4ks.dk DNS records

🖥️ Nameservers4 records 38ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.bdm.microsoftonline.com	13.107.236.208 2603:1061:0:700::d0	ns1-208.azure-dns.com ns1-208.azure-dns.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns2.bdm.microsoftonline.com	150.171.21.208 2620:1ec:8ec:700::d0	ns2-208.azure-dns.net ns2-208.azure-dns.net	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns3.bdm.microsoftonline.com	204.14.183.208 2a01:111:4000:700::d0	ns3-208.azure-dns.org ns3-208.azure-dns.org	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns4.bdm.microsoftonline.com	208.84.5.208 2620:1ec:bda:700::d0	ns4-208.azure-dns.info ns4-208.azure-dns.info	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🌍 A Records1 records 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.146	1800s	webcluster1.webpod14-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	4ks-dk.mail.protection.outlook.com	2a01:111:f403:ca04::c 2a01:111:f403:ca09::26 2a01:111:f403:ca09::8 2a01:111:f403:ca09::e 52.101.68.12 52.101.68.15 52.101.68.16 52.101.73.2	mail-db9pr02cu00204.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-as9pr07cu00302.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 → 40.104.116.56

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 354ms

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

📝 TXT Records3 records 231ms

TXT Record
MS=ms93669220
mscid=zML47GN4GoychwYQqAEfaVwBYp0yxuuISUqFlGw3AHlqjuiXhQutA3pfdXGgxyLmlQu0LEt+X1amFTG05GpQDg==
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (4ks.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

🔗 TLSA / DANE

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

🔐 DNSSEC2107ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	1
Primary NS (MNAME)	ns1.bdm.microsoftonline.com
Responsible (RNAME)	azuredns-hostmaster@microsoft.com
Refresh	3600s
Retry	300s
Expire	2419200s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

38ms

A

45ms

MX

38ms

AAAA

67ms

TXT

231ms

CAA

43ms

HTTPS

56ms

TLSA

180ms

SOA

0ms

MTA-STS

81ms

DNSSEC

2107ms

SRV

354ms

Total

2922ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 02:18:52	2922ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-27 00:32:34	2291ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-23 14:01:38	3870ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-23 08:03:57	1133ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-22 13:43:06	1175ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-19 21:39:30	715ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-16 12:57:47	2591ms	4 NS 1 A 1 MX	🔓 Insecure	View