`sprachschule-mortimer.de`

DNSSEC	⚠️ Not signed
A	45.156.111.40^{🇩🇪 VERTICAL-AS45.156.108.0/22 vertical GmbH network}
		PTR	`node34.securewebsystems.net`
NS	`ns01.securewebsystems.net` ⭐
		A	91.198.228.172^{🇩🇪 WEBSTYLE-AS91.198.228.0/24}
			PTR	`ns01.securewebsystems.net`
NS	`ns02.securewebsystems.net`
		A	45.156.111.21^{🇩🇪 VERTICAL-AS45.156.108.0/22 vertical GmbH network}
			PTR	`ns02.securewebsystems.net`
MX	`mx01.securewebsystems.net` ⭐
		A	91.198.228.73^{🇩🇪 WEBSTYLE-AS91.198.228.0/24}
			PTR	`mx01a.securewebsystems.net`
		A	91.198.228.74^{🇩🇪 WEBSTYLE-AS91.198.228.0/24}
			PTR	`mx01b.securewebsystems.net`
TXT	`v=spf1 ip4:45.156.111.40 include:cemsc.net include:node34.securewebsystems.ne...`
TXT	`google-site-verification=TJ9eoci8V35U24TPlJ3KBLfXzglYLAaGO2GVj_6q5rs`
SOA	`ns01.securewebsystems.net`reports@viscomp.bg 2025-02-14 #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=1777095094

Subdomains

mail.sprachschule-mortimer.de

DNS History

10 records (4 active, 6 former)

●NSns01.securewebsystems.net2026-04-25 → 2026-04-25 · 2 obs

○ 2018-11-05 01:31:44
● 2026-04-25 05:44:22

●NSns02.securewebsystems.net2026-04-25 → 2026-04-25 · 2 obs

○ 2018-11-05 01:31:44
● 2026-04-25 05:44:22

○NSns1.ruhrgebiet-onlineservices.de2015-05-21 → 2018-11-05 · 3 obs

● 2015-05-21 17:39:02
● 2018-11-05 01:31:44
○ 2026-04-25 05:44:22

○NSns2.ruhrgebiet-onlineservices.de2015-05-21 → 2018-11-05 · 3 obs

● 2015-05-21 17:39:02
● 2018-11-05 01:31:44
○ 2026-04-25 05:44:22

○MXmail.sprachschule-mortimer.de2015-05-21 → 2015-05-21 · 3 obs

● 2015-05-21 17:39:02
○ 2015-10-21 10:19:16
○ 2026-04-25 05:44:22

○MXmx01.ruhrgebiet-onlineservices.de2015-10-21 → 2018-11-05 · 4 obs

○ 2015-05-21 17:39:02
● 2015-10-21 10:19:16
● 2018-11-05 01:31:44
○ 2026-04-25 05:44:22

●MXmx01.securewebsystems.net2026-04-25 → 2026-04-25 · 2 obs

○ 2018-11-05 01:31:44
● 2026-04-25 05:44:22

●A45.156.111.402026-04-25 → 2026-04-25 · 2 obs

○ 2018-11-05 01:31:44
● 2026-04-25 05:44:22

○A94.156.146.212015-05-21 → 2016-01-18 · 4 obs

● 2015-05-21 17:39:02
● 2016-01-18 16:00:20
○ 2016-04-12 20:13:52
○ 2026-04-25 05:44:22

○A94.156.146.252016-04-12 → 2018-11-05 · 4 obs

○ 2016-01-18 16:00:20
● 2016-04-12 20:13:52
● 2018-11-05 01:31:44
○ 2026-04-25 05:44:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, l.de.net, n.de.net...	12 records
sprachschule-mortimer.de	ns02.securewebsystems.net, ns01.securewebsystems.net	-

✅ Authoritative Response

Server:91.198.228.172

NS records: ns02.securewebsystems.net, ns01.securewebsystems.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sprachschule-mortimer.de (unsigned zone)

⏱️ Timing

Total: 1311ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`45.156.111.40`
NS	2	`ns01.securewebsystems.net, ns02.securewebsystems.net`
MX	1	`mx01.securewebsystems.net (pri: 0)`
TXT	2	`v=spf1 ip4:45.156.111.40 include:cemsc.n, google-site-verification=TJ9eoci8V35U24T`
SOA	1	`ns01.securewebsystems.net reports.viscom`

📌 Glue Records Collected

Total: 12

In-bailiwick: 6 (a.nic.de, f.nic.de, z.nic.de...)

Out-of-bailiwick: 6 (l.de.net, n.de.net, s.de.net...)

Analysis

Hierarchy

The parent of mail.sprachschule-mortimer.de is sprachschule-mortimer.de.

IP Addresses

sprachschule-mortimer.de points to a single IP: 45.156.111.40.

Other host names, for instance schreinerei-ammerl.de, ak-p.de, dotzauer-sicherheitstechnik.de, spanferkelbraterei.com and kerngmbh.at share IP numbers with sprachschule-mortimer.de.

Name Servers

Two name servers ns01.securewebsystems.net and ns02.securewebsystems.net handle delegation for sprachschule-mortimer.de.

sprachschule-mortimer.de uses the same name server setup as other domains, for example gts-oil.com, hoidn.at, in-bau.de, rudrich.at and riegler-estriche.at.

Host names with one IP number: The host name ns01.securewebsystems.net points to 91.198.228.172 and the host name ns02.securewebsystems.net points to 45.156.111.21.

Mail Servers

sprachschule-mortimer.de is handled by a single mail server, mx01.securewebsystems.net.

sprachschule-mortimer.de has the same mail server setup as other domains, including green-residence.info, aw-technic.eu, starttronik.eu, invero.at and heuermann-seniorendienste.de.

Some mail servers are shared between sprachschule-mortimer.de and other domains, for example demldesign.de.

Host mx01.securewebsystems.net resolves to two IPs: 91.198.228.73 and 91.198.228.74.

sprachschule-mortimer.de - robtex.com