itbyen.dk DNS records

🖥️ Nameservers4 records 42ms

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 76ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.183.139.239	—	—	AS47292	Sentia Denmark A/S	46.183.138.0/23	🇩🇰 Denmark	—

📧 MX Records1 records 99ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	itbyen-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca09:: 2a01:111:f403:ca09::9 2a01:111:f403:ca09::f 52.101.68.12 52.101.68.18 52.101.68.39 52.101.73.12	mail-du2pr03cu00102.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am4pr0401cu00104.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 → 52.97.229.216
🔶 Autoconfig	itbyen.dk → 46.183.139.239

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records2 records 101ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	autodiscover.gigahost.DK
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 164ms

TXT Record
mscid=xKmjhpPjDyCzVDalle2XvHqFAIe7WGd7Q5mzOtQmdlBaotBbdOjZGs+ZaNdjdTpNA1TD/Z1wFEOc8EVTNmX4/A==
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (itbyen.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)

🔐 DNSSEC70ms

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

🏷️ SOA40ms

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

42ms

A

76ms

MX

99ms

AAAA

41ms

TXT

164ms

CAA

41ms

HTTPS

92ms

TLSA

667ms

SOA

40ms

MTA-STS

52ms

DNSSEC

70ms

SRV

101ms

Total

1360ms