davidjacobjensen.dk DNS records

🖥️ Nameservers2 records 55ms

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 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
174.121.161.226	43200s	fenway.accountservergroup.com	AS36351	IBM Cloud	174.120.0.0/14	🇺🇸 United States	—

📧 MX Records2 records 71ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	in1-smtp.messagingengine.com	103.168.172.216 103.168.172.217 103.168.172.218 103.168.172.219 103.168.172.220 103.168.172.221 103.168.172.222 103.168.172.223	phl-mx-01.messagingengine.com phl-mx-02.messagingengine.com phl-mx-03.messagingengine.com phl-mx-04.messagingengine.com phl-mx-05.messagingengine.com phl-mx-06.messagingengine.com phl-mx-07.messagingengine.com phl-mx-08.messagingengine.com	AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd
20	3600s	in2-smtp.messagingengine.com	202.12.124.216 202.12.124.217 202.12.124.218 202.12.124.219	stl-mx-01.messagingengine.com stl-mx-02.messagingengine.com stl-mx-03.messagingengine.com stl-mx-04.messagingengine.com	AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	174.121.161.226
🔶 Autoconfig	174.121.161.226

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 226ms

TXT Record
v=spf1 include:spf.messagingengine.com ?all

✉️ SPF

Policy	Record (davidjacobjensen.dk)
?all (neutral)	v=spf1 include:spf.messagingengine.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)

🔐 DNSSEC147ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081101
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

55ms

A

42ms

MX

71ms

AAAA

93ms

TXT

226ms

CAA

63ms

HTTPS

80ms

TLSA

259ms

SOA

0ms

MTA-STS

112ms

DNSSEC

147ms

SRV

124ms

Total

1604ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-12 11:18:17	1604ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-18 20:08:33	1538ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-14 00:07:11	2193ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-28 04:10:50	972ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-18 23:03:18	1058ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-17 01:10:24	1496ms	2 NS 1 A 2 MX	🔒 Secure	View