ndb.dk

📜 Historical scan 2026-09-17 05:03:47 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ndb.dk is a .dk domain served by 2 nameservers (colette.ns.cloudflare.com, otto.ns.cloudflare.com). It was registered on 11 January 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.96.44 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. 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 28ms

Nameserver	IP addresses	PTR	ASN / ISP
colette.ns.cloudflare.com	108.162.194.28 162.159.38.28 172.64.34.28 2606:4700:50::a29f:261c 2803:f800:50::6ca2:c21c 2a06:98c1:50::ac40:221c	colette.ns.cloudflare.com colette.ns.cloudflare.com colette.ns.cloudflare.com colette.ns.cloudflare.com colette.ns.cloudflare.com colette.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
otto.ns.cloudflare.com	108.162.195.135 162.159.44.135 172.64.35.135 2606:4700:58::a29f:2c87 2803:f800:50::6ca2:c387 2a06:98c1:50::ac40:2387	otto.ns.cloudflare.com otto.ns.cloudflare.com otto.ns.cloudflare.com otto.ns.cloudflare.com otto.ns.cloudflare.com otto.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 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.96.44	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.173.1	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 30ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.protonmail.ch	176.119.200.128 185.205.70.128 185.70.42.128	mail.protonmail.ch mail.protonmail.ch mail.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG
20	300s	mailsec.protonmail.ch	176.119.200.129 185.205.70.129 185.70.42.129	mailsec.protonmail.ch mailsec.protonmail.ch mailsec.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG

🔷 AAAA Records (IPv6)#

2 records 41ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:602c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:ad01	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 36ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.96.44,172.67.173.1 ech=AEX+DQBB+gAgACDOP8V6mQ7RVrv2Akcel8U+fKinc38wJQMn9VIo4KJpJwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:602c,2606:4700:3035::ac43:ad01

📝 TXT Records#

2 records 162ms

TXT Record
protonmail-verification=b50e27f388e98b02f1989abeb14680469868121f
v=spf1 include:_spf.protonmail.ch ~all

✉️ SPF#

Policy	Record (ndb.dk)
~all (soft fail)	v=spf1 include:_spf.protonmail.ch ~all

📨 DMARC#

Policy	Record (_dmarc.ndb.dk)
p=quarantine	v=DMARC1; p=quarantine

📬 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 2026-10-10 15:37:37

www	104.21.96.44 172.67.173.1 2606:4700:3033::6815:602c 2606:4700:3035::ac43:ad01 (AS13335) (address records, no CNAME)
www vs bare domain	Same network ndb.dk: 104.21.96.44 172.67.173.1 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) www.ndb.dk: 104.21.96.44 172.67.173.1 2606:4700:3033::6815:602c 2606:4700:3035::ac43:ad01 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

4 records 74ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…

🔐 DNSSEC#

120ms

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	2414878787
Primary NS (MNAME)	colette.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-10 11:51:34

Field	Value
Registrar	Key-Systems GmbH
Registered	2005-01-11
Expires	2030-01-31 (1198d)

📋 WHOIS#

⏱️ Lookup Timing#

28ms

39ms

30ms

AAAA

41ms

TXT

162ms

CAA

38ms

HTTPS

36ms

TLSA

74ms

SOA

0ms

MTA-STS

58ms

DNSSEC

120ms

SRV

57ms

Total

1438ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 10:25:58	571ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-26 12:48:35	987ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-17 18:33:10	1328ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-17 05:03:47 shown	1438ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-11 06:44:54	2385ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-27 16:06:57	960ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-25 07:29:35	10729ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-15 21:34:50	1842ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-28 17:44:39	2109ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-22 10:22:41	968ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-18 04:42:27	2152ms	2 NS 2 A 2 MX	🔓 Insecure