postkortcentral.dk

📜 Historical scan 2026-08-18 21:33:04 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

postkortcentral.dk is a .dk domain served by 2 nameservers (irma.ns.cloudflare.com, thomas.ns.cloudflare.com). It was registered on 7 August 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.95.211 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 377ms

Nameserver	IP addresses	PTR	ASN / ISP
irma.ns.cloudflare.com	108.162.192.166 172.64.32.166 173.245.58.166 2606:4700:50::adf5:3aa6 2803:f800:50::6ca2:c0a6 2a06:98c1:50::ac40:20a6	irma.ns.cloudflare.com irma.ns.cloudflare.com irma.ns.cloudflare.com irma.ns.cloudflare.com irma.ns.cloudflare.com irma.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
thomas.ns.cloudflare.com	108.162.193.238 172.64.33.238 173.245.59.238 2606:4700:58::adf5:3bee 2803:f800:50::6ca2:c1ee 2a06:98c1:50::ac40:21ee	thomas.ns.cloudflare.com thomas.ns.cloudflare.com thomas.ns.cloudflare.com thomas.ns.cloudflare.com thomas.ns.cloudflare.com thomas.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 406ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.95.211	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.148.158	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 377ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	142.250.110.26 2a00:1450:400c:c09::1a 2a00:1450:400c:c09::1a	wf-in-f26.1e100.net wm-in-x1a.1e100.net wm-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.213.27 2a00:1450:4013:c1e::1a	yugrqzs-in-f27.1e100.net yugrqzs-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	142.251.127.26 2a00:1450:4001:c21::1a	lcfrai-in-f26.1e100.net lcfrai-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	192.178.211.27 2a00:1450:4025:4401::1b	lcbomp-in-f27.1e100.net yuskedq-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	142.250.147.26 2a00:1450:4025:c01::1b	rd-in-f26.1e100.net rd-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	postkortcentral.dk → 91.102.91.50
🔶 Autoconfig	postkortcentral.dk → 91.102.91.50

🔷 AAAA Records (IPv6)#

2 records 385ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:949e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:5fd3	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 434ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.95.211,172.67.148.158 ech=AEX+DQBBmgAgACA1smk0Qt2HIaNDBiPL3uqJ1QPehkyj7EZpiwu5J30EJwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:949e,2606:4700:3036::6815:5fd3

📝 TXT Records#

3 records 1004ms

TXT Record
ca3-55638e11ca974048b615390e5a63476e
google-site-verification=inwd8wQkuFzvhzf9VLFwrjyBLwodO48t94RI090exZw
v=spf1 include:_spf.google.com -all

✉️ SPF#

Policy	Record (postkortcentral.dk)
-all (hard fail)	v=spf1 include:_spf.google.com -all

📨 DMARC#

Policy	Record (_dmarc.postkortcentral.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc-agg@12net.dk; ruf=mailto:dmarc-afrf@12net.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 2026-10-07 22:37:01

www	104.21.95.211 172.67.148.158 2606:4700:3031::ac43:949e 2606:4700:3036::6815:5fd3 (AS13335) (address records, no CNAME)
www vs bare domain	Same network postkortcentral.dk: 104.21.95.211 172.67.148.158 2606:4700:3031::ac43:949e 2606:4700:3036::6815:5fd3 (AS13335) www.postkortcentral.dk: 104.21.95.211 172.67.148.158 2606:4700:3031::ac43:949e 2606:4700:3036::6815:5fd3 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.postkortcentral.dk	6qy0KAo17Qi19lYl0HtnDyaxpinsQnzIGpNVslC7wFg
TXT	_acme-challenge.postkortcentral.dk	qRiQXPfZmksW36U5ckly298z2O0Tzl7ub8QDXkx20R8

🔗 TLSA / DANE#

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

🔐 DNSSEC#

835ms

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	2412565568
Primary NS (MNAME)	irma.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-15 17:49:55

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2001-08-07
Expires	2027-09-30 (347d)

🔗 Same registrant#

6 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
12net.dk	Punktum dk A/S (direct)
androidguide.dk	Punktum dk A/S (direct)
it-kids.dk	Punktum dk A/S (direct)
justfuck.dk	Punktum dk A/S (direct)
spilforalle.dk	Punktum dk A/S (direct)
superportal.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

377ms

406ms

377ms

AAAA

385ms

TXT

1004ms

CAA

377ms

HTTPS

434ms

TLSA

480ms

SOA

0ms

MTA-STS

596ms

DNSSEC

835ms

SRV

523ms

Total

5881ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-20 03:35:08	1369ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-21 01:01:51	11413ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-18 21:33:04 shown	5881ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-23 06:53:05	9797ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-01 12:35:09	1039ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-24 00:14:41	1100ms	2 NS 2 A 5 MX	❓ Unknown
2026-06-23 13:34:02	964ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 05:22:18	985ms	2 NS 2 A 5 MX	🔓 Insecure