.net`⁽⁵⁰⁾
		A	2a0a:4cc0:4:6:d885:a5ff:fe05:2049^{🇦🇹 netcup-AS2a0a:4cc0::/43}
			PTR	`mx150b.netcup.net`
		A	89.58.21.11^{🇩🇪 netcup-AS89.58.16.0/21}
			PTR	`mx150b.netcup.net`
TXT	`v=spf1 mx a include:_spf.webhosting.systems ~all`
SOA	`root-dns.netcup.net`dnsadmin@netcup.net 2024-01-18 #19

`at`

	DNSSEC	🔒 Signed (DS record present)
	NS	`dns.nic.at` ⭐
	NS	`d.ns.at`
	NS	`j.ns.at`
	NS	`n.ns.at`
	NS	`ns1.univie.ac.at`
	NS	`ns2.univie.ac.at`
	NS	`r.ns.at`
	NS	`u.ns.at`
	SOA	`dns.nic.at`domain-admin@univie.ac.at serial=1774623602

Subdomains

mail.querdenke.at

Same first word

querdenke.de

querdenke.at

querdenke.com

DNS History

12 records (7 active, 5 former)

○NSns1.mmc.at2015-05-27 → 2017-01-09 · 4 obs

● 2015-05-27 23:29:56
● 2017-01-09 15:22:52
○ 2026-02-18 22:14:42
○ 2026-03-27 16:04:38

○NSns2.mmc.at2015-05-27 → 2017-01-09 · 4 obs

● 2015-05-27 23:29:56
● 2017-01-09 15:22:52
○ 2026-02-18 22:14:42
○ 2026-03-27 16:04:38

●NSroot-dns.netcup.net2026-02-18 → 2026-03-27 · 3 obs

○ 2017-01-09 15:22:52
● 2026-02-18 22:14:42
● 2026-03-27 16:04:38

●NSsecond-dns.netcup.net2026-02-18 → 2026-03-27 · 3 obs

○ 2017-01-09 15:22:52
● 2026-02-18 22:14:42
● 2026-03-27 16:04:38

●NSthird-dns.netcup.net2026-02-18 → 2026-03-27 · 3 obs

○ 2017-01-09 15:22:52
● 2026-02-18 22:14:42
● 2026-03-27 16:04:38

●MXmail.querdenke.at2026-02-18 → 2026-03-27 · 3 obs

○ 2017-01-09 15:22:52
● 2026-02-18 22:14:42
● 2026-03-27 16:04:38

○MXmailw.sih.co.at2017-01-09 → 2017-01-09 · 4 obs

○ 2016-04-29 10:35:56
● 2017-01-09 15:22:52
○ 2026-02-18 22:14:42
○ 2026-03-27 16:04:38

○MXmx.querdenke.at2015-05-27 → 2016-04-29 · 4 obs

● 2015-05-27 23:29:56
● 2016-04-29 10:35:56
○ 2017-01-09 15:22:52
○ 2026-03-27 16:04:38

●MXmx150b.netcup.net2026-02-18 → 2026-03-27 · 3 obs

○ 2017-01-09 15:22:52
● 2026-02-18 22:14:42
● 2026-03-27 16:04:38

●A2a0a:4cc0:5:1c2::19:49522026-02-18 → 2026-03-27 · 3 obs

○ 2017-01-09 15:22:52
● 2026-02-18 22:14:42
● 2026-03-27 16:04:38

●A89.58.21.92026-02-18 → 2026-03-27 · 3 obs

○ 2017-01-09 15:22:52
● 2026-02-18 22:14:42
● 2026-03-27 16:04:38

○A91.250.113.792015-05-27 → 2017-01-09 · 4 obs

● 2015-05-27 23:29:56
● 2017-01-09 15:22:52
○ 2026-02-18 22:14:42
○ 2026-03-27 16:04:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
at	d.ns.at, u.ns.at, r.ns.at, j.ns.at...	-
querdenke.at	root-dns.netcup.net, third-dns.netcup.net, second-dns.netcup.net	-

✅ Authoritative Response

Server:188.68.63.68

NS records: root-dns.netcup.net, third-dns.netcup.net, second-dns.netcup.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for querdenke.at (unsigned zone)

⏱️ Timing

Total: 988ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`89.58.21.9`
AAAA	1	`2a0a:4cc0:5:1c2::19:4952`
NS	3	`third-dns.netcup.net, second-dns.netcup.net...`
MX	2	`mx150b.netcup.net (pri: 50), mail.querdenke.at (pri: 10)`
TXT	1	`v=spf1 mx a include:_spf.webhosting.syst`
SOA	1	`root-dns.netcup.net dnsadmin.netcup.net`

Analysis

Hierarchy

querdenke.at is the parent of mail.querdenke.at.

IP Addresses

querdenke.at resolves to two IP numbers: 2a0a:4cc0:5:1c2::19:4952 and 89.58.21.9.

other host names including dr-eichenbaum.at, ict-studio.at, autodiscover.e-arch.at, blazek.co.at and www.digit.at share IP numbers with querdenke.at.

Name Servers

querdenke.at is delegated to three name servers root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.

querdenke.at at least partially shares name servers with other domains, for instance heliant.de, tsvgoddelau.de, dynamicsofevolution.com, picotours.de and kurz-silosysteme.de.

Host names with two IP numbers:

root-dns.netcup.net points to: 2a03:4000:0:1::e1e1 and 46.38.225.225.

second-dns.netcup.net points to: 2a03:4000:2:24b::c7c7 and 37.221.199.199.

third-dns.netcup.net points to: 2a03:4001:0:106::3f44 and 188.68.63.68.

Mail Servers

Two mail servers handle querdenke.at: mail.querdenke.at and mx150b.netcup.net.

querdenke.at shares some mail servers with other domains, at least partially, for instance hotel-vienna.travel, vienna5.com, minik.at, benjamin-schmahl.de and vertrauensnetzwerk.net.

these mail servers are often used together with mail servers mail.hotel-vienna.travel, mail.vienna5.com, mail.minik.at, mail.benjamin-schmahl.de and mail.vertrauensnetzwerk.net.

Host names with two IP numbers: mx150b.netcup.net points to 2a0a:4cc0:4:6:d885:a5ff:fe05:2049 and 89.58.21.11.

Host names with one IP number: mail.querdenke.at points to 89.58.21.11.

Host names that point to 89.58.21.11: mx150b.netcup.net and mail.querdenke.at.

querdenke.at - robtex.com

querdenke.at

at

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`querdenke.at`

`at`