`qualibau.com`

DNSSEC	⚠️ Not signed
A	2001:67c:e94:0:1:5bef:c81e:1^{Blindspot2001:67c:e94::/48 THINLINE-BlindSpot}
		PTR	`kochanski.thinline.cz`
A	91.239.200.30^{🇨🇿 Blindspot91.239.200.0/23 THINLINE-BlindSpot}
NS	`ns1.thinline.cz` ⭐
		A	2001:67c:e94:0:1:5bef:c8f3:1^{Blindspot2001:67c:e94::/48 THINLINE-BlindSpot}
			PTR	`ns1.thinline.cz`
		A	91.239.200.243^{🇨🇿 Blindspot91.239.200.0/23 THINLINE-BlindSpot}
			PTR	`ns1.thinline.cz`
NS	`ns2.thinline.cz`
		A	2001:4de8:fa22:0:1:5264:602:1^{🇨🇿 QUANTCOM-AS2001:4de8::/32 Dial Telecom, a.s.}
			PTR	`ns2.thinline.cz`
		A	82.100.6.2^{🇨🇿 QUANTCOM-AS82.100.0.0/18 Dial Telecom, a.s.}
			PTR	`ns2.thinline.cz`
NS	`ns3.cesky-hosting.eu`
		A	2001:67c:e94:1:1:5bef:ca12:1^{Blindspot2001:67c:e94::/48 THINLINE-BlindSpot}
			PTR	`ns3.cesky-hosting.eu`
		A	91.239.202.18^{🇨🇿 Blindspot91.239.202.0/23 THINLINE-BlindSpot}
			PTR	`ns3.cesky-hosting.eu`
MX	`mx1d10.thinline.cz` ⭐
		A	2001:67c:e94:0:1:5bef:c80e:1^{Blindspot2001:67c:e94::/48 THINLINE-BlindSpot}
			PTR	`mx1d10.thinline.cz`
		A	91.239.200.14^{🇨🇿 Blindspot91.239.200.0/23 THINLINE-BlindSpot}
			PTR	`mx1d10.thinline.cz`
MX	`mx1b20.thinline.cz`⁽²⁰⁾
		A	2001:4de8:fa22:0:1:5264:603:1^{🇨🇿 QUANTCOM-AS2001:4de8::/32 Dial Telecom, a.s.}
			PTR	`mx1b20.thinline.cz`
		A	82.100.6.3^{🇨🇿 QUANTCOM-AS82.100.0.0/18 Dial Telecom, a.s.}
			PTR	`mx1b20.thinline.cz`
TXT	`_dmarc.qualibau.com`
TXT	`v=spf1 a include:spf.cesky-hosting.cz include:smtp1.uservoice.com include:spa...`
SOA	`ns1.thinline.cz`hostmaster@qualibau.com serial=20203194

`com`

	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=1777224626

Same first word

qualibau.com

DNS History

24 records (7 active, 17 former)

○NSns1.namebrightdns.com2015-07-15 → 2017-03-18 · 7 obs

● 2015-07-15 05:14:56
● 2015-11-23 14:11:30
○ 2016-02-29 20:06:24
● 2016-06-28 07:00:16
● 2017-03-18 06:16:32
○ 2020-02-22 10:32:02
○ 2026-04-26 17:38:12

●NSns1.thinline.cz2020-02-22 → 2026-04-26 · 3 obs

○ 2017-03-18 06:16:32
● 2020-02-22 10:32:02
● 2026-04-26 17:38:12

○NSns2.namebrightdns.com2015-07-15 → 2017-03-18 · 7 obs

● 2015-07-15 05:14:56
● 2015-11-23 14:11:30
○ 2016-02-29 20:06:24
● 2016-06-28 07:00:16
● 2017-03-18 06:16:32
○ 2020-02-22 10:32:02
○ 2026-04-26 17:38:12

●NSns2.thinline.cz2020-02-22 → 2026-04-26 · 3 obs

○ 2017-03-18 06:16:32
● 2020-02-22 10:32:02
● 2026-04-26 17:38:12

●NSns3.cesky-hosting.eu2020-02-22 → 2026-04-26 · 3 obs

○ 2017-03-18 06:16:32
● 2020-02-22 10:32:02
● 2026-04-26 17:38:12

○NSnsg1.namebrightdns.com2016-02-29 → 2016-02-29 · 4 obs

○ 2015-11-23 14:11:30
● 2016-02-29 20:06:24
○ 2016-06-28 07:00:16
○ 2026-04-26 17:38:12

○NSnsg2.namebrightdns.com2016-02-29 → 2016-02-29 · 4 obs

○ 2015-11-23 14:11:30
● 2016-02-29 20:06:24
○ 2016-06-28 07:00:16
○ 2026-04-26 17:38:12

○MXanmail.namebrightmail.com2015-07-15 → 2016-02-29 · 4 obs

● 2015-07-15 05:14:56
● 2016-02-29 20:06:24
○ 2016-06-28 07:00:16
○ 2026-04-26 17:38:12

●MXmx1b20.thinline.cz2026-02-14 → 2026-04-26 · 3 obs

○ 2016-06-28 07:00:16
● 2026-02-14 18:38:22
● 2026-04-26 17:38:12

●MXmx1d10.thinline.cz2026-02-14 → 2026-04-26 · 3 obs

○ 2016-06-28 07:00:16
● 2026-02-14 18:38:22
● 2026-04-26 17:38:12

○A107.23.42.502016-02-29 → 2016-02-29 · 4 obs

○ 2015-11-23 14:11:30
● 2016-02-29 20:06:24
○ 2016-06-28 07:00:16
○ 2026-04-26 17:38:12

