`dc-tracker.cz`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:c396^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:29e3^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.41.227^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.195.150^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`fay.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a73^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fay.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c073^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`fay.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2073^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`fay.ns.cloudflare.com`
		A	108.162.192.115^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fay.ns.cloudflare.com`
		A	172.64.32.115^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fay.ns.cloudflare.com`
		A	173.245.58.115^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fay.ns.cloudflare.com`
NS	`jacob.ns.cloudflare.com`
		A	2606:4700:58::a29f:2ca2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jacob.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3a2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jacob.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23a2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jacob.ns.cloudflare.com`
		A	108.162.195.162^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jacob.ns.cloudflare.com`
		A	162.159.44.162^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jacob.ns.cloudflare.com`
		A	172.64.35.162^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jacob.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.41.227, 172.67.195.150
		IPv6 hints	2606:4700:3033::ac43:c396, 2606:4700:3035::6815:29e3
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=16, name=cloudflare-ech.com
SOA	`fay.ns.cloudflare.com`dns@cloudflare.com serial=2406277016

`cz`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.ns.nic.cz` ⭐
	NS	`b.ns.nic.cz`
	NS	`c.ns.nic.cz`
	NS	`d.ns.nic.cz`
	SOA	`a.ns.nic.cz`hostmaster@nic.cz serial=1784436440

Same first word

dc-tracker.cz

DNS History

24 records (6 active, 18 former)

●NSfay.ns.cloudflare.com2026-07-11 → 2026-07-19 · 3 obs

○ 2019-12-26 10:35:48
● 2026-07-11 04:54:38
● 2026-07-19 05:19:54

●NSjacob.ns.cloudflare.com2026-07-11 → 2026-07-19 · 3 obs

○ 2019-12-26 10:35:48
● 2026-07-11 04:54:38
● 2026-07-19 05:19:54

○NSns.onebit.cz2015-05-28 → 2017-03-14 · 4 obs

● 2015-05-28 04:00:00
● 2017-03-14 19:20:14
○ 2019-12-26 10:35:48
○ 2026-07-19 05:19:54

○NSns.onebit.eu2015-05-28 → 2017-03-14 · 4 obs

● 2015-05-28 04:00:00
● 2017-03-14 19:20:14
○ 2019-12-26 10:35:48
○ 2026-07-19 05:19:54

○NSns.onebit.org2015-05-28 → 2017-03-14 · 4 obs

● 2015-05-28 04:00:00
● 2017-03-14 19:20:14
○ 2019-12-26 10:35:48
○ 2026-07-19 05:19:54

○NSns1.hukot.cz2019-12-26 → 2019-12-26 · 4 obs

○ 2017-03-14 19:20:14
● 2019-12-26 10:35:48
○ 2026-07-11 04:54:38
○ 2026-07-19 05:19:54

○NSns2.securitynet.cz2019-12-26 → 2019-12-26 · 4 obs

○ 2017-03-14 19:20:14
● 2019-12-26 10:35:48
○ 2026-07-11 04:54:38
○ 2026-07-19 05:19:54

○NSns3.hukot.cz2019-12-26 → 2019-12-26 · 4 obs

○ 2017-03-14 19:20:14
● 2019-12-26 10:35:48
○ 2026-07-11 04:54:38
○ 2026-07-19 05:19:54

○MXmx.securitynet.cz2019-12-26 → 2019-12-26 · 4 obs

○ 2017-03-14 19:20:14
● 2019-12-26 10:35:48
○ 2026-07-11 04:54:38
○ 2026-07-19 05:19:54

○MXmx2.securitynet.cz2019-12-26 → 2019-12-26 · 4 obs

○ 2017-03-14 19:20:14
● 2019-12-26 10:35:48
○ 2026-07-11 04:54:38
○ 2026-07-19 05:19:54

○MXmx9.onebit.cz2015-05-28 → 2017-03-14 · 4 obs

● 2015-05-28 04:00:00
● 2017-03-14 19:20:14
○ 2019-12-26 10:35:48
○ 2026-07-19 05:19:54

○MXmx9.onebit.eu2015-05-28 → 2017-03-14 · 4 obs

● 2015-05-28 04:00:00
● 2017-03-14 19:20:14
○ 2019-12-26 10:35:48
○ 2026-07-19 05:19:54

○MXmx9.onebit.org2015-05-28 → 2017-03-14 · 4 obs

● 2015-05-28 04:00:00
● 2017-03-14 19:20:14
○ 2019-12-26 10:35:48
○ 2026-07-19 05:19:54

