couba.dk

📜 Historical scan 2026-06-21 16:09:26 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

couba.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 27 March 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 95.154.26.30 is hosted by Sinal A/S (AS39642) in Denmark. Mail is handled by couba-dk.mail.protection.outlook.com. The zone is DNSSEC-signed but currently fails validation, 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 54ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 80ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
95.154.26.30	3600s	95-154-26-30.norlyscustomer.net	AS39642	Sinal A/S	95.154.0.0/18	🇩🇰 Denmark	Årre

📧 MX Records#

1 records 27ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	couba-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::4 2a01:111:f403:ca04::9 2a01:111:f403:ca09::3 52.101.68.21 52.101.68.39 52.101.73.1 52.101.73.22	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am7pr05cu00106.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	autodiscover.outlook.com → 40.104.116.40

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 276ms

TXT Record
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (couba.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 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 2026-10-08 02:03:06

www CNAME	couba.dk (all on couba.dk) → 95.154.26.30 (AS39642)
www vs bare domain	Same network couba.dk: 95.154.26.30 (AS39642) www.couba.dk: 95.154.26.30 (AS39642)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.couba.dk	8stfYY-jmwl7tYDuU_-6FktEv6Zp6zKHLSVbELCuszs

🔗 TLSA / DANE#

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

🔐 DNSSEC#

89ms

Check	Result
Validation Status	⚠️ Bogus
AD Flag (resolver validates)	✗ Not set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	broken trust chain resolving 'couba.dk/A/IN': 127.0.0.1#53

🏷️ SOA#

55ms

Field	Value
Serial	2021111701
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-20 10:32:08

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-03-27
Expires	2027-03-31 (161d)

🔗 Same registrant#

10 domains

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).

Domain	Registrar
hansen66.dk	Punktum dk A/S (direct)
hennekro.dk	Punktum dk A/S (direct)
hotel-homie.dk	CURANET A/S
je-mathiasen.dk	Punktum dk A/S (direct)
martinmadsen.dk	Punktum dk A/S (direct)
mmsky.dk	Punktum dk A/S (direct)
mspsmtp.dk	Punktum dk A/S (direct)
sarahgissel.dk	Punktum dk A/S (direct)
staudeholder.dk	Punktum dk A/S (direct)
svampeuge.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

54ms

80ms

27ms

AAAA

94ms

TXT

276ms

CAA

82ms

HTTPS

43ms

TLSA

342ms

SOA

55ms

MTA-STS

100ms

DNSSEC

89ms

SRV

117ms

Total

869ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-23 19:19:57	659ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-27 17:56:35	1963ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 10:24:08	1360ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 16:09:26 shown	869ms	2 NS 1 A 1 MX	⚠️ Bogus
2026-06-16 22:35:26	2565ms	2 NS 1 A 1 MX	🔒 Secure