`applicationhost.de`

DNSSEC	⚠️ Not signed
A	138.201.158.194^{🇩🇪 Hetzner138.201.0.0/16 HETZNER-RZ-BLK-ERX4}
		PTR	`is-0.htw-net.de`
NS	`ns1.first-ns.de` ⭐
		A	2a01:4f8:0:a101::a:1^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`ns1.first-ns.de`
		A	213.239.242.238^{🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2}
			PTR	`ns1.first-ns.de`
NS	`robotns2.second-ns.de`
		A	2a01:4f8:0:1::5ddc:2^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`robotns2.second-ns.de`
		A	213.133.100.103^{🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1}
			PTR	`robotns2.second-ns.de`
NS	`robotns3.second-ns.com`
		A	2001:67c:192c::add:a3^{🇩🇪 NORIS-NETWORK2001:67c:192c::/48}
			PTR	`robotns3.second-ns.com`
		A	193.47.99.3^{🇩🇪 NORIS-NETWORK193.47.99.0/24}
			PTR	`robotns3.second-ns.com`
MX	`heimdall.htw-net.de` ⭐
		A	195.50.145.218^{🇩🇪 VODANET195.50.128.0/18 ARCOR-IP}
TXT	`v=spf1 a:konfigurator.applicationhost.de a:s298229.applicationhost.de a:s7206...`
SOA	`ns1.first-ns.de`dns@hetzner.com 2026-04-14 #0

`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=1776983242

Subdomains

devel.applicationhost.de

s720627.applicationhost.de

s298229.applicationhost.de

Same first word

applicationhost.com

applicationhost.de

DNS History

5 records (5 active, 0 former)

●NSns1.first-ns.de2017-04-04 → 2026-04-23 · 2 obs

● 2017-04-04 10:51:50
● 2026-04-23 22:39:06

●NSrobotns2.second-ns.de2017-04-04 → 2026-04-23 · 2 obs

● 2017-04-04 10:51:50
● 2026-04-23 22:39:06

●NSrobotns3.second-ns.com2017-04-04 → 2026-04-23 · 2 obs

● 2017-04-04 10:51:50
● 2026-04-23 22:39:06

●MXheimdall.htw-net.de2020-03-14 → 2026-04-23 · 2 obs

● 2020-03-14 19:22:02
● 2026-04-23 22:39:06

●A138.201.158.1942026-03-26 → 2026-04-23 · 2 obs

● 2026-03-26 17:51:42
● 2026-04-23 22:39:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	z.nic.de, a.nic.de, f.nic.de	-
applicationhost.de	ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com	-

✅ Authoritative Response

Server:213.133.100.103

NS records: ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for applicationhost.de (unsigned zone)

⏱️ Timing

Total: 1422ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`138.201.158.194`
NS	3	`robotns3.second-ns.com, ns1.first-ns.de...`
MX	1	`heimdall.htw-net.de (pri: 10)`
TXT	1	`v=spf1 a:konfigurator.applicationhost.de`
SOA	1	`ns1.first-ns.de dns.hetzner.com`

Analysis

Hierarchy

applicationhost.de is a parent of devel.applicationhost.de, s720627.applicationhost.de and s298229.applicationhost.de.

IP Addresses

applicationhost.de points to a single IP number: 138.201.158.194.

other host names for instance jobet.at, lieblingsbadematte.info, is-0.htw-net.de, forward.htw-net.de and lieblingsteppich.org share IP numbers with applicationhost.de.

Name Servers

applicationhost.de is delegated to three name servers: robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.

applicationhost.de at least partially shares name servers with other domains, for instance e-score.ru, stempelfritz.de, servicebuero-jmd.de, klimaschutzaktiv.de and preiswerte-haustueren.de.

Host names with two IP numbers:

Host robotns3.second-ns.com points to 2001:67c:192c::add:a3 and 193.47.99.3.

Host ns1.first-ns.de points to 2a01:4f8:0:a101::a:1 and 213.239.242.238.

Host robotns2.second-ns.de points to 2a01:4f8:0:1::5ddc:2 and 213.133.100.103.

Mail Servers

applicationhost.de is handled by a single mail server, heimdall.htw-net.de.

Host name heimdall.htw-net.de points to IP address 195.50.145.218.

applicationhost.de - robtex.com