cos.dk

📜 Historical scan 2026-07-13 03:38:03 · ← Latest scan

🧟 Lame delegation ⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cos.dk is a registered .dk domain whose nameservers (ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com and 1 more) do not answer for it, so it is currently a lame delegation and does not resolve. It 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#

4 records 123ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.a2hosting.com	13.248.158.180	a79764cc55c0ac9c0.awsglobalaccelerator.com	AS16509 Amazon.com, Inc.
ns2.a2hosting.com	75.2.118.134	abc65dd9a44b5332f.awsglobalaccelerator.com	AS16509 Amazon.com, Inc.
ns3.a2hosting.com	76.223.26.245	a79764cc55c0ac9c0.awsglobalaccelerator.com	AS16509 Amazon.com, Inc.
ns4.a2hosting.com	99.83.147.209	abc65dd9a44b5332f.awsglobalaccelerator.com	AS16509 Amazon.com, Inc.

🌍 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#

183ms

Check	Result
Validation Status	❓ Unknown (the delegated nameservers don't answer)
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: failure

🏷️ SOA#

✗ No SOA record found

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

123ms

122ms

142ms

AAAA

143ms

TXT

1700ms

CAA

142ms

HTTPS

132ms

TLSA

145ms

SOA

37ms

MTA-STS

167ms

DNSSEC

183ms

SRV

996ms

Total

2758ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-08-28 07:55:08	5796ms	4 NS 0 A 0 MX	❓ Unknown
2026-08-23 05:44:09	8819ms	4 NS 0 A 0 MX	❓ Unknown
2026-08-22 05:36:11	5260ms	4 NS 0 A 0 MX	❓ Unknown
2026-08-21 05:13:11	3085ms	4 NS 0 A 0 MX	❓ Unknown
2026-08-20 04:45:19	11641ms	4 NS 0 A 0 MX	❓ Unknown
2026-08-19 04:03:42	14702ms	4 NS 0 A 0 MX	❓ Unknown
2026-08-18 03:03:04	6829ms	4 NS 0 A 0 MX	❓ Unknown
2026-08-17 00:53:11	12693ms	4 NS 0 A 0 MX	❓ Unknown
2026-08-15 13:09:12	12784ms	4 NS 0 A 0 MX	❓ Unknown
2026-08-14 02:44:51	7532ms	4 NS 0 A 0 MX	❓ Unknown
2026-08-12 11:22:49	5699ms	4 NS 0 A 0 MX	❓ Unknown
2026-08-11 10:20:26	5892ms	4 NS 0 A 0 MX	❓ Unknown
2026-08-10 09:47:50	2182ms	4 NS 0 A 0 MX	❓ Unknown
2026-08-08 04:11:52	12669ms	4 NS 0 A 0 MX	❓ Unknown
2026-07-28 21:59:22	12683ms	4 NS 0 A 0 MX	❓ Unknown
2026-07-27 20:33:08	12833ms	4 NS 0 A 0 MX	❓ Unknown
2026-07-26 20:18:04	7181ms	4 NS 0 A 0 MX	❓ Unknown
2026-07-25 20:07:33	2182ms	4 NS 0 A 0 MX	❓ Unknown
2026-07-24 19:46:00	2542ms	4 NS 0 A 0 MX	❓ Unknown
2026-07-23 19:13:42	2633ms	4 NS 0 A 0 MX	❓ Unknown
2026-07-22 15:55:57	2629ms	4 NS 0 A 0 MX	❓ Unknown
2026-07-21 15:35:58	2383ms	4 NS 0 A 0 MX	❓ Unknown
2026-07-19 06:32:59	22827ms	4 NS 0 A 0 MX	❓ Unknown
2026-07-18 05:01:57	2297ms	4 NS 0 A 0 MX	❓ Unknown
2026-07-16 18:40:49	5938ms	4 NS 0 A 0 MX	❓ Unknown