john-josefsen.dk DNS records

🖥️ Nameservers2 records 53ms

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 84ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.91	3600s	webcluster1.webpod16-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 60ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	mx.mentor-it.dk	176.62.205.101 176.62.205.102 176.62.205.103 176.62.205.104	mx1.mentor-it.dk mx2.mentor-it.dk mx3.mentor-it.dk mx4.mentor-it.dk	AS57030 Itm8 A/S AS57030 Itm8 A/S AS57030 Itm8 A/S AS57030 Itm8 A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.98.16.83

🔷 AAAA Records (IPv6)1 records 80ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:111:db:8465:932b:40a8	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 116ms

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

📝 TXT Records3 records 204ms

TXT Record
_globalsign-domain-verification=PCpdEYDf_kZwtJx6Wiaeyi3E5x3NuGstRgpC5RoF5Q
MS=ms62329059
v=spf1 ip4:212.112.130.19 include:spf.mentor-it.dk include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (john-josefsen.dk)
-all (hard fail)	v=spf1 ip4:212.112.130.19 include:spf.mentor-it.dk include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.john-josefsen.dk)
p=reject	v=DMARC1; p=reject; sp=reject; pct=100; adkim=r; aspf=s

📬 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)

🔐 DNSSEC157ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081604
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

53ms

A

84ms

MX

60ms

AAAA

80ms

TXT

204ms

CAA

50ms

HTTPS

74ms

TLSA

84ms

SOA

0ms

MTA-STS

137ms

DNSSEC

157ms

SRV

116ms

Total

1001ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-17 10:45:59	1001ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-15 18:58:09	1183ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-27 02:44:39	5129ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-15 18:27:11	861ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-11 00:31:30	8911ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 20:20:07	2233ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 20:41:21	567ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 01:29:07	11816ms	2 NS 1 A 1 MX	🔒 Secure	View