`czech-jet.com`

DNSSEC	⚠️ Not signed
A	2001:67c:e94:1:1:5bef:cac8:1^{Blindspot2001:67c:e94::/48 THINLINE-BlindSpot}
		PTR	`replikant723.thinline.cz`
A	91.239.202.200^{🇨🇿 Blindspot91.239.202.0/23 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	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4023:c03::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dy-in-f26.1e100.net`
		A	142.251.2.27^{🇺🇸 Google142.251.2.0/24}
			PTR	`dl-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2607:f8b0:4023:3003::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`yulnkjt-in-f27.1e100.net`
		A	172.253.145.26^{🇺🇸 Google172.253.145.0/24}
			PTR	`yulnkjt-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4025:c01::1a^{🇵🇱 Google2a00:1450:4025::/48}
			PTR	`rd-in-f26.1e100.net`
		A	142.250.147.27^{🇺🇸 Google142.250.147.0/24}
			PTR	`rd-in-f27.1e100.net`
TXT	`google-site-verification=lzJVeh3T1pkuXdpZ11fRkWlff5L6pWQMcirY5LO2Va8`
TXT	`v=spf1 include:_spf.google.com ~all`
SOA	`ns1.thinline.cz`hostmaster@czech-jet.com serial=1533053941

`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=1774790597

Same first word

czech-jet.com

DNS History

13 records (10 active, 3 former)

●NSns1.thinline.cz2015-05-15 → 2026-03-29 · 2 obs

● 2015-05-15 01:40:44
● 2026-03-29 13:28:52

●NSns2.thinline.cz2015-05-15 → 2026-03-29 · 2 obs

● 2015-05-15 01:40:44
● 2026-03-29 13:28:52

●NSns3.cesky-hosting.eu2015-05-15 → 2026-03-29 · 2 obs

● 2015-05-15 01:40:44
● 2026-03-29 13:28:52

●MXalt1.aspmx.l.google.com2026-03-03 → 2026-03-29 · 3 obs

○ 2017-01-01 19:07:38
● 2026-03-03 17:02:30
● 2026-03-29 13:28:52

●MXalt2.aspmx.l.google.com2026-03-03 → 2026-03-29 · 3 obs

○ 2017-01-01 19:07:38
● 2026-03-03 17:02:30
● 2026-03-29 13:28:52

●MXalt3.aspmx.l.google.com2026-03-03 → 2026-03-29 · 3 obs

○ 2017-01-01 19:07:38
● 2026-03-03 17:02:30
● 2026-03-29 13:28:52

●MXalt4.aspmx.l.google.com2026-03-03 → 2026-03-29 · 3 obs

○ 2017-01-01 19:07:38
● 2026-03-03 17:02:30
● 2026-03-29 13:28:52

●MXaspmx.l.google.com2026-03-03 → 2026-03-29 · 3 obs

○ 2017-01-01 19:07:38
● 2026-03-03 17:02:30
● 2026-03-29 13:28:52

○MXmx1b20.thinline.cz2015-05-15 → 2017-01-01 · 4 obs

● 2015-05-15 01:40:44
● 2017-01-01 19:07:38
○ 2026-03-03 17:02:30
○ 2026-03-29 13:28:52

○MXmx1d10.thinline.cz2015-05-15 → 2017-01-01 · 4 obs

● 2015-05-15 01:40:44
● 2017-01-01 19:07:38
○ 2026-03-03 17:02:30
○ 2026-03-29 13:28:52

●A2001:67c:e94:1:1:5bef:cac8:12026-03-03 → 2026-03-29 · 3 obs

○ 2017-01-01 19:07:38
● 2026-03-03 17:02:30
● 2026-03-29 13:28:52

○A2a00:1ed0:2:1:1:5bef:cac8:12015-05-15 → 2017-01-01 · 4 obs

● 2015-05-15 01:40:44
● 2017-01-01 19:07:38
○ 2026-03-03 17:02:30
○ 2026-03-29 13:28:52

●A91.239.202.2002015-05-15 → 2026-03-29 · 2 obs

● 2015-05-15 01:40:44
● 2026-03-29 13:28:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, a.gtld-servers.net, l.gtld-servers.net, c.gtld-servers.net...	-
czech-jet.com	ns1.thinline.cz, ns2.thinline.cz, ns3.cesky-hosting.eu	-

✅ Authoritative Response

Server:82.100.6.2

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for czech-jet.com (unsigned zone)

⏱️ Timing

Total: 832ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.239.202.200`
AAAA	1	`2001:67c:e94:1:1:5bef:cac8:1`
NS	3	`ns1.thinline.cz, ns2.thinline.cz...`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	2	`google-site-verification=lzJVeh3T1pkuXdp, v=spf1 include:_spf.google.com ~all`
SOA	1	`ns1.thinline.cz hostmaster.czech-jet.com`

Analysis

IP Addresses

The entity czech-jet.com points to two IP numbers: 2001:67c:e94:1:1:5bef:cac8:1 and 91.239.202.200.

For instance, other host names zadar.sk, gifo.sk, www.gifo.sk, replikant723.thinline.cz and adrop.cz share IP numbers with czech-jet.com.

Name Servers

The delegation for czech-jet.com is handled by three name servers: ns1.thinline.cz, ns2.thinline.cz and ns3.cesky-hosting.eu.

czech-jet.com shares name servers with other domains at least partially, for example natech.cz, ag-archive.com, pfk.cz, tichakuchyne.cz and sdhzernov.cz.