●A2001:67c:e94:0:1:5bef:c81e:12026-02-14 → 2026-04-26 · 3 obs

○ 2020-02-22 10:32:02
● 2026-02-14 18:38:22
● 2026-04-26 17:38:12

○A2a00:1ed0:2:0:1:5bef:c836:12020-02-22 → 2020-02-22 · 4 obs

○ 2017-03-18 06:16:32
● 2020-02-22 10:32:02
○ 2026-02-14 18:38:22
○ 2026-04-26 17:38:12

○A34.206.157.642017-03-18 → 2017-03-18 · 4 obs

○ 2016-06-28 07:00:16
● 2017-03-18 06:16:32
○ 2020-02-22 10:32:02
○ 2026-04-26 17:38:12

○A52.200.243.1232016-06-28 → 2016-06-28 · 4 obs

○ 2016-02-29 20:06:24
● 2016-06-28 07:00:16
○ 2017-03-18 06:16:32
○ 2026-04-26 17:38:12

○A52.73.136.1402016-02-29 → 2016-02-29 · 4 obs

○ 2015-11-23 14:11:30
● 2016-02-29 20:06:24
○ 2016-06-28 07:00:16
○ 2026-04-26 17:38:12

○A54.152.144.2432016-06-28 → 2016-06-28 · 4 obs

○ 2016-02-29 20:06:24
● 2016-06-28 07:00:16
○ 2017-03-18 06:16:32
○ 2026-04-26 17:38:12

○A54.174.31.2542015-07-15 → 2015-11-23 · 4 obs

● 2015-07-15 05:14:56
● 2015-11-23 14:11:30
○ 2016-02-29 20:06:24
○ 2026-04-26 17:38:12

○A54.208.74.2152015-07-15 → 2015-11-23 · 4 obs

● 2015-07-15 05:14:56
● 2015-11-23 14:11:30
○ 2016-02-29 20:06:24
○ 2026-04-26 17:38:12

○A54.236.195.152017-03-18 → 2017-03-18 · 4 obs

○ 2016-06-28 07:00:16
● 2017-03-18 06:16:32
○ 2020-02-22 10:32:02
○ 2026-04-26 17:38:12

●A91.239.200.302026-02-14 → 2026-04-26 · 3 obs

○ 2020-02-22 10:32:02
● 2026-02-14 18:38:22
● 2026-04-26 17:38:12

○A91.239.200.542020-02-22 → 2020-02-22 · 4 obs

○ 2017-03-18 06:16:32
● 2020-02-22 10:32:02
○ 2026-02-14 18:38:22
○ 2026-04-26 17:38:12

○CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.com2015-07-15 → 2016-06-28 · 4 obs

● 2015-07-15 05:14:56
● 2016-06-28 07:00:16
○ 2017-03-18 06:16:32
○ 2026-04-26 17:38:12

○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2017-03-18 → 2017-03-18 · 4 obs

○ 2016-06-28 07:00:16
● 2017-03-18 06:16:32
○ 2020-02-22 10:32:02
○ 2026-04-26 17:38:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
qualibau.com	ns1.thinline.cz, ns2.thinline.cz, ns3.cesky-hosting.eu	-

✅ Authoritative Response

Server:91.239.202.18

NS records: ns1.thinline.cz, ns2.thinline.cz, ns3.cesky-hosting.eu

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for qualibau.com (unsigned zone)

⏱️ Timing

Total: 937ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.239.200.30`
AAAA	1	`2001:67c:e94:0:1:5bef:c81e:1`
NS	3	`ns1.thinline.cz, ns2.thinline.cz...`
MX	2	`mx1d10.thinline.cz (pri: 10), mx1b20.thinline.cz (pri: 20)`
TXT	2	`v=spf1 a include:spf.cesky-hosting.cz in, _dmarc.qualibau.com`
SOA	1	`ns1.thinline.cz hostmaster.qualibau.com`

Analysis

IP Addresses

qualibau.com resolves to two IP numbers: 2001:67c:e94:0:1:5bef:c81e:1 and 91.239.200.30.

Other host names, for instance wall-tent.com, ofina.cz, pojizdneleseni.cz, sensi.cz and www.kb-interier.cz share IP numbers with qualibau.com.

Name Servers

qualibau.com is delegated to three name servers: ns1.thinline.cz, ns2.thinline.cz and ns3.cesky-hosting.eu.

qualibau.com partially shares name servers with other domains; examples include fairart.cz, alumont.eu, dinaz.cz, rt8.cz and octopustools.sk.

Host names with two IP numbers:

ns1.thinline.cz points to 2001:67c:e94:0:1:5bef:c8f3:1 and 91.239.200.243.

ns2.thinline.cz points to 2001:4de8:fa22:0:1:5264:602:1 and 82.100.6.2.

ns3.cesky-hosting.eu points to 2001:67c:e94:1:1:5bef:ca12:1 and 91.239.202.18.

Mail Servers

qualibau.com is handled by two mail servers: mx1b20.thinline.cz and mx1d10.thinline.cz.

qualibau.com has the same mail server setup as other domains, including hunde-katzen.at, jednadvacitka.cz, alucad.net, bosoft.eu and hmedical.cz.

qualibau.com shares some mail servers with other domains, at least partially, such as g-vs.cz, herni-trezor.cz, martinah.com, apolopraha.cz and obec-lopenik.cz.

Host names with two IP numbers:

mx1b20.thinline.cz points to: 2001:4de8:fa22:0:1:5264:603:1 and 82.100.6.3

mx1d10.thinline.cz points to: 2001:67c:e94:0:1:5bef:c80e:1 and 91.239.200.14

qualibau.com - robtex.com

qualibau.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`qualibau.com`

`com`