1431.dk

📜 Historical scan 2026-09-18 20:28:22 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

1431.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 7 December 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 52.236.60.130 is hosted by Microsoft Corporation (AS8075) in Ireland. Mail is handled by 1431-dk.b-v1.mx.microsoft. The zone is DNSSEC-signed and validates, 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#

4 records 38ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
52.236.60.130	3600s	—	AS8075	Microsoft Corporation	52.224.0.0/11	🇮🇪 Ireland	Dublin

📧 MX Records#

1 records 27ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	1431-dk.b-v1.mx.microsoft	2a01:111:f403:c967::8 2a01:111:f403:ca04::e 2a01:111:f403:ca3c::a 2a01:111:f403:ca48::8 52.101.209.28 52.101.68.18 52.101.68.39 52.101.73.126	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-zrxpr07cu00102.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-cpjpr05cu00104.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am8pr83cu00106.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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 57ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 137ms

TXT Record
MS=ms31784257
v=spf1 include:spf.protection.outlook.com include:spf.diaphoni.net ip4:188.176.102.154 -all

✉️ SPF#

Policy	Record (1431.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.diaphoni.net ip4:188.176.102.154 -all

📨 DMARC#

Policy	Record (_dmarc.1431.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:dmarc@1431.dk;

📬 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 2026-10-13 01:52:18

www CNAME	ws206.diaphoni.net (all on diaphoni.net) → 52.236.60.130 (AS8075)
www vs bare domain	Same network 1431.dk: 52.236.60.130 (AS8075) www.1431.dk: 52.236.60.130 (AS8075)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

4 records 82ms

Service / Owner	Type	Cert association
SMTP _25._tcp.1431-dk.b-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	C1AD7778796D20BCA65C889A26550211…
SMTP _25._tcp.1431-dk.b-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	EA7A25255D111FC3CE4CB8FABE3ADF9C…
SMTP _25._tcp.1431-dk.b-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	54883CC5F1849331E6BF5002C3129D20…
SMTP _25._tcp.1431-dk.b-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	803F7447CC75B208DBCA042346F5D8DF…

🔐 DNSSEC#

72ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

0ms

Field	Value
Serial	2025043001
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-11 19:00:37

Field	Value
Registrar	Simply.com A/S
Registered	2010-12-07
Expires	2027-12-31 (440d)

🔗 Same registrant#

1 domain

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
erhvervnorddanmark.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

38ms

45ms

27ms

AAAA

44ms

TXT

137ms

CAA

31ms

HTTPS

39ms

TLSA

82ms

SOA

0ms

MTA-STS

42ms

DNSSEC

72ms

SRV

57ms

Total

612ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 01:52:18	803ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-01 07:20:51	799ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-18 20:28:22 shown	612ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-28 09:37:42	858ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-28 16:05:39	1677ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-19 20:08:27	938ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-16 12:54:35	2476ms	4 NS 1 A 1 MX	🔒 Secure