rudbol.dk DNS records

🖥️ Nameservers4 records 49ms

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 50ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
54.37.114.45	3600s	web01.conviator.com	AS16276	OVH SAS	54.36.0.0/14	🇫🇷 France	—

📧 MX Records1 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	rudbol-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca09::2 2a01:111:f403:ca09::28 2a01:111:f403:ca09::3 52.101.68.36 52.101.73.155 52.101.73.2 52.101.73.26	mail-db4pr02cu00406.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am7pr02cu00203.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-as9pr05cu01302.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

🔌 SRV Records1 records 71ms

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

📝 TXT Records2 records 193ms

TXT Record
mscid=7SrO+gnkRPgh9KDJ12aWvV2iy1It3FcK+1BvjLwxhcD8HRZ+PsmFoPIlQX8S7oUxY+gnSnlpbIwD42DRVQ6Zow==
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (rudbol.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)

🔐 DNSSEC92ms

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

49ms

A

50ms

MX

42ms

AAAA

54ms

TXT

193ms

CAA

60ms

HTTPS

66ms

TLSA

756ms

SOA

0ms

MTA-STS

74ms

DNSSEC

92ms

SRV

71ms

Total

1519ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 05:02:47	1519ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-08-26 11:57:48	979ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-24 22:45:20	1375ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 12:57:16	3058ms	4 NS 1 A 1 MX	🔓 Insecure	View