cosopt.dk

📜 Historical scan 2026-08-20 13:00:07  ·  ← Latest scan
🧟 Lame delegation ⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cosopt.dk is a registered .dk domain whose nameservers (att.isc-sns.com, att.isc-sns.info, att.isc-sns.net and 4 more) do not answer for it, so it is currently a lame delegation and does not resolve. It was registered on 21 October 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. 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#

7 records   1476ms

🌍 A Records#

🌍
No A records found

📧 MX Records#

📧
No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝
No TXT records found

✉️ 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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

2513ms
CheckResult
Validation Status❓ Unknown (the delegated nameservers don't answer)
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsresolution failed: failure

🏷️ SOA#

✗ No SOA record found

📋 Registration#

WHOIS fetched 2026-10-13 03:19:07
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2002-10-21
Expires2026-12-31 (73d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

DomainRegistrar
timacar.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
1476ms
A
1380ms
MX
719ms
AAAA
1286ms
TXT
8014ms
CAA
742ms
HTTPS
982ms
TLSA
1509ms
SOA
38ms
MTA-STS
8925ms
DNSSEC
2513ms
SRV
16052ms
Total
33281ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-30 13:19:22 39853ms 7 NS 0 A 0 MX ❓ Unknown
2026-09-06 17:33:48 43561ms 7 NS 0 A 0 MX ❓ Unknown
2026-08-26 13:09:29 40654ms 7 NS 0 A 0 MX ❓ Unknown
2026-08-23 16:45:21 31707ms 7 NS 0 A 0 MX ❓ Unknown
2026-08-22 14:21:46 34705ms 7 NS 0 A 0 MX ❓ Unknown
2026-08-21 13:30:26 57154ms 7 NS 0 A 0 MX ❓ Unknown
2026-08-20 13:00:07 shown 33281ms 7 NS 0 A 0 MX ❓ Unknown
2026-08-19 05:12:12 50340ms 7 NS 0 A 0 MX ❓ Unknown
2026-08-18 04:39:18 38918ms 7 NS 0 A 0 MX ❓ Unknown
2026-08-17 02:41:36 38461ms 7 NS 0 A 0 MX ❓ Unknown
2026-08-15 19:08:18 36762ms 7 NS 0 A 0 MX ❓ Unknown
2026-08-14 10:55:46 42349ms 7 NS 0 A 0 MX ❓ Unknown
2026-08-11 21:21:08 41935ms 7 NS 0 A 0 MX ❓ Unknown
2026-08-09 17:48:04 37020ms 7 NS 0 A 0 MX ❓ Unknown
2026-08-08 16:29:01 36767ms 7 NS 0 A 0 MX ❓ Unknown
2026-08-07 14:51:31 36519ms 7 NS 0 A 0 MX ❓ Unknown
2026-07-29 07:53:29 40853ms 7 NS 0 A 0 MX ❓ Unknown
2026-07-28 00:37:20 42153ms 7 NS 0 A 0 MX ❓ Unknown
2026-07-27 00:11:42 41844ms 7 NS 0 A 0 MX ❓ Unknown
2026-07-25 23:38:10 39267ms 7 NS 0 A 0 MX ❓ Unknown
2026-07-24 23:13:36 38103ms 7 NS 0 A 0 MX ❓ Unknown
2026-07-23 21:43:29 39449ms 7 NS 0 A 0 MX ❓ Unknown
2026-07-22 20:47:14 30135ms 7 NS 0 A 0 MX ❓ Unknown
2026-07-21 20:02:29 48531ms 7 NS 0 A 0 MX ❓ Unknown
2026-07-20 12:52:17 35043ms 7 NS 0 A 0 MX ❓ Unknown
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