`vaillantgroup.net`

DNSSEC	⚠️ Not signed
A	81.0.235.16^{🇨🇿 CASABLANCA-AS81.0.232.0/21 Casablanca INT}
		PTR	`castor.dismedia.cz`
NS	`dns.nethost.cz` ⭐
		A	2001:1528:132::60^{🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network}
			PTR	`dns.nethost.cz`
		A	81.0.235.1^{🇨🇿 CASABLANCA-AS81.0.232.0/21 Casablanca INT}
			PTR	`dns.nethost.cz`
NS	`sns.nethost.sk`
		A	2a00:1ed0:46:200::1212:247^{🇨🇿 VSHOSTING2a00:1ed0::/32}
			PTR	`sns.nethost.sk`
		A	93.185.100.244^{🇨🇿 VSHOSTING93.185.96.0/20 II.}
			PTR	`sns.nethost.sk`
MX	`castor.dismedia.cz` ⭐
		A	81.0.235.16^{🇨🇿 CASABLANCA-AS81.0.232.0/21 Casablanca INT}
			PTR	`castor.dismedia.cz`
		A	81.0.235.168^{🇨🇿 CASABLANCA-AS81.0.232.0/21 Casablanca INT}
			PTR	`castor.dismedia.cz`
MX	`mail-relay-1.nethost.cz`⁽²⁰⁾
		A	2a00:1ed0:46:200::1212:247^{🇨🇿 VSHOSTING2a00:1ed0::/32}
			PTR	`sns.nethost.sk`
		A	93.185.100.244^{🇨🇿 VSHOSTING93.185.96.0/20 II.}
			PTR	`sns.nethost.sk`
SOA	`dns.nethost.cz`hostmaster@nethost.cz 2025-01-27 #1

`net`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1785954439

Same first word

vaillantgroup.nl

vaillantgroup.at

vaillantgroup.org

vaillantgroup.it

vaillantgroup.net

vaillantgroup.fr

DNS History

5 records (5 active, 0 former)

●NSdns.nethost.cz2015-04-21 → 2026-08-05 · 2 obs

● 2015-04-21 09:13:04
● 2026-08-05 18:57:36

●NSsns.nethost.sk2015-04-21 → 2026-08-05 · 2 obs

● 2015-04-21 09:13:04
● 2026-08-05 18:57:36

●MXcastor.dismedia.cz2015-04-21 → 2026-08-05 · 2 obs

● 2015-04-21 09:13:04
● 2026-08-05 18:57:36

●MXmail-relay-1.nethost.cz2015-04-21 → 2026-08-05 · 2 obs

● 2015-04-21 09:13:04
● 2026-08-05 18:57:36

●A81.0.235.162015-04-21 → 2026-08-05 · 2 obs

● 2015-04-21 09:13:04
● 2026-08-05 18:57:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	d.gtld-servers.net, j.gtld-servers.net, f.gtld-servers.net, c.gtld-servers.net...	-
vaillantgroup.net	dns.nethost.cz, sns.nethost.sk	-

✅ Authoritative Response

Server:81.0.235.1

NS records: dns.nethost.cz, sns.nethost.sk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for vaillantgroup.net (unsigned zone)

⏱️ Timing

Total: 744ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.0.235.16`
NS	2	`sns.nethost.sk, dns.nethost.cz`
MX	2	`castor.dismedia.cz (pri: 10), mail-relay-1.nethost.cz (pri: 20)`
SOA	1	`dns.nethost.cz hostmaster.nethost.cz`

Analysis

IP Addresses

vaillantgroup.net has exactly one IP address — 81.0.235.16.

p13.cz, vaillantgroup.org, tests4space.com plus two other host names have IP numbers in common with vaillantgroup.net.

Name Servers

vaillantgroup.net has two authoritative name servers — dns.nethost.cz and sns.nethost.sk.

The name server configuration of vaillantgroup.net is shared with other domains, for instance adwork.cz, artiga.cz, babysticker.at and two others.

vaillantgroup.net shares at least some of its name servers with other domains, including autoskola-horcicka.com, kruciata.sk, tamipa.cz and two others.

These name servers are frequently seen alongside tns.nethost.eu, sns.nethost.cz, dns.levny-hosting.cz and 4 other name servers.

Both dns.nethost.cz and sns.nethost.sk have two IP addresses each. dns.nethost.cz resolves to 81.0.235.1 and 2001:1528:132::60; sns.nethost.sk resolves to 93.185.100.244 and 2a00:1ed0:46:200::1212:247.

Mail Servers

vaillantgroup.net uses two mail servers, castor.dismedia.cz and mail-relay-1.nethost.cz.

The mail server setup of vaillantgroup.net is identical to that of domains like terko.cz, karpatia.cz and dismedia.cz.

At least some of the mail servers used by vaillantgroup.net are shared with other domains: fumigace.cz, bali-dovolena.info, coolnalepky.sk and two others among them.

It is common to find these mail servers paired with the mail servers mail-1.hostime.cz, mail-2.nethost.cz and mail-1.nethost.cz, as well as two others.

Both castor.dismedia.cz and mail-relay-1.nethost.cz have two IP addresses each. castor.dismedia.cz resolves to 81.0.235.16 and 81.0.235.168; mail-relay-1.nethost.cz resolves to 93.185.100.244 and 2a00:1ed0:46:200::1212:247.

vaillantgroup.net - robtex.com