columbusaqua.dk

📜 Historical scan 2026-06-16 21:50:39 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

columbusaqua.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 31 January 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.61 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx1.onlinemail.io. The zone is DNSSEC-signed and validates, 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 77ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	—	—	—
ns2.curanet.dk	—	—	—

🌍 A Records#

1 records 76ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.41.61	—	web31.123hotel.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 76ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	mx1.onlinemail.io	185.21.42.12	mx1.onlinemail.io	AS48854 team.blue Denmark A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 167ms

TXT Record
v=spf1 +a +include:_spf.google.com +mx +ip4:195.178.14.49 include:spf.onlinemail.io ~all

✉️ SPF#

Policy	Record (columbusaqua.dk)
~all (soft fail)	v=spf1 +a +include:_spf.google.com +mx +ip4:195.178.14.49 include:spf.onlinemail.io ~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 2026-10-10 21:12:58

www CNAME	columbusaqua.dk (all on columbusaqua.dk) → 185.21.41.61 (AS48854)
www vs bare domain	Same network columbusaqua.dk: 185.21.41.61 (AS48854) www.columbusaqua.dk: 185.21.41.61 (AS48854)
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

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 6/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

185ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

81ms

Field	Value
Serial	2023102601
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 2026-10-08 02:19:32

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2000-01-31
Expires	2027-03-31 (155d)

📋 WHOIS#

⏱️ Lookup Timing#

77ms

76ms

AAAA

83ms

TXT

167ms

CAA

81ms

HTTPS

64ms

TLSA

61ms

SOA

81ms

MTA-STS

44ms

DNSSEC

185ms

SRV

0ms

Total

496ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-26 07:09:47	418ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-21 02:21:10	451ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 02:36:29	575ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 20:32:34	566ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-02 00:13:31	1504ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 21:50:39 shown	496ms	2 NS 1 A 1 MX	🔒 Secure