jakobsen-consulting.dk DNS records

🖥️ Nameservers2 records 328ms

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 274ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
87.53.91.187	43200s	—	AS3292	TDC Holding A/S	87.48.0.0/13	🇩🇰 Denmark	Kolding

📧 MX Records1 records 332ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	jakobsenconsulting-dk02b.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca09:: 2a01:111:f403:ca09::1 2a01:111:f403:ca09::8 52.101.68.10 52.101.68.25 52.101.73.2 52.101.73.22	mail-dbapr03cu00100.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-am7pr05cu00106.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

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 412ms

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

📝 TXT Records1 records 797ms

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

✉️ SPF

Policy	Record (jakobsen-consulting.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)

🔐 DNSSEC597ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081201
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

328ms

A

274ms

MX

332ms

AAAA

301ms

TXT

797ms

CAA

387ms

HTTPS

304ms

TLSA

541ms

SOA

0ms

MTA-STS

477ms

DNSSEC

597ms

SRV

412ms

Total

5794ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-13 05:47:37	5794ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-19 13:33:52	1237ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-14 08:01:33	1287ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 19:53:46	680ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 20:36:45	1167ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 01:46:07	2513ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 21:51:34	781ms	2 NS 1 A 1 MX	🔒 Secure	View