c0b.dk

📜 Historical scan 2026-06-20 17:31:58 · ← 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 74ms

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 79ms

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 66ms

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 61ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.76.248,172.67.202.129 ech=AEX+DQBB/gAgACBIVulMEx7OVziL8f6Guob9W5ShrfTsiK0KKx+rZQwZKgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:ca81,2606:4700:3034::6815:4cf8

📝 TXT Records#

1 records 434ms

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#

241ms

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

🏷️ SOA#

89ms

Field	Value
Serial	2406761407
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#

74ms

79ms

89ms

AAAA

66ms

TXT

434ms

CAA

60ms

HTTPS

61ms

TLSA

145ms

SOA

89ms

MTA-STS

126ms

DNSSEC

241ms

SRV

119ms

Total

1025ms

🕐 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	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 shown	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