postbyen.dk

📜 Historical scan 2026-09-17 05:34:29 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

postbyen.dk is a .dk domain served by 5 nameservers (ns1.brandshelter.com, ns2.brandshelter.de, ns3.brandshelter.info and 2 more). It was registered on 6 March 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.106.67 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by postbyen-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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#

5 records 50ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.brandshelter.com	193.227.117.9	ns1.brandshelter.com	AS1921 ipcom GmbH
ns2.brandshelter.de	194.50.187.11 2a04:2b00:14dd::11	ns2.brandshelter.de ns11.j.centralnic-dns.com	AS207021 ipcom GmbH AS1921 ipcom GmbH
ns3.brandshelter.info	194.0.182.12 2a04:2b00:14ee::12	ns3.brandshelter.info ns12.k.centralnic-dns.com	AS1921 ipcom GmbH AS1921 ipcom GmbH
ns4.brandshelter.net	193.227.117.10	ns4.brandshelter.net	AS1921 ipcom GmbH
ns5.brandshelter.us	194.50.187.14	ns5.brandshelter.us	AS207021 ipcom GmbH

🌍 A Records#

1 records 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.106.67	600s	linux207.curanet.dk	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

1 records 39ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	postbyen-dk.mail.protection.outlook.com	2a01:111:f403:c967:: 2a01:111:f403:c967::2 2a01:111:f403:c967::4 2a01:111:f403:c967::6 52.101.209.2 52.101.209.4 52.101.209.6 52.101.209.74	mail-cpcp307cu00400.inbound.protection.outlook.com mail-cpap307cu00402.inbound.protection.outlook.com mail-cpap307cu00204.inbound.protection.outlook.com mail-cpcp307cu00206.inbound.protection.outlook.com mail-cpap307cu00402.inbound.protection.outlook.com mail-cpap307cu00204.inbound.protection.outlook.com mail-cpcp307cu00206.inbound.protection.outlook.com mail-cpcp307cu00402.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24
🔶 Autoconfig	autoconfig-mf.onlinemail.io → 185.21.40.62

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 261ms

TXT Record
google-site-verification=ykuE1p4dTnZHksSP619Ej3JjXqZXI-8yAm7FhQPlWtc
MS=ms61019530
v=spf1 a mx include:spf.protection.outlook.com include:spf.curanet.dk include:spf.mailjet.com -all

✉️ SPF#

Policy	Record (postbyen.dk)
-all (hard fail)	v=spf1 a mx include:spf.protection.outlook.com include:spf.curanet.dk include:spf.mailjet.com -all

📨 DMARC#

Policy	Record (_dmarc.postbyen.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:mnehokxg@ag.eu.dmarcadvisor.com; adkim=s; aspf=s;

📬 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 2026-10-08 21:02:24

www	94.231.106.67 (AS48854) (address records, no CNAME)
www vs bare domain	Same network postbyen.dk: 94.231.106.67 (AS48854) www.postbyen.dk: 94.231.106.67 (AS48854)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-postbyen-dk._domainkey.postbyen.d-v1.dkim.mail.microsoft	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: 7/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

2072ms

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	2026032700
Primary NS (MNAME)	ns1.brandshelter.com
Responsible (RNAME)	tech@brandshelter.com
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-06 09:31:43

Field	Value
Registrar	Key-Systems GmbH
Registered	2017-03-06
Expires	2027-03-31 (165d)

📋 WHOIS#

⏱️ Lookup Timing#

50ms

45ms

39ms

AAAA

38ms

TXT

261ms

CAA

43ms

HTTPS

54ms

TLSA

240ms

SOA

0ms

MTA-STS

73ms

DNSSEC

2072ms

SRV

82ms

Total

2709ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 18:32:22	1123ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-29 14:51:04	1110ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-23 11:39:30	2630ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-17 05:34:29 shown	2709ms	5 NS 1 A 1 MX	🔓 Insecure
2026-08-28 03:31:50	10400ms	5 NS 1 A 1 MX	🔓 Insecure
2026-07-01 13:04:08	1458ms	5 NS 1 A 1 MX	🔓 Insecure
2026-06-19 23:30:50	1107ms	5 NS 1 A 1 MX	🔓 Insecure
2026-06-18 03:52:19	1261ms	5 NS 1 A 1 MX	🔓 Insecure