columna.dk

📜 Historical scan 2026-06-16 21:51:05 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

columna.dk is a .dk domain served by 2 nameservers (rajeev.ns.cloudflare.com, selah.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.4.22 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, publishes a 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 54ms

Nameserver	IP addresses	PTR	ASN / ISP
rajeev.ns.cloudflare.com	—	—	—
selah.ns.cloudflare.com	—	—	—

🌍 A Records#

2 records 53ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.4.22	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.131.143	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 50ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:838f	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:416	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 48ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.4.22,172.67.131.143 ech=AEX+DQBBlwAgACARtnhQ7LTw1FhCMpClda8WTnV4Yh2JhRcKaIGJtucSdAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:838f,2606:4700:3037::6815:416

📝 TXT Records#

2 records 193ms

TXT Record
_67iyaidq8a8wll0pye9do1w8wwmvq9o
v=spf1 -all

✉️ SPF#

Policy	Record (columna.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.columna.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:DMARCAdmin@systematic.com

📬 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 12:14:48

www	104.21.4.22 172.67.131.143 2606:4700:3031::6815:416 2606:4700:3032::ac43:838f (AS13335) (address records, no CNAME)
www vs bare domain	Same network columna.dk: 104.21.4.22 172.67.131.143 2606:4700:3031::6815:416 2606:4700:3032::ac43:838f (AS13335) www.columna.dk: 104.21.4.22 172.67.131.143 2606:4700:3031::6815:416 2606:4700:3032::ac43:838f (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

140ms

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

🏷️ SOA#

44ms

Field	Value
Serial	2405036047
Primary NS (MNAME)	rajeev.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

54ms

53ms

45ms

AAAA

50ms

TXT

193ms

CAA

47ms

HTTPS

48ms

TLSA

57ms

SOA

44ms

MTA-STS

65ms

DNSSEC

140ms

SRV

0ms

Total

536ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 04:03:11	496ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-07 00:03:00	581ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-31 15:33:02	1229ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-27 17:06:36	632ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-24 19:13:54	805ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-22 13:57:53	884ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-12 15:20:08	889ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-10 15:07:59	1072ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-07 15:15:11	2830ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-30 09:56:05	803ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-23 15:13:06	1039ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-19 02:54:33	997ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-16 21:51:05 shown	536ms	2 NS 2 A 0 MX	🔓 Insecure