bigumlarsen.dk DNS records

🖥️ Nameservers2 records 66ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records1 records 73ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
83.89.5.92	43200s	—	AS3292	TDC Holding A/S	83.89.0.0/16	🇩🇰 Denmark	Birkerød

📧 MX Records1 records 148ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	bigumlarsen-dk.mail.protection.outlook.com	2a01:111:f403:ca04::a 2a01:111:f403:ca09:: 2a01:111:f403:ca09::20 2a01:111:f403:ca09::3 52.101.68.12 52.101.68.15 52.101.73.1 52.101.73.8	mail-du0pr03cu00102.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am0pr04cu00500.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 → 52.98.208.104

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 518ms

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

✉️ SPF

Policy	Record (bigumlarsen.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)

🔐 DNSSEC148ms

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

🏷️ SOA0ms

Field	Value
Serial	2026080101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

66ms

A

73ms

MX

148ms

AAAA

75ms

TXT

518ms

CAA

142ms

HTTPS

152ms

TLSA

292ms

SOA

0ms

MTA-STS

95ms

DNSSEC

148ms

SRV

480ms

Total

1671ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-08 16:25:19	1671ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 11:20:24	743ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 02:13:01	2112ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 22:01:55	1086ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-22 03:43:34	2533ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 14:30:37	512ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 14:30:01	910ms	2 NS 1 A 1 MX	🔒 Secure	View