alfsen.dk DNS records

🖥️ Nameservers2 records 81ms

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 104ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.116	3600s	webcluster2.webpod13-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 92ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	alfsen-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca04::b 2a01:111:f403:ca04::d 2a01:111:f403:ca09::e 52.101.103.143 52.101.68.25 52.101.73.19 52.101.73.2	mail-db4pr02cu00406.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-as8pr04cu00803.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 → 40.104.116.24
🔶 Autoconfig	195.249.40.163

🔷 AAAA Records (IPv6)1 records 80ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10b:80a3:7199:fd8e:fe20	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 143ms

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

📝 TXT Records2 records 355ms

TXT Record
MS=ms52667778
v=spf1 a mx include:spf.protection.outlook.com ~all

✉️ SPF

Policy	Record (alfsen.dk)
~all (soft fail)	v=spf1 a mx 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)

🔐 DNSSEC235ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082401
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

81ms

A

104ms

MX

92ms

AAAA

80ms

TXT

355ms

CAA

72ms

HTTPS

70ms

TLSA

887ms

SOA

0ms

MTA-STS

134ms

DNSSEC

235ms

SRV

143ms

Total

2580ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 13:33:53	2580ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-23 11:46:13	2654ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-15 08:44:43	1138ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-07 13:53:46	5350ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-16 15:58:16	2368ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 02:59:06	815ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 07:10:17	826ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 12:50:55	1971ms	2 NS 1 A 1 MX	🔒 Secure	View