c0b.dk

📜 Historical scan 2026-08-11 19:45:36 · ← 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 81ms

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 81ms

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 85ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:4cf8	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:ca81	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 84ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.76.248,172.67.202.129 ech=AEX+DQBBgwAgACAIYHcEwMbDkfqz0XWu2xxPB3mnG5yXe5eA2Q4O5zH8UAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:4cf8,2606:4700:3034::ac43:ca81

📝 TXT Records#

1 records 217ms

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#

190ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2411887053
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#

81ms

78ms

AAAA

85ms

TXT

217ms

CAA

76ms

HTTPS

84ms

TLSA

85ms

SOA

0ms

MTA-STS

53ms

DNSSEC

190ms

SRV

8066ms

Total

8777ms

🕐 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 shown	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	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