co-lumbus.dk

📜 Historical scan 2026-06-16 21:42:22 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

co-lumbus.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 3 February 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 23.236.62.147 is hosted by Google LLC (AS396982) in United States. Mail is handled by columbus-dk0e.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 228ms

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

🌍 A Records#

1 records 181ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
23.236.62.147	—	147.62.236.23.bc.googleusercontent.com	AS396982	Google LLC	23.236.48.0/20	🇺🇸 United States	Council Bluffs

📧 MX Records#

1 records 152ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	columbus-dk0e.mail.protection.outlook.com	52.101.73.12 52.101.73.19 52.101.73.26 52.101.73.8	mail-am4pr0401cu00104.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com mail-am0pr04cu00500.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 447ms

TXT Record
MS=ms96212448
v=spf1 include:spf.protection.outlook.com include:spf.rpost.net -all

✉️ SPF#

Policy	Record (co-lumbus.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.rpost.net -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 2026-10-07 22:23:26

www CNAME	www131.wixdns.net (all on wixdns.net) → 34.149.87.45 (AS396982)
www vs bare domain	Same network co-lumbus.dk: 23.236.62.147 (AS396982) www.co-lumbus.dk: 34.149.87.45 (AS396982)
Wildcard	Yes: any name under the zone resolves
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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

472ms

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

🏷️ SOA#

329ms

Field	Value
Serial	2022050501
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 2026-10-07 01:57:09

Field	Value
Registrar	Simply.com A/S
Registered	2009-02-03
Expires	2027-02-28 (128d)

📋 WHOIS#

⏱️ Lookup Timing#

228ms

181ms

152ms

AAAA

150ms

TXT

447ms

CAA

292ms

HTTPS

336ms

TLSA

323ms

SOA

329ms

MTA-STS

355ms

DNSSEC

472ms

SRV

0ms

Total

1927ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-08-27 13:55:21	9984ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-23 14:47:13	2254ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-23 13:00:40	1184ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 00:27:00	65535ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-16 21:42:22 shown	1927ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-16 21:31:30	611ms	2 NS 1 A 1 MX	🔓 Insecure