plesner-jacobsen.dk DNS records

🖥️ Nameservers2 records 26ms

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 27ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
62.135.241.91	900s	62-135-241-91-cable.dk.customer.tdc.net	AS3292	TDC Holding A/S	62.135.128.0/17	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 26ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	43200s	plesnerjacobsen-dk01i.mail.protection.outlook.com	2a01:111:f403:ca09::6 2a01:111:f403:ca09::b 2a01:111:f403:ca38::a 2a01:111:f403:ca3c::a 52.101.209.153 52.101.73.11 52.101.73.153 52.101.91.159	mail-am4pr0401cu00106.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-wa4pr05cu00102.inbound.protection.outlook.com mail-zrxpr07cu00102.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-matpr04cu00207.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 Records1 records 41ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	1	443	autodiscover.outlook.com

📝 TXT Records3 records 105ms

TXT Record
google-site-verification=qFdQmkgB5AjBm67xXSXrT8KZD6i0MtZ5rEzt6ZgR_V0
MS=ms58604373
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (plesner-jacobsen.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.plesner-jacobsen.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:martin@plesner-jacobsen.dk,mailto:2105f1c1@mxtoolbox.dmarc-report.com; ruf=mailto:martin@plesner-jacobsen.dk,mailto:2105f1c1@forensics.dmarc-report.com; fo=1; pct=100

📬 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)

🔐 DNSSEC99ms

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

🏷️ SOA0ms

Field	Value
Serial	2026090202
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

26ms

A

27ms

MX

26ms

AAAA

28ms

TXT

105ms

CAA

29ms

HTTPS

23ms

TLSA

297ms

SOA

0ms

MTA-STS

34ms

DNSSEC

99ms

SRV

41ms

Total

758ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-04 10:26:29	758ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 06:44:17	1404ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 13:10:43	1268ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 16:57:25	965ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 20:52:05	1025ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 14:46:01	1386ms	2 NS 1 A 1 MX	🔒 Secure	View