c0.dk

📜 Historical scan 2026-06-16 18:43:08  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

c0.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 8 June 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 67.199.248.12 is hosted by Google LLC (AS396982) in United States. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. 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   43ms
NameserverIP addressesPTRASN / ISP
ns01.one.com — — —
ns02.one.com — — —

🌍 A Records#

2 records   46ms
IPTTLPTRASNISP / OrgCIDRCountryCity
67.199.248.12 — cname.bitly.com AS396982 Google LLC 67.199.248.0/24 🇺🇸 United States —
67.199.248.13 — cname.bitly.com AS396982 Google LLC 67.199.248.0/24 🇺🇸 United States —

📧 MX Records#

7 records   41ms
PriorityTTLMail ServerIP addressesPTRASN
10 — aspmx.l.google.com 64.233.161.26 lh-in-f26.1e100.net AS15169 Google LLC
20 — alt1.aspmx.l.google.com 172.253.158.26 so-in-f26.1e100.net AS15169 Google LLC
20 — alt2.aspmx.l.google.com 108.177.125.27 tp-in-f27.1e100.net AS15169 Google LLC
30 — aspmx2.googlemail.com 172.253.158.27 so-in-f27.1e100.net AS15169 Google LLC
30 — aspmx3.googlemail.com 108.177.125.26 tp-in-f26.1e100.net AS15169 Google LLC
30 — aspmx4.googlemail.com 172.253.152.26 yulpptr-in-f26.1e100.net AS15169 Google LLC
30 — aspmx5.googlemail.com 192.178.230.26 yunrtab-in-f26.1e100.net AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records   81ms
TXT Record
google-site-verification=okOVRIbuIMLca9_H6k_q0eBnKZhLgtywzapF-4Kh84Y
have-i-been-pwned-verification=0126d85d26723c551c87f79788fa0022

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 2026-10-15 17:45:19
www46.30.211.38 (AS51468) (address records, no CNAME)
www vs bare domainDifferent networks (all like this)
WildcardNo
Denial of existenceNSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

96ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

47ms
FieldValue
Serial2026032401
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-05 17:50:08
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2004-06-08
Expires2027-05-31 (226d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
43ms
A
46ms
MX
41ms
AAAA
35ms
TXT
81ms
CAA
35ms
HTTPS
38ms
TLSA
216ms
SOA
47ms
MTA-STS
39ms
DNSSEC
96ms
SRV
0ms
Total
820ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-30 22:06:07 831ms 2 NS 2 A 7 MX 🔒 Secure
2026-09-23 16:14:12 916ms 2 NS 2 A 7 MX 🔒 Secure
2026-08-26 18:02:57 1104ms 2 NS 2 A 7 MX 🔒 Secure
2026-06-24 15:43:09 885ms 2 NS 2 A 7 MX 🔒 Secure
2026-06-24 02:03:01 1186ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-19 05:16:37 936ms 2 NS 2 A 7 MX ⚠️ Bogus
2026-06-16 18:43:08 shown 820ms 2 NS 2 A 7 MX 🔒 Secure
2026-06-16 18:40:24 1072ms 2 NS 2 A 7 MX 🔒 Secure
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