cisterne.dk

📜 Historical scan 2026-08-19 11:55:09 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cisterne.dk is a .dk domain served by 2 nameservers (noel.ns.cloudflare.com, ulla.ns.cloudflare.com). It was registered on 30 October 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.15.48 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, has no 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 241ms

Nameserver	IP addresses	PTR	ASN / ISP
noel.ns.cloudflare.com	108.162.193.216 172.64.33.216 173.245.59.216 2606:4700:58::adf5:3bd8 2803:f800:50::6ca2:c1d8 2a06:98c1:50::ac40:21d8	noel.ns.cloudflare.com noel.ns.cloudflare.com noel.ns.cloudflare.com noel.ns.cloudflare.com noel.ns.cloudflare.com noel.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ulla.ns.cloudflare.com	108.162.192.233 172.64.32.233 173.245.58.233 2606:4700:50::adf5:3ae9 2803:f800:50::6ca2:c0e9 2a06:98c1:50::ac40:20e9	ulla.ns.cloudflare.com ulla.ns.cloudflare.com ulla.ns.cloudflare.com ulla.ns.cloudflare.com ulla.ns.cloudflare.com ulla.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 223ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.15.48	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.205.137	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 233ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:f30	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:cd89	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 247ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.15.48,172.67.205.137 ech=AEX+DQBBDAAgACDhwkjpNITAK8hxQq/wovR61Q7IT9o/W5n4dZtt3k8PSAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:f30,2606:4700:3037::ac43:cd89

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-09 12:35:42

www	104.21.15.48 172.67.205.137 2606:4700:3032::6815:f30 2606:4700:3037::ac43:cd89 (AS13335) (address records, no CNAME)
www vs bare domain	Same network cisterne.dk: 104.21.15.48 172.67.205.137 2606:4700:3032::6815:f30 2606:4700:3037::ac43:cd89 (AS13335) www.cisterne.dk: 104.21.15.48 172.67.205.137 2606:4700:3032::6815:f30 2606:4700:3037::ac43:cd89 (AS13335)
Wildcard	No

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.cisterne.dk	E4mbsP_EQmPkpKUVUhDU8RC0XnmGFN8PpU8lRszR2dY
TXT	_acme-challenge.cisterne.dk	qLoRs0dtulYDWMeBQeUObMX0oZ8PYu0DunImvG4a1ks

🔗 TLSA / DANE#

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

🔐 DNSSEC#

372ms

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	2412541195
Primary NS (MNAME)	noel.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-09 13:21:17

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2024-10-30
Expires	2027-10-29 (375d)

📋 WHOIS#

⏱️ Lookup Timing#

241ms

223ms

225ms

AAAA

233ms

TXT

573ms

CAA

240ms

HTTPS

247ms

TLSA

236ms

SOA

0ms

MTA-STS

310ms

DNSSEC

372ms

SRV

301ms

Total

4642ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 12:35:42	658ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-24 02:34:49	568ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-21 01:03:36	1638ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-11 20:37:33	1801ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-04 19:38:12	534ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-28 02:02:04	520ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-24 17:08:42	574ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-19 11:55:09 shown	4642ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-11 01:26:33	5212ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-25 21:39:30	716ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-21 03:19:25	844ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-16 20:56:14	412ms	2 NS 2 A 0 MX	🔓 Insecure