4a.dk DNS records

🖥️ Nameservers4 records 32ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.eurodns.com	199.167.66.107 2610:1c8:b002::107	ns1.eurodns.com ns1.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns2.eurodns.com	104.37.178.107 2610:1c8:b001::107	ns2.eurodns.com ns2.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns3.eurodns.com	199.167.66.108 2610:1c8:b002::108	ns3.eurodns.com ns3.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns4.eurodns.com	104.37.178.108 2610:1c8:b001::108	ns4.eurodns.com ns4.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC

🌍 A Records1 records 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
80.92.65.188	600s	80-92-65-188.ip.dclux.com	AS24611	Datacenter Luxembourg S.A.	80.92.64.0/19	🇱🇺 Luxembourg	Luxembourg

📧 MX Records1 records 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	4a-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca09::2 2a01:111:f403:ca09::3 2a01:111:f403:ca09::c 52.101.181.153 52.101.68.27 52.101.73.2 52.101.73.30	mail-db7pr03cu00401.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-as9pr07cu00302.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

📝 TXT Records3 records 196ms

TXT Record
7h+Vm9FBiRKIqMvoDza6xwhXpWebVz7g1Gi1MniOr+pENve8MFgB557H/FO+2Jq/B/SYzQR75N+MkV+79q7NwQ==
MS=ms83721365
v=spf1 -all

✉️ SPF

Policy	Record (4a.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC

Policy	Record (_dmarc.4a.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:mvb73pgw@ag.eu.dmarcian.com;

📬 MTA-STS

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT

Status	Report address (rua)
✓ Enabled	mailto:mvb73pgw@tls.eu.dmarcian.com

📜 CAA Records

✗ No CAA records — any CA may issue certificates

🔗 TLSA / DANE

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

🔐 DNSSEC111ms

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

🏷️ SOA0ms

Field	Value
Serial	2025072375
Primary NS (MNAME)	ns1.eurodns.com
Responsible (RNAME)	hostmaster@eurodns.com
Refresh	43200s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

32ms

A

35ms

MX

31ms

AAAA

40ms

TXT

196ms

CAA

33ms

HTTPS

41ms

TLSA

712ms

SOA

0ms

MTA-STS

66ms

DNSSEC

111ms

SRV

107ms

Total

1258ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 15:22:57	1258ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 14:31:56	1154ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 14:24:03	1385ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-08-10 16:13:29	25116ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-08-09 15:32:54	9195ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-07-25 12:28:45	1116ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-07-23 11:15:45	1237ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-07-22 06:05:33	1120ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-07-20 21:52:43	10420ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-07-04 13:44:26	1827ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 12:22:42	10024ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 21:00:37	5433ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 11:40:29	844ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-22 07:04:39	925ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-16 13:14:20	1077ms	4 NS 1 A 1 MX	🔒 Secure	View