c-o-b.dk

📜 Historical scan 2026-06-25 04:32:01 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

c-o-b.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 5 December 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.88.12.43 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mx1.spamfilter.cc. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. 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 48ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 44ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.88.12.43	43200s	—	AS3292	TDC Holding A/S	193.88.0.0/15	🇩🇰 Denmark	—

📧 MX Records#

1 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	mx1.spamfilter.cc	2001:19f0:5001:1b34:5400:3ff:fe0e:a8b5 95.179.139.219 95.179.218.56	— 95.179.139.219.vultrusercontent.com puertomarket.tempurl.host	AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	193.88.12.43
🔶 Autoconfig	193.88.12.43

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 162ms

TXT Record
v=spf1 mx:c-o-b.dk -all

✉️ SPF#

Policy	Record (c-o-b.dk)
-all (hard fail)	v=spf1 mx:c-o-b.dk -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 2026-10-14 09:08:38

www	193.88.12.43 (AS3292) (address records, no CNAME)
www vs bare domain	Same network c-o-b.dk: 193.88.12.43 (AS3292) www.c-o-b.dk: 193.88.12.43 (AS3292)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

112ms

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

🏷️ SOA#

2033ms

Field	Value
Serial	2026040401
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-11 01:45:38

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2002-12-05
Expires	2026-12-31 (72d)

📋 WHOIS#

⏱️ Lookup Timing#

48ms

44ms

42ms

AAAA

40ms

TXT

162ms

CAA

45ms

HTTPS

36ms

TLSA

59ms

SOA

2033ms

MTA-STS

44ms

DNSSEC

112ms

SRV

57ms

Total

6536ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 09:08:38	1158ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 13:26:29	4321ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 13:15:47	4679ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-14 08:41:52	4719ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 17:05:50	2918ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 04:32:01 shown	6536ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 14:03:01	676ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 08:49:35	934ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 17:09:54	1331ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 18:40:46	593ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 18:40:45	522ms	2 NS 1 A 1 MX	🔒 Secure