nicolaitang.dk

📜 Historical scan 2026-06-24 02:16:12 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nicolaitang.dk is a .dk domain served by 2 nameservers (mike.ns.cloudflare.com, sonia.ns.cloudflare.com). It was registered on 5 December 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.90.230 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. 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 299ms

Nameserver	IP addresses	PTR	ASN / ISP
mike.ns.cloudflare.com	108.162.195.63 162.159.44.63 172.64.35.63 2606:4700:58::a29f:2c3f 2803:f800:50::6ca2:c33f 2a06:98c1:50::ac40:233f	mike.ns.cloudflare.com mike.ns.cloudflare.com mike.ns.cloudflare.com mike.ns.cloudflare.com mike.ns.cloudflare.com mike.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sonia.ns.cloudflare.com	108.162.194.190 162.159.38.190 172.64.34.190 2606:4700:50::a29f:26be 2803:f800:50::6ca2:c2be 2a06:98c1:50::ac40:22be	sonia.ns.cloudflare.com sonia.ns.cloudflare.com sonia.ns.cloudflare.com sonia.ns.cloudflare.com sonia.ns.cloudflare.com sonia.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 197ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.90.230	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.162.54	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 161ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	2a00:1450:4025:c03::1b 74.125.131.26	rc-in-f27.1e100.net lu-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	192.178.211.27 2404:6800:4013:813::1a	lcbomp-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	172.253.158.26 2404:6800:4013:813::1b	so-in-f26.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt3.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1b	tp-in-f27.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt4.aspmx.l.google.com	192.178.230.26 2404:6800:400b:c01b::1b	yunrtab-in-f26.1e100.net yunrtab-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	172.67.162.54
🔶 Autoconfig	172.67.162.54

🔷 AAAA Records (IPv6)#

2 records 308ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:5ae6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::ac43:a236	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 310ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.90.230,172.67.162.54 ech=AEX+DQBBWQAgACDqMMlp0FzVienL6zfsdCoofAS3J/Za4cPm+vJq2HBwDQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:5ae6,2606:4700:3031::ac43:a236

📝 TXT Records#

2 records 526ms

TXT Record
google-site-verification=Nhy1fLW4QTlgQiA-R9nZlc6liizwQNvoLPkQvK_ON8E
v=spf1 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (nicolaitang.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.nicolaitang.dk)
p=quarantine	v=DMARC1; p=quarantine; sp=reject; rua=mailto:n@ntang.dk; ruf=mailto:n@ntang.dk; fo=1

📬 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 2026-10-21 02:38:47

www	NXDOMAIN
www vs bare domain	www does not resolve nicolaitang.dk: 104.21.90.230 172.67.162.54 2606:4700:3033::6815:5ae6 2606:4700:3036::ac43:a236 (AS13335) www.nicolaitang.dk: no address (all like this)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.nicolaitang.dk	-yksPvKqVl2BwoMJogfAiBa2sl0XXIiGJcJkSRbQTfw

🔗 TLSA / DANE#

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

🔐 DNSSEC#

481ms

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

🏷️ SOA#

288ms

Field	Value
Serial	2406401882
Primary NS (MNAME)	mike.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-23 08:01:03

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2016-12-05
Expires	2026-12-31 (66d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

299ms

197ms

161ms

AAAA

308ms

TXT

526ms

CAA

211ms

HTTPS

310ms

TLSA

518ms

SOA

288ms

MTA-STS

317ms

DNSSEC

481ms

SRV

375ms

Total

5003ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 02:38:47	1172ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-05 05:50:41	1288ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-28 04:52:00	875ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-27 04:16:08	1501ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-24 02:56:25	799ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-16 17:27:15	7242ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-08 00:30:50	1669ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-30 14:44:43	1546ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-26 12:27:51	10739ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-24 02:16:12 shown	5003ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-22 19:18:19	1097ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 15:20:32	1473ms	2 NS 2 A 5 MX	🔓 Insecure