●A104.21.41.2272026-07-11 → 2026-07-19 · 4 obs

○ 2019-12-26 10:35:48
● 2026-07-11 04:54:38
○ 2026-07-18 18:47:06
● 2026-07-19 05:19:54

●A172.67.195.1502026-07-11 → 2026-07-19 · 4 obs

○ 2019-12-26 10:35:48
● 2026-07-11 04:54:38
○ 2026-07-18 18:47:06
● 2026-07-19 05:19:54

○A178.238.37.1812015-05-28 → 2017-03-14 · 4 obs

● 2015-05-28 04:00:00
● 2017-03-14 19:20:14
○ 2019-12-26 10:35:48
○ 2026-07-19 05:19:54

○A188.114.96.02026-07-18 → 2026-07-18 · 3 obs

○ 2026-07-11 04:54:38
● 2026-07-18 18:47:06
○ 2026-07-19 05:19:54

○A188.114.97.02026-07-18 → 2026-07-18 · 3 obs

○ 2026-07-11 04:54:38
● 2026-07-18 18:47:06
○ 2026-07-19 05:19:54

●A2606:4700:3033::ac43:c3962026-07-11 → 2026-07-19 · 4 obs

○ 2019-12-26 10:35:48
● 2026-07-11 04:54:38
○ 2026-07-18 18:47:06
● 2026-07-19 05:19:54

●A2606:4700:3035::6815:29e32026-07-11 → 2026-07-19 · 4 obs

○ 2019-12-26 10:35:48
● 2026-07-11 04:54:38
○ 2026-07-18 18:47:06
● 2026-07-19 05:19:54

○A2a01:430:13::1812015-05-28 → 2017-03-14 · 4 obs

● 2015-05-28 04:00:00
● 2017-03-14 19:20:14
○ 2019-12-26 10:35:48
○ 2026-07-19 05:19:54

○A2a06:98c1:3120::2026-07-18 → 2026-07-18 · 3 obs

○ 2026-07-11 04:54:38
● 2026-07-18 18:47:06
○ 2026-07-19 05:19:54

○A2a06:98c1:3121::2026-07-18 → 2026-07-18 · 3 obs

○ 2026-07-11 04:54:38
● 2026-07-18 18:47:06
○ 2026-07-19 05:19:54

○A51.254.238.672019-12-26 → 2019-12-26 · 4 obs

○ 2017-03-14 19:20:14
● 2019-12-26 10:35:48
○ 2026-07-11 04:54:38
○ 2026-07-19 05:19:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz	-
dc-tracker.cz	fay.ns.cloudflare.com, jacob.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.162

NS records: fay.ns.cloudflare.com, jacob.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dc-tracker.cz (unsigned zone)

⏱️ Timing

Total: 808ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.195.150, 104.21.41.227`
AAAA	2	`2606:4700:3033::ac43:c396, 2606:4700:3035::6815:29e3`
NS	2	`fay.ns.cloudflare.com, jacob.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`fay.ns.cloudflare.com dns.cloudflare.com`

Analysis

IP Addresses

dc-tracker.cz resolves to four IP addresses: 104.21.41.227, 172.67.195.150, 2606:4700:3033::ac43:c396 and 2606:4700:3035::6815:29e3.

Additional host names — mergemedia.life, www.jefferson.es, wesiy.com and two others — share IP numbers with dc-tracker.cz.

Name Servers

dc-tracker.cz is served by two delegated name servers, fay.ns.cloudflare.com and jacob.ns.cloudflare.com.

dc-tracker.cz shares its name server setup with other domains, including g2ggrand.company, lavagame.me, lava789.biz and two others.

dc-tracker.cz partially shares its NS delegation with several other domains, including bgrich.vip, gantry.org, mikedombrowski.com and two others.

These name servers are regularly seen alongside neil.ns.cloudflare.com and jeff.ns.cloudflare.com as name servers.

Host names with 6 IP numbers:

fay.ns.cloudflare.com carries IP addresses 108.162.192.115, 172.64.32.115 and 173.245.58.115, with 3 other addresses beyond those.

jacob.ns.cloudflare.com carries IP addresses 108.162.195.162, 162.159.44.162 and 172.64.35.162, with 3 other addresses beyond those.

dc-tracker.cz - robtex.com

dc-tracker.cz

cz

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`dc-tracker.cz`

`cz`