c0b.dk

📜 Historical scan 2026-07-14 07:18:58 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

c0b.dk is a .dk domain served by 2 nameservers (imani.ns.cloudflare.com, neil.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.76.248 is hosted by Cloudflare, Inc. (AS13335). The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 62ms

Nameserver	IP addresses	PTR	ASN / ISP
imani.ns.cloudflare.com	108.162.194.62 162.159.38.62 172.64.34.62 2606:4700:50::a29f:263e 2803:f800:50::6ca2:c23e 2a06:98c1:50::ac40:223e	imani.ns.cloudflare.com imani.ns.cloudflare.com imani.ns.cloudflare.com imani.ns.cloudflare.com imani.ns.cloudflare.com imani.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
neil.ns.cloudflare.com	108.162.193.211 172.64.33.211 173.245.59.211 2606:4700:58::adf5:3bd3 2803:f800:50::6ca2:c1d3 2a06:98c1:50::ac40:21d3	neil.ns.cloudflare.com neil.ns.cloudflare.com neil.ns.cloudflare.com neil.ns.cloudflare.com neil.ns.cloudflare.com neil.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.76.248	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.202.129	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 43ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:ca81	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::6815:4cf8	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 46ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.76.248,172.67.202.129 ech=AEX+DQBB1AAgACDa8kXjeEYal6daZuitoaaXXfDB1dRQq+8MDYZsr4i6OwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:ca81,2606:4700:3034::6815:4cf8

📝 TXT Records#

1 records 230ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (c0b.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-10 04:37:31

www	104.21.76.248 172.67.202.129 2606:4700:3033::6815:4cf8 2606:4700:3034::ac43:ca81 (AS13335) (address records, no CNAME)
www vs bare domain	Same network c0b.dk: 104.21.76.248 172.67.202.129 2606:4700:3033::6815:4cf8 2606:4700:3034::ac43:ca81 (AS13335) www.c0b.dk: 104.21.76.248 172.67.202.129 2606:4700:3033::6815:4cf8 2606:4700:3034::ac43:ca81 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

125ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

0ms

Field	Value
Serial	2409345394
Primary NS (MNAME)	imani.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

62ms

39ms

41ms

AAAA

43ms

TXT

230ms

CAA

41ms

HTTPS

46ms

TLSA

67ms

SOA

0ms

MTA-STS

109ms

DNSSEC

125ms

SRV

8072ms

Total

8702ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 04:37:31	1795ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-30 20:20:06	592ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-26 11:03:56	557ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-17 19:35:42	949ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-14 18:18:18	1274ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-11 05:50:09	1681ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-23 12:50:52	1201ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-11 19:45:36	8777ms	2 NS 2 A 0 MX	🔒 Secure
2026-07-30 00:28:10	858ms	2 NS 2 A 0 MX	🔒 Secure
2026-07-17 20:46:34	1855ms	2 NS 2 A 0 MX	🔒 Secure
2026-07-14 07:18:58 shown	8702ms	2 NS 2 A 0 MX	🔒 Secure
2026-07-06 09:09:06	868ms	2 NS 2 A 0 MX	🔒 Secure
2026-06-26 01:56:45	958ms	2 NS 2 A 0 MX	🔒 Secure
2026-06-25 19:38:19	942ms	2 NS 2 A 0 MX	🔒 Secure
2026-06-20 17:31:58	1025ms	2 NS 2 A 0 MX	🔒 Secure
2026-06-16 18:45:41	321ms	2 NS 2 A 0 MX	🔒 Secure
2026-06-16 18:40:50	507ms	2 NS 2 A 0 MX	🔒 Secure