`polytechnische.de`

DNSSEC	⚠️ Not signed
A	78.47.70.177^{🇩🇪 Hetzner78.46.0.0/15 HETZNER-RZ-NBG-BLK5}
		PTR	`r76.hostingwerk.de`
NS	`ns15.domaincontrol.com` ⭐
		A	2603:5:21b0::8^{🇺🇸 GODADDY-DNS2603:5:21b0::/44}
			PTR	`ns15.domaincontrol.com`
		A	97.74.107.8^{🇺🇸 GODADDY-DNS97.74.106.0/23}
			PTR	`ns15.domaincontrol.com`
NS	`ns16.domaincontrol.com`
		A	2603:5:22b0::8^{🇺🇸 GODADDY-DNS2603:5:22b0::/44}
			PTR	`ns16.domaincontrol.com`
		A	173.201.75.8^{🇺🇸 GODADDY-DNS173.201.74.0/23}
			PTR	`ns16.domaincontrol.com`
MX	`portal.sptg.de` ⭐
		A	213.61.196.250^{🇩🇪 COLT213.61.0.0/16 -DE}
			PTR	`portal.sptg.de`
TXT	`v=spf1 a mx ip4:83.138.57.146 ip6:2a01:488:42:1000:b01c:220e:ff97:3b1b includ...`
SOA	`ns15.domaincontrol.com`dns@jomax.net 2026-05-13 #1

`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=1778863009

WOT: SAFE (61/100)

Same first word

polytechnische.de

DNS History

9 records (4 active, 5 former)

○NSns1.hans.hosteurope.de2015-08-18 → 2017-03-25 · 4 obs

● 2015-08-18 13:06:06
● 2017-03-25 08:42:10
○ 2026-02-15 19:50:20
○ 2026-05-15 17:01:22

●NSns15.domaincontrol.com2026-02-15 → 2026-05-15 · 3 obs

○ 2017-03-25 08:42:10
● 2026-02-15 19:50:20
● 2026-05-15 17:01:22

●NSns16.domaincontrol.com2026-02-15 → 2026-05-15 · 3 obs

○ 2017-03-25 08:42:10
● 2026-02-15 19:50:20
● 2026-05-15 17:01:22

○NSns2.hans.hosteurope.de2015-08-18 → 2017-03-25 · 4 obs

● 2015-08-18 13:06:06
● 2017-03-25 08:42:10
○ 2026-02-15 19:50:20
○ 2026-05-15 17:01:22

○MXmx0.polytechnische.de2015-08-18 → 2016-02-28 · 4 obs

● 2015-08-18 13:06:06
● 2016-02-28 13:47:30
○ 2016-07-08 18:48:56
○ 2026-05-15 17:01:22

●MXportal.sptg.de2016-07-08 → 2026-05-15 · 3 obs

○ 2016-02-28 13:47:30
● 2016-07-08 18:48:56
● 2026-05-15 17:01:22

○A109.75.181.1072015-08-18 → 2015-12-04 · 4 obs

● 2015-08-18 13:06:06
● 2015-12-04 09:15:12
○ 2016-02-28 13:47:30
○ 2026-05-15 17:01:22

○A46.30.63.1122016-02-28 → 2017-03-25 · 5 obs

○ 2015-12-04 09:15:12
● 2016-02-28 13:47:30
● 2017-03-25 08:42:10
○ 2026-02-15 19:50:20
○ 2026-05-15 17:01:22

●A78.47.70.1772026-02-15 → 2026-05-15 · 3 obs

○ 2017-03-25 08:42:10
● 2026-02-15 19:50:20
● 2026-05-15 17:01:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
polytechnische.de	ns15.domaincontrol.com, ns16.domaincontrol.com	-

✅ Authoritative Response

Server:97.74.107.8

NS records: ns15.domaincontrol.com, ns16.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for polytechnische.de (unsigned zone)

⏱️ Timing

Total: 2698ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`78.47.70.177`
NS	2	`ns15.domaincontrol.com, ns16.domaincontrol.com`
MX	1	`portal.sptg.de (pri: 40)`
TXT	1	`v=spf1 a mx ip4:83.138.57.146 ip6:2a01:4`
SOA	1	`ns15.domaincontrol.com dns.jomax.net`

Analysis

IP Addresses

polytechnische.de points to a single IP number: 78.47.70.177.

Other host names, for instance kgv-frankfurt.de, villa-metzler.de, sptg-alumni.de, diesterweg-stipendium.de and buerger-akademie.de share IP numbers with polytechnische.de.

Name Servers

polytechnische.de is delegated to two name servers: ns15.domaincontrol.com and ns16.domaincontrol.com.

polytechnische.de uses the same name server setup as other domains, for instance couchpotable.com, irishpubs.info, wormleyrealestate.com, it-service-rostock.com and loan2love.org.

Host names with two IP numbers:

The host ns15.domaincontrol.com points to 2603:5:21b0::8 and 97.74.107.8.

The host ns16.domaincontrol.com points to 2603:5:22b0::8 and 173.201.75.8.

Mail Servers

The mail server for polytechnische.de is portal.sptg.de.

polytechnische.de uses the same mail server setup as other domains, such as sptg.de and main-campus.de.

Host name portal.sptg.de resolves to IP 213.61.196.250.

polytechnische.de - robtex.com