45a.dk

📜 Historical scan 2026-09-29 18:45:16 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

45a.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 20 April 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.100 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by 45a-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 29ms

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 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.100	600s	dnsforward.simply.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

1 records 29ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	45a-dk.mail.protection.outlook.com	2a01:111:f403:c967::a 2a01:111:f403:ca04::10 2a01:111:f403:ca21::c 2a01:111:f403:ca48::10 52.101.68.10 52.101.68.25 52.101.68.27 52.101.91.153	mail-cpjpr05cu00102.inbound.protection.outlook.com mail-dbapr03cu00100.inbound.protection.outlook.com mail-matpr04cu00204.inbound.protection.outlook.com mail-miypr05cu00100.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-matpr04cu00101.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

📝 TXT Records#

2 records 153ms

TXT Record
MS=ms65136164
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (45a.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 14:45:56

www	94.231.103.100 (AS48854) (address records, no CNAME)
www vs bare domain	Same network 45a.dk: 94.231.103.100 (AS48854) www.45a.dk: 94.231.103.100 (AS48854)
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#

53ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2022111702
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 00:05:26

Field	Value
Registrar	Simply.com A/S
Registered	2010-04-20
Expires	2027-04-30 (194d)

📋 WHOIS#

⏱️ Lookup Timing#

29ms

40ms

29ms

AAAA

28ms

TXT

153ms

CAA

36ms

HTTPS

30ms

TLSA

176ms

SOA

0ms

MTA-STS

47ms

DNSSEC

53ms

SRV

55ms

Total

676ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 14:45:56	1914ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-02 00:27:49	1558ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-01 00:17:43	1025ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-29 18:45:16 shown	676ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-28 21:04:08	1273ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-24 18:30:13	2126ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-16 13:14:17	809ms	4 NS 1 A 1 MX	🔒 Secure