cosopt.dk

📜 Historical scan 2026-08-21 13:30:26  ·  ← 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   4076ms

🌍 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#

5550ms
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 (72d)

🔗 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
4076ms
A
3895ms
MX
4117ms
AAAA
4191ms
TXT
20401ms
CAA
4167ms
HTTPS
4155ms
TLSA
4141ms
SOA
206ms
MTA-STS
4174ms
DNSSEC
5550ms
SRV
4291ms
Total
57154ms

🕐 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 shown 57154ms 7 NS 0 A 0 MX ❓ Unknown
2026-08-20 13:00:07 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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