columnacura.dk

📜 Historical scan 2026-10-13 19:19:09 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

columnacura.dk is a .dk domain served by 2 nameservers (rajeev.ns.cloudflare.com, selah.ns.cloudflare.com). It was registered on 16 December 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.7.129 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 253ms

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 187ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.7.129	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.155.122	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 238ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:781	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3032::ac43:9b7a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 239ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.7.129,172.67.155.122 ech=AEX+DQBB8wAgACAqFPXp/n/N9FT8uQXqL6A8tg3HkFmDyrexbl99quxdIwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:781,2606:4700:3032::ac43:9b7a

📝 TXT Records#

1 records 427ms

TXT Record
v=spf1 -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.columnacura.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; 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 2026-10-17 06:18:44

www	104.21.7.129 172.67.155.122 2606:4700:3030::6815:781 2606:4700:3032::ac43:9b7a (AS13335) (address records, no CNAME)
www vs bare domain	Same network columnacura.dk: 104.21.7.129 172.67.155.122 2606:4700:3030::6815:781 2606:4700:3032::ac43:9b7a (AS13335) www.columnacura.dk: 104.21.7.129 172.67.155.122 2606:4700:3030::6815:781 2606:4700:3032::ac43:9b7a (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#

334ms

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

🏷️ SOA#

84ms

Field	Value
Serial	2417374115
Primary NS (MNAME)	rajeev.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-17 06:35:15

Field	Value
Registrar	Eurodns S.A
Registered	2015-12-16
Expires	2026-12-31 (70d)

🔗 Same registrant#

13 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
cicero-fbs.dk	Eurodns S.A
cicero-lms.dk	Eurodns S.A
cicero-surf.dk	Eurodns S.A
cicerolms.dk	Eurodns S.A
columnafhir.dk	Eurodns S.A
curalearning.dk	Eurodns S.A
curaportal.dk	Eurodns S.A
curaudrulning.dk	Eurodns S.A
lær.dk	Eurodns S.A
mitskolebibliotek.dk	Eurodns S.A
servicelogistik.dk	Eurodns S.A
sitaware.dk	Eurodns S.A
systematic.dk	Eurodns S.A

📋 WHOIS#

⏱️ Lookup Timing#

253ms

187ms

265ms

AAAA

238ms

TXT

427ms

CAA

234ms

HTTPS

239ms

TLSA

225ms

SOA

84ms

MTA-STS

280ms

DNSSEC

334ms

SRV

288ms

Total

2126ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 06:18:44	1445ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-13 19:19:09 shown	2126ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-09 06:24:09	3008ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-08 06:22:45	475ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-07 15:55:11	655ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-27 13:59:47	661ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-24 19:50:18	1501ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-18 00:33:40	3421ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-11 04:35:50	1599ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-04 04:06:22	899ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-30 12:03:30	1831ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-14 18:11:17	2804ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-10 04:16:21	2194ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-16 22:10:04	2911ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-04 22:26:44	2414ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-03 19:50:15	9665ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-21 22:41:19	676ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-16 21:51:12	404ms	2 NS 2 A 0 MX	🔓 Insecure