columna.dk DNS records

🖥️ Nameservers2 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 Records2 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 Records1 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 Records2 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

🔏 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)

🔐 DNSSEC229ms

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

🏷️ SOA0ms

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 — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

70ms

A

114ms

MX

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