`server1.semtex-host.de`

DNSSEC	⚠️ Not signed
A	2a03:4000:46:57::1^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
		PTR	`server1.semtex-host.de`
A	45.83.106.136^{🇩🇪 netcup-AS45.83.104.0/22}

`semtex-host.de`

	DNSSEC	⚠️ Not signed
	A	2a03:4000:46:57::1^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
	A	45.83.106.136^{🇩🇪 netcup-AS45.83.104.0/22}
	NS	`etta.ns.cloudflare.com` ⭐
	NS	`quentin.ns.cloudflare.com`
	MX	`server1.semtex-host.de` ⭐
	TXT	`v=spf1 mx a:mail.semtex-host.de -all`
	SOA	`etta.ns.cloudflare.com`dns@cloudflare.com serial=2398648427

PTR for

136.106.83.45.in-addr.arpa

1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.7.5.0.0.6.4.0.0.0.0.0.4.3.0.a.2.ip6.arpa

MX for

semtex-host.de

netfire21.de

Same first word

server1.hu

server1.cloud

server1.club

server1.eu

server1.info

server1.lv

server1.cc

server1.net

server1.dk

server1.co.za

server1.bplaced.net

server1.de

server1.com.de

server1.pl

server1.com

server1.co.kr

server1.jp

server1.pro

server1.ca

server1.uk.com

server1.ge

server1.at

server1.bg

server1.3utilities.com

server1.no

server1.se

server1.net.br

server1.ch

server1.ru

server1.com.br

server1.co

server1.org

server1.gr

Similar names

1server.com.ua

1server.cz

1server.co.uk

1server.de

1server.fr

1server.cn

1server.com

resrve1.com

1server.info

1server.work

1server.ru

1server.xyz

1server.one

1server.nz

DNS History

3 records (2 active, 1 former)

○A188.68.33.1192017-04-03 → 2017-04-03 · 3 obs

● 2017-04-03 20:31:46
○ 2026-03-26 08:20:36
○ 2026-03-26 18:42:00

●A2a03:4000:46:57::12026-03-26 → 2026-03-26 · 3 obs

○ 2017-04-03 20:31:46
● 2026-03-26 08:20:36
● 2026-03-26 18:42:00

●A45.83.106.1362026-03-26 → 2026-03-26 · 3 obs

○ 2017-04-03 20:31:46
● 2026-03-26 08:20:36
● 2026-03-26 18:42:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
semtex-host.de	etta.ns.cloudflare.com, quentin.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.7

NS records: etta.ns.cloudflare.com, quentin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for semtex-host.de (unsigned zone)

⏱️ Timing

Total: 484ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`45.83.106.136`
AAAA	1	`2a03:4000:46:57::1`

Analysis

Mail Server Role

The mail server for semtex-host.de and netfire21.de is server1.semtex-host.de.

IP Addresses

server1.semtex-host.de points to two IP numbers: 2a03:4000:46:57::1 and 45.83.106.136.

Other host names, for instance semtex-host.de and server1.netfire21.de, share IP numbers with server1.semtex-host.de.

server1.semtex-host.de - robtex.com