4245.dk

📜 Historical scan 2026-06-26 02:03:46 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

4245.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 12 February 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by 4245-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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 215ms

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#

🌍

No A records found

📧 MX Records#

1 records 241ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	4245-dk.mail.protection.outlook.com	2a01:111:f403:ca09:: 2a01:111:f403:ca09::1 2a01:111:f403:ca09::2 2a01:111:f403:ca09::20 52.101.68.16 52.101.68.21 52.101.68.5 52.101.73.8	mail-am3pr04cu00500.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am0pr04cu00500.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 → 40.104.116.8

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 314ms

TXT Record
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (4245.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 17:32:58

www	NXDOMAIN
www vs bare domain	Neither resolves 4245.dk: no address www.4245.dk: no address
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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

332ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

240ms

Field	Value
Serial	2020072990
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 2026-10-13 17:52:20

Field	Value
Registrar	Simply.com A/S
Registered	2008-02-12
Expires	2036-02-29 (3411d)

🔗 Same registrant#

3 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
brostrom.dk	Simply.com A/S
broström.dk	Simply.com A/S
brostrøm.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

215ms

234ms

241ms

AAAA

270ms

TXT

314ms

CAA

224ms

HTTPS

223ms

TLSA

469ms

SOA

240ms

MTA-STS

227ms

DNSSEC

332ms

SRV

554ms

Total

5081ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 17:32:58	1333ms	4 NS 0 A 1 MX	🔒 Secure
2026-10-07 20:10:23	960ms	4 NS 0 A 1 MX	🔒 Secure
2026-10-01 05:32:05	1075ms	4 NS 0 A 1 MX	🔒 Secure
2026-06-26 02:03:46 shown	5081ms	4 NS 0 A 1 MX	🔒 Secure
2026-06-20 23:45:33	1128ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 12:43:55	4739ms	4 NS 0 A 1 MX	🔒 Secure