`koptexnova.cz`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:b706^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:3055^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.48.85^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.183.6^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`brian.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c24^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brian.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c324^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`brian.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2324^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`brian.ns.cloudflare.com`
		A	108.162.195.36^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brian.ns.cloudflare.com`
		A	162.159.44.36^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brian.ns.cloudflare.com`
		A	172.64.35.36^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brian.ns.cloudflare.com`
NS	`raina.ns.cloudflare.com`
		A	2606:4700:50::a29f:26f1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`raina.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2f1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`raina.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22f1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`raina.ns.cloudflare.com`
		A	108.162.194.241^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`raina.ns.cloudflare.com`
		A	162.159.38.241^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`raina.ns.cloudflare.com`
		A	172.64.34.241^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`raina.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.48.85, 172.67.183.6
		IPv6 hints	2606:4700:3032::ac43:b706, 2606:4700:3035::6815:3055
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=18, name=cloudflare-ech.com
SOA	`brian.ns.cloudflare.com`dns@cloudflare.com serial=2399402962

`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=1778685433

rank #762762 globally
rank #3791 in the tld

Same first word

koptexnova.cz

DNS History

17 records (6 active, 11 former)

●NSbrian.ns.cloudflare.com2026-05-04 → 2026-05-13 · 3 obs

○ 2018-09-21 03:04:56
● 2026-05-04 13:52:00
● 2026-05-13 15:47:32

○NSns.endora.cz2018-09-21 → 2018-09-21 · 4 obs

○ 2017-01-05 14:30:56
● 2018-09-21 03:04:56
○ 2026-05-04 13:52:00
○ 2026-05-13 15:47:32

○NSns.endoraland.com2018-09-21 → 2018-09-21 · 4 obs

○ 2017-01-05 14:30:56
● 2018-09-21 03:04:56
○ 2026-05-04 13:52:00
○ 2026-05-13 15:47:32

○NSns1.regzone.cz2015-07-20 → 2017-01-05 · 4 obs

● 2015-07-20 00:23:56
● 2017-01-05 14:30:56
○ 2018-09-21 03:04:56
○ 2026-05-13 15:47:32

○NSns1.regzone.de2015-07-20 → 2017-01-05 · 4 obs

● 2015-07-20 00:23:56
● 2017-01-05 14:30:56
○ 2018-09-21 03:04:56
○ 2026-05-13 15:47:32

○NSns1.regzone.info2015-07-20 → 2017-01-05 · 4 obs

● 2015-07-20 00:23:56
● 2017-01-05 14:30:56
○ 2018-09-21 03:04:56
○ 2026-05-13 15:47:32

●NSraina.ns.cloudflare.com2026-05-04 → 2026-05-13 · 3 obs

○ 2018-09-21 03:04:56
● 2026-05-04 13:52:00
● 2026-05-13 15:47:32

○MXmail.endora.cz2018-09-21 → 2018-09-21 · 4 obs

○ 2017-01-05 14:30:56
● 2018-09-21 03:04:56
○ 2026-05-04 13:52:00
○ 2026-05-13 15:47:32

○MXmail.globalnet.cz2015-07-20 → 2017-01-05 · 4 obs

● 2015-07-20 00:23:56
● 2017-01-05 14:30:56
○ 2018-09-21 03:04:56
○ 2026-05-13 15:47:32

○MXmx.endoraland.com2018-09-21 → 2018-09-21 · 4 obs

○ 2017-01-05 14:30:56
● 2018-09-21 03:04:56
○ 2026-05-04 13:52:00
○ 2026-05-13 15:47:32

●A104.21.48.852026-05-04 → 2026-05-13 · 3 obs

○ 2018-09-21 03:04:56
● 2026-05-04 13:52:00
● 2026-05-13 15:47:32

●A172.67.183.62026-05-04 → 2026-05-13 · 3 obs

○ 2018-09-21 03:04:56
● 2026-05-04 13:52:00
● 2026-05-13 15:47:32

○A217.11.236.372015-07-20 → 2017-01-05 · 4 obs

● 2015-07-20 00:23:56
● 2017-01-05 14:30:56
○ 2018-09-21 03:04:56
○ 2026-05-13 15:47:32

●A2606:4700:3032::ac43:b7062026-05-04 → 2026-05-13 · 3 obs

○ 2018-09-21 03:04:56
● 2026-05-04 13:52:00
● 2026-05-13 15:47:32

●A2606:4700:3035::6815:30552026-05-04 → 2026-05-13 · 3 obs

○ 2018-09-21 03:04:56
● 2026-05-04 13:52:00
● 2026-05-13 15:47:32

○A2a01:28:ca:63:121:8::2018-09-21 → 2018-09-21 · 4 obs

○ 2017-01-05 14:30:56
● 2018-09-21 03:04:56
○ 2026-05-04 13:52:00
○ 2026-05-13 15:47:32

○A88.86.121.82018-09-21 → 2018-09-21 · 4 obs

○ 2017-01-05 14:30:56
● 2018-09-21 03:04:56
○ 2026-05-04 13:52:00
○ 2026-05-13 15:47:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	-
koptexnova.cz	brian.ns.cloudflare.com, raina.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.38.241

NS records: brian.ns.cloudflare.com, raina.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for koptexnova.cz (unsigned zone)

⏱️ Timing

Total: 1517ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.48.85, 172.67.183.6`
AAAA	2	`2606:4700:3035::6815:3055, 2606:4700:3032::ac43:b706`
NS	2	`brian.ns.cloudflare.com, raina.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`brian.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

koptexnova.cz points to four IP numbers: 2606:4700:3032::ac43:b706, 2606:4700:3035::6815:3055, 104.21.48.85 and 172.67.183.6.

Other host names, for instance vp-adguard.pro, ateret-shlomo.org, levian.org, 8da18.com and spunsugar.com share IP numbers with koptexnova.cz.

Name Servers

Delegation for koptexnova.cz rests with two name servers, brian.ns.cloudflare.com and raina.ns.cloudflare.com.

koptexnova.cz shares the same name server setup as other domains, including devillaugh.com.ar, casaindonesia.com, kairongled.com, diobuy.site and beapay.com.

koptexnova.cz at least partially shares name servers with other domains, for instance brandplusasia.com, bcpchurch.com, jxjinshan.com, amb888vip-2.com and capfedonline.com.

These name servers are commonly used alongside fred.ns.cloudflare.com, elma.ns.cloudflare.com, glen.ns.cloudflare.com and imani.ns.cloudflare.com.

Host names with six IP numbers: brian.ns.cloudflare.com points to: 2606:4700:58::a29f:2c24, 2803:f800:50::6ca2:c324, 2a06:98c1:50::ac40:2324, 108.162.195.36, 162.159.44.36 and 172.64.35.36. raina.ns.cloudflare.com points to: 2606:4700:50::a29f:26f1, 2803:f800:50::6ca2:c2f1, 2a06:98c1:50::ac40:22f1, 108.162.194.241, 162.159.38.241 and 172.64.34.241.

koptexnova.cz - robtex.com

koptexnova.cz

cz

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`koptexnova.cz`

`cz`