`mujlinux.cz`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:b3c^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3031::ac43:bf5a^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.11.60^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.191.90^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`marty.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bcc^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marty.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1cc^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`marty.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21cc^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`marty.ns.cloudflare.com`
		A	108.162.193.204^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marty.ns.cloudflare.com`
		A	172.64.33.204^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marty.ns.cloudflare.com`
		A	173.245.59.204^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marty.ns.cloudflare.com`
NS	`rafe.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ad8^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rafe.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0d8^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rafe.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20d8^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rafe.ns.cloudflare.com`
		A	108.162.192.216^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rafe.ns.cloudflare.com`
		A	172.64.32.216^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rafe.ns.cloudflare.com`
		A	173.245.58.216^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rafe.ns.cloudflare.com`
MX	`mail.hukot.net` ⭐
		A	46.36.35.152^{🇨🇿 SECURITYNET-AS46.36.35.0/24 GTT-NET prefix}
			PTR	`mail.hukot.net`
MX	`mx2.securitynet.cz`⁽¹⁰⁰⁾
		A	46.36.35.65^{🇨🇿 SECURITYNET-AS46.36.35.0/24 GTT-NET prefix}
			PTR	`mx2.securitynet.cz`
TXT	`v=spf1 a mx include:spf.hukot.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.11.60, 172.67.191.90
		IPv6	2606:4700:3031::6815:b3c, 2606:4700:3031::ac43:bf5a
SOA	`marty.ns.cloudflare.com`dns@cloudflare.com serial=2400071699

`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=1774631837

🔒 HSTS Preload (+subdomains)

Same first word

mujlinux.cz

DNS History

8 records (8 active, 0 former)

●NSmarty.ns.cloudflare.com2026-03-10 → 2026-03-27 · 2 obs

● 2026-03-10 22:12:58
● 2026-03-27 17:43:54

●NSrafe.ns.cloudflare.com2026-03-10 → 2026-03-27 · 2 obs

● 2026-03-10 22:12:58
● 2026-03-27 17:43:54

●MXmail.hukot.net2026-03-10 → 2026-03-27 · 2 obs

● 2026-03-10 22:12:58
● 2026-03-27 17:43:54

●MXmx2.securitynet.cz2026-03-10 → 2026-03-27 · 2 obs

● 2026-03-10 22:12:58
● 2026-03-27 17:43:54

●A104.21.11.602026-03-10 → 2026-03-27 · 2 obs

● 2026-03-10 22:12:58
● 2026-03-27 17:43:54

●A172.67.191.902026-03-10 → 2026-03-27 · 2 obs

● 2026-03-10 22:12:58
● 2026-03-27 17:43:54

●A2606:4700:3031::6815:b3c2026-03-10 → 2026-03-27 · 2 obs

● 2026-03-10 22:12:58
● 2026-03-27 17:43:54

●A2606:4700:3031::ac43:bf5a2026-03-10 → 2026-03-27 · 2 obs

● 2026-03-10 22:12:58
● 2026-03-27 17:43:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	d.ns.nic.cz, c.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz	-
mujlinux.cz	rafe.ns.cloudflare.com, marty.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.204

NS records: rafe.ns.cloudflare.com, marty.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mujlinux.cz (unsigned zone)

⏱️ Timing

Total: 616ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.191.90, 104.21.11.60`
AAAA	2	`2606:4700:3031::ac43:bf5a, 2606:4700:3031::6815:b3c`
NS	2	`marty.ns.cloudflare.com, rafe.ns.cloudflare.com`
MX	2	`mail.hukot.net (pri: 10), mx2.securitynet.cz (pri: 100)`
TXT	1	`v=spf1 a mx include:spf.hukot.net ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`marty.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

mujlinux.cz resolves to four IPs: 2606:4700:3031::6815:b3c, 2606:4700:3031::ac43:bf5a, 104.21.11.60 and 172.67.191.90.

Other host names such as sonmarchive.es, wikidocumentaries-demo-wmcloud-org.zcadk.com, dfwtreesurgeons.com, brtn.be and glaciercraft.xyz share IP numbers with mujlinux.cz.

Name Servers

mujlinux.cz is delegated to two name servers: marty.ns.cloudflare.com and rafe.ns.cloudflare.com.

mujlinux.cz uses the same name server setup as other domains, including taoismus.eu, smartdesc.co.uk, ginko.tv, snore.net and smartdesc.net.

At least part of the name servers for mujlinux.cz are shared with other domains, for instance zk.work, manoun.com, 3848js.com, contrata.vc and brdwl.com.

These name servers are often used together with melissa.ns.cloudflare.com, jocelyn.ns.cloudflare.com and heather.ns.cloudflare.com.

Host names with six IP numbers:

marty.ns.cloudflare.com points to: 2606:4700:58::adf5:3bcc, 2803:f800:50::6ca2:c1cc, 2a06:98c1:50::ac40:21cc, 108.162.193.204, 172.64.33.204 and 173.245.59.204.

rafe.ns.cloudflare.com points to: 2606:4700:50::adf5:3ad8, 2803:f800:50::6ca2:c0d8, 2a06:98c1:50::ac40:20d8, 108.162.192.216, 172.64.32.216 and 173.245.58.216.

Mail Servers

mujlinux.cz is handled by two mail servers: mx2.securitynet.cz and mail.hukot.net.

mujlinux.cz uses the same mail server setup as other domains, for instance ikuch.cz, cajzivota.cz, appletips.sk, isystems.cz and ipack.cz.

mujlinux.cz shares at least some mail servers with other domains, for example alena.cz, rapee.cz, kbassembly.com, netvoip.cz and reklama.in.

these mail servers are frequently used alongside the mail servers mx.securitynet.cz.

Hostnames with a single IP

mx2.securitynet.cz resolves to: 46.36.35.65.

mail.hukot.net resolves to: 46.36.35.152.

mujlinux.cz - robtex.com

mujlinux.cz

cz

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`mujlinux.cz`

`cz`