steffenlarsen.dk

📜 Historical scan 2026-10-01 13:59:11 · ← Latest scan

steffenlarsen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 5 November 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by steffenlarsen-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers

2 records 43ms

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 Records

🌍

No A records found

📧 MX Records

1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	43200s	steffenlarsen-dk.mail.protection.outlook.com	2a01:111:f403:ca04::e 2a01:111:f403:ca09::28 2a01:111:f403:ca21::e 2a01:111:f403:ca48::e 52.101.103.143 52.101.181.156 52.101.73.126 52.101.91.156	mail-db8pr02cu00106.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-miypr03cu00206.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-maspr04cu00104.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 → 52.98.149.152

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records

1 records 119ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records

2 records 137ms

TXT Record
MS=ms93262496
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (steffenlarsen.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

🧩 Web & zone

latest probe, not this scan · checked 2026-10-02 14:03:20

www	Address record (no CNAME)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE

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

🔐 DNSSEC

133ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA

43ms

Field	Value
Serial	2026100101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

WHOIS fetched 2026-10-02 14:36:21

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2016-11-05
Expires	2026-11-30 (58d)

📋 WHOIS

⏱️ Lookup Timing

43ms

36ms

35ms

AAAA

36ms

TXT

137ms

CAA

34ms

HTTPS

34ms

TLSA

754ms

SOA

43ms

MTA-STS

46ms

DNSSEC

133ms

SRV

119ms

Total

1401ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-10-02 14:03:20	743ms	2 NS 0 A 1 MX	🔒 Secure
2026-10-01 13:59:11 shown	1401ms	2 NS 0 A 1 MX	🔒 Secure
2026-09-30 13:55:19	1174ms	2 NS 0 A 1 MX	🔒 Secure
2026-09-23 17:41:06	1013ms	2 NS 0 A 1 MX	🔒 Secure
2026-08-27 08:48:01	1019ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-23 03:23:58	2824ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-17 12:14:32	1767ms	2 NS 0 A 1 MX	🔒 Secure