columnacura.dk

📜 Historical scan 2026-06-16 21:51:12 · ← 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 53ms

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

🌍 A Records#

2 records 45ms

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

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 44ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:781	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:9b7a	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 43ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.7.129,172.67.155.122 ech=AEX+DQBBlwAgACARtnhQ7LTw1FhCMpClda8WTnV4Yh2JhRcKaIGJtucSdAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:781,2606:4700:3036::ac43:9b7a

📝 TXT Records#

1 records 127ms

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#

133ms

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

🏷️ SOA#

43ms

Field	Value
Serial	2406756775
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 (72d)

🔗 Same registrant#

9 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-lms.dk	Eurodns S.A
cicero-surf.dk	Eurodns S.A
columnafhir.dk	Eurodns S.A
curalearning.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

📋 WHOIS#

⏱️ Lookup Timing#

53ms

45ms

48ms

AAAA

44ms

TXT

127ms

CAA

42ms

HTTPS

43ms

TLSA

43ms

SOA

43ms

MTA-STS

54ms

DNSSEC

133ms

SRV

0ms

Total

404ms

🕐 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	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 shown	404ms	2 NS 2 A 0 MX	🔓 Insecure