web.c-system.dk - robtex.com

web.c-system.dk

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:cc40🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::6815:555e🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.85.94Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.204.64🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.85.94, 172.67.204.64
IPv6 hints2606:4700:3032::ac43:cc40, 2606:4700:3033::6815:555e
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=166, name=cloudflare-ech.com

c-system.dk

DNSSEC🔒 Signed (DS record present)
A2606:4700:3032::ac43:cc40🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::6815:555e🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.85.94Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.204.64🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSautumn.ns.cloudflare.com ⭐
NSgabriel.ns.cloudflare.com
MXcsystem-dk0c.mail.protection.outlook.com ⭐
TXTv=spf1 a mx a:web01.c-system.dk a:windu.c-system.dk a:yoda.c-system.dk a:bb-8...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.85.94, 172.67.204.64
IPv6 hints2606:4700:3032::ac43:cc40, 2606:4700:3033::6815:555e
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=166, name=cloudflare-ech.com
SOAautumn.ns.cloudflare.comdns@cloudflare.com serial=2402142159

PTR for

86.60.12.49.in-addr.arpa

Same first word

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DNS History

5 records (4 active, 1 former)

A104.21.85.94172.67.204.642606:4700:3032::ac43:cc402606:4700:3033::6815:555e172.64.80.1
●A104.21.85.942026-02-16 → 2026-04-26 · 5 obs
● 2026-02-16 15:42:06
● 2026-03-16 00:59:24
○ 2026-03-19 10:07:34
● 2026-03-19 13:43:00
● 2026-04-26 00:22:20
○A172.64.80.12026-03-19 → 2026-03-19 · 4 obs
○ 2026-03-16 00:59:24
● 2026-03-19 10:07:34
○ 2026-03-19 13:43:00
○ 2026-04-26 00:22:20
●A172.67.204.642026-02-16 → 2026-04-26 · 5 obs
● 2026-02-16 15:42:06
● 2026-03-16 00:59:24
○ 2026-03-19 10:07:34
● 2026-03-19 13:43:00
● 2026-04-26 00:22:20
●A2606:4700:3032::ac43:cc402026-02-16 → 2026-04-26 · 2 obs
● 2026-02-16 15:42:06
● 2026-04-26 00:22:20
●A2606:4700:3033::6815:555e2026-02-16 → 2026-04-26 · 2 obs
● 2026-02-16 15:42:06
● 2026-04-26 00:22:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dkb.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk...12 records
c-system.dkautumn.ns.cloudflare.com, gabriel.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.194.148

NS records: autumn.ns.cloudflare.com, gabriel.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 527ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.204.64, 104.21.85.94
AAAA22606:4700:3032::ac43:cc40, 2606:4700:3033::6815:555e
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (b.nic.dk, c.nic.dk, h.nic.dk...)

Analysis

IP Addresses

web.c-system.dk points to four IP numbers: 2606:4700:3032::ac43:cc40, 2606:4700:3033::6815:555e, 104.21.85.94 and 172.67.204.64.

Other host names, for instance key-stone.uk.com, thejano.com, bibbleworks.click, motionultrainvest.digital and xcbbly.com share IP numbers with web.c-system.dk.