1431.dk

📜 Historical scan 2026-06-19 20:08:27 · ← 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 49ms

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 82ms

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 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	1431-dk.b-v1.mx.microsoft	2a01:111:f403:ca04::2 2a01:111:f403:ca09::6 2a01:111:f403:ca09::8 2a01:111:f403:ca09::c 52.101.68.5 52.101.73.11 52.101.73.26 52.101.73.30	mail-du2pr03cu00102.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com mail-am7pr05cu00306.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 → 40.104.116.40

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 125ms

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

📝 TXT Records#

2 records 353ms

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#

6 records 148ms

Service / Owner	Type	Cert association
SMTP _25._tcp.1431-dk.b-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	5F88694615E4C61686E106B84C3338C6…
SMTP _25._tcp.1431-dk.b-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	6EBFF927297A5B3AAF5EAE672252C36A…
SMTP _25._tcp.1431-dk.b-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	133086C7B822371A4A3304F1661A7880…
SMTP _25._tcp.1431-dk.b-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	A6C267923B26A4A9617EDA73D8DB4FBC…
SMTP _25._tcp.1431-dk.b-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	C495D9E40F7E625BE22F83CC64305182…
SMTP _25._tcp.1431-dk.b-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	38D895F5105BC2545822C17A2444F4B0…

🔐 DNSSEC#

102ms

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

🏷️ SOA#

51ms

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#

49ms

82ms

43ms

AAAA

86ms

TXT

353ms

CAA

42ms

HTTPS

46ms

TLSA

148ms

SOA

51ms

MTA-STS

43ms

DNSSEC

102ms

SRV

125ms

Total

938ms

🕐 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	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 shown	938ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-16 12:54:35	2476ms	4 NS 1 A 1 MX	🔒 Secure