cogco.dk

📜 Historical scan 2026-09-25 15:19:06 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cogco.dk is a .dk domain served by 2 nameservers (ali.ns.cloudflare.com, terin.ns.cloudflare.com). It was registered on 16 October 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.44.41 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by cogco-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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 41ms

Nameserver	IP addresses	PTR	ASN / ISP
ali.ns.cloudflare.com	108.162.192.59 172.64.32.59 173.245.58.59 2606:4700:50::adf5:3a3b 2803:f800:50::6ca2:c03b 2a06:98c1:50::ac40:203b	ali.ns.cloudflare.com ali.ns.cloudflare.com ali.ns.cloudflare.com ali.ns.cloudflare.com ali.ns.cloudflare.com ali.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
terin.ns.cloudflare.com	108.162.193.236 172.64.33.236 173.245.59.236 2606:4700:58::adf5:3bec 2803:f800:50::6ca2:c1ec 2a06:98c1:50::ac40:21ec	terin.ns.cloudflare.com terin.ns.cloudflare.com terin.ns.cloudflare.com terin.ns.cloudflare.com terin.ns.cloudflare.com terin.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 2035ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.44.41	298s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.194.205	298s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 57ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	cogco-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca04::c 2a01:111:f403:ca21::a 2a01:111:f403:ca48::8 52.101.68.29 52.101.73.153 52.101.91.153 52.101.91.21	mail-db7pr03cu00601.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-matpr04cu00101.inbound.protection.outlook.com mail-matpr05cu00105.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	172.67.194.205

🔷 AAAA Records (IPv6)#

2 records 38ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:c2cd	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::6815:2c29	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 38ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.44.41,172.67.194.205 ech=AEX+DQBBrwAgACDFbLVr+tQwjYs0uzOcFpF085wLLfwFLYrtsR82S1dZawAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:c2cd,2606:4700:3034::6815:2c29

📝 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-25 04:06:12

www	104.21.44.41 172.67.194.205 2606:4700:3033::ac43:c2cd 2606:4700:3034::6815:2c29 (AS13335) (address records, no CNAME)
www vs bare domain	Same network cogco.dk: 104.21.44.41 172.67.194.205 2606:4700:3033::ac43:c2cd 2606:4700:3034::6815:2c29 (AS13335) www.cogco.dk: 104.21.44.41 172.67.194.205 2606:4700:3033::ac43:c2cd 2606:4700:3034::6815:2c29 (AS13335)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

76ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2410981515
Primary NS (MNAME)	ali.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-06 10:25:47

Field	Value
Registrar	Realtime Register B.V.
Registered	2018-10-16
Expires	2027-07-31 (276d)

📋 WHOIS#

⏱️ Lookup Timing#

41ms

2035ms

57ms

AAAA

38ms

TXT

210ms

CAA

54ms

HTTPS

38ms

TLSA

742ms

SOA

0ms

MTA-STS

63ms

DNSSEC

76ms

SRV

63ms

Total

3248ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-25 04:06:12	550ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-01 04:18:42	1170ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-28 16:01:12	903ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-25 15:19:06 shown	3248ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-31 15:16:43	1302ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-25 15:07:07	11120ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-24 14:50:14	510ms	2 NS 1 A 0 MX	🔓 Insecure
2026-06-27 09:40:46	1147ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-24 02:19:12	913ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 21:50:15	1031ms	2 NS 2 A 1 MX	⚠️ Bogus
2026-06-16 21:40:42	1236ms	2 NS 2 A 1 MX	🔓 Insecure