columna.dk

📜 Historical scan 2026-08-31 15:33:02 · ← 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 70ms

Nameserver	IP addresses	PTR	ASN / ISP
rajeev.ns.cloudflare.com	108.162.193.224 172.64.33.224 173.245.59.224 2606:4700:58::adf5:3be0 2803:f800:50::6ca2:c1e0 2a06:98c1:50::ac40:21e0	rajeev.ns.cloudflare.com rajeev.ns.cloudflare.com rajeev.ns.cloudflare.com rajeev.ns.cloudflare.com rajeev.ns.cloudflare.com rajeev.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
selah.ns.cloudflare.com	108.162.194.21 162.159.38.21 172.64.34.21 2606:4700:50::a29f:2615 2803:f800:50::6ca2:c215 2a06:98c1:50::ac40:2215	selah.ns.cloudflare.com selah.ns.cloudflare.com selah.ns.cloudflare.com selah.ns.cloudflare.com selah.ns.cloudflare.com selah.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 114ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.4.22	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.131.143	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 130ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:416	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3032::ac43:838f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 141ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.4.22,172.67.131.143 ech=AEX+DQBBbQAgACB7/SBH+xqW4r7SI60BZcc14GXZERm9bXXLDs1CZjL2RwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:416,2606:4700:3032::ac43:838f

📝 TXT Records#

2 records 346ms

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

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.columna.dk	hFtsVQgphN2MQM-T-nPPmjmZDO44rocEfT-n_2vdohY
TXT	_acme-challenge.columna.dk	oPvea-rHYSayymXH3wM3u3CbHU_g2kJtgGzzvwvj8jc

🔗 TLSA / DANE#

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

🔐 DNSSEC#

229ms

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	2413559933
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#

70ms

114ms

95ms

AAAA

130ms

TXT

346ms

CAA

112ms

HTTPS

141ms

TLSA

128ms

SOA

0ms

MTA-STS

160ms

DNSSEC

229ms

SRV

178ms

Total

1229ms

🕐 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 shown	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	536ms	2 NS 2 A 0 MX	🔓 Insecure