`sso.bluesystem.de`

DNSSEC	⚠️ Not signed
A	91.195.241.232^{🇩🇪 SEDO91.195.240.0/23 -NET-PI}
NS	`sl1.sedo.com` ⭐ ⚠️ Not in parent delegation
		A	91.195.240.173^{🇩🇪 SEDO91.195.240.0/23 -NET-PI}
NS	`sl2.sedo.com` ⚠️ Not in parent delegation
		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

`bluesystem.de`

	DNSSEC	⚠️ Not signed
	A	91.195.241.232^{🇩🇪 SEDO91.195.240.0/23 -NET-PI}
	NS	`sl1.sedo.com` ⭐
	NS	`sl2.sedo.com`
	MX	`localhost` ⭐
	TXT	`v=spf1 -all`
	SOA	`sl1.sedo.com`hostmaster@sedo.de 2018-05-16 #1

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DNS History

4 records (4 active, 0 former)

●NSsl1.sedo.com2026-05-10 → 2026-05-11 · 2 obs

● 2026-05-10 06:24:18
● 2026-05-11 19:11:44

●NSsl2.sedo.com2026-05-10 → 2026-05-11 · 2 obs

● 2026-05-10 06:24:18
● 2026-05-11 19:11:44

●MXlocalhost2026-05-10 → 2026-05-11 · 2 obs

● 2026-05-10 06:24:18
● 2026-05-11 19:11:44

●A91.195.241.2322026-05-10 → 2026-05-11 · 2 obs

● 2026-05-10 06:24:18
● 2026-05-11 19:11:44

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:91.195.241.173

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bluesystem.de (unsigned zone)

⏱️ Timing

Total: 3787ms | 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

sso.bluesystem.de points to IP number: 91.195.241.232.

Other host names such as net1.online, cccm.eu, mx.mx.ac.amsterdam, magstudio.eu and claude-api.gearprice.de share IPs with sso.bluesystem.de.

Name Servers

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

sso.bluesystem.de shares the same name server setup as meinediaet.de, kadoshop.de, claude.hdconstruction.eu, visualife.eu and masar.eu.

Host names with a single IP:

sl1.sedo.com points to 91.195.240.173.

sl2.sedo.com points to 91.195.241.173.

Mail Servers

sso.bluesystem.de is handled by a single mail server, localhost.

The mail server setup for sso.bluesystem.de matches that of other domains, for instance blazecore.de, mapling.co.uk, propins.com, skyeyeweather.com and osmd.com.

sso.bluesystem.de - robtex.com