`hardnesstester.de`

DNSSEC	⚠️ Not signed
A	91.195.241.232^{🇩🇪 SEDO91.195.240.0/23 -NET-PI}
NS	`sl1.sedo.com` ⭐
		A	91.195.240.173^{🇩🇪 SEDO91.195.240.0/23 -NET-PI}
NS	`sl2.sedo.com`
		A	91.195.241.173^{🇩🇪 SEDO91.195.240.0/23 -NET-PI}
MX	`localhost` ⭐
TXT	`v=spf1 -all`
SOA	`sl1.sedo.com`hostmaster@sedo.de 2018-05-16 #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=1774630298

Same first word

hardnesstester.us

hardnesstester.de

hardnesstester.in

hardnesstester.com.cn

DNS History

5 records (4 active, 1 former)

●NSsl1.sedo.com2026-03-27 → 2026-03-27 · 1 obs

● 2026-03-27 17:04:48

●NSsl2.sedo.com2026-03-27 → 2026-03-27 · 1 obs

● 2026-03-27 17:04:48

●MXlocalhost2026-03-27 → 2026-03-27 · 1 obs

● 2026-03-27 17:04:48

○A127.0.0.12015-07-16 → 2018-07-22 · 3 obs

● 2015-07-16 17:21:50
● 2018-07-22 22:49:52
○ 2026-03-27 17:04:48

●A91.195.241.2322026-03-27 → 2026-03-27 · 2 obs

○ 2018-07-22 22:49:52
● 2026-03-27 17:04:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
hardnesstester.de	sl2.sedo.com, sl1.sedo.com	-

✅ Authoritative Response

Server:91.195.241.173

NS records: sl2.sedo.com, sl1.sedo.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hardnesstester.de (unsigned zone)

⏱️ Timing

Total: 917ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.195.241.232`
NS	2	`sl2.sedo.com, sl1.sedo.com`
MX	1	`localhost (pri: 0)`
TXT	1	`v=spf1 -all`
SOA	1	`sl1.sedo.com hostmaster.sedo.de`

Analysis

IP Addresses

hardnesstester.de points to a single IP number: 91.195.241.232.

other host names for instance mail.saluscenter.com, edukado.eu, starvision.eu, nettools.eu and mail.power-core.de share IP numbers with hardnesstester.de.

Name Servers

hardnesstester.de is delegated to two name servers: sl1.sedo.com and sl2.sedo.com.

hardnesstester.de shares the same name server setup as other domains, for example hellpizza.de, k-c-c.de, bizzcoin.de, changeme.eu and e-wire.de.

Host names with one IP number:

The host sl1.sedo.com points to 91.195.240.173 and the host sl2.sedo.com points to 91.195.241.173.

Mail Servers

hardnesstester.de is handled by a single mail server, localhost.

hardnesstester.de shares the same mail server setup as other domains, for instance linux-hardware.com, engenet.com, eed.nl, igai.de and sekerbank.de.

hardnesstester.de - robtex.com