jfost.dk DNS records

🖥️ Nameservers2 records 205ms

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 201ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
77.111.240.167	3600s	webcluster40.webpod11-cph3.one.com	AS51468	One.com A/S	77.111.240.0/22	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 229ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	jfost-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca09::3 2a01:111:f403:ca09::7 2a01:111:f403:ca09::8 52.101.68.15 52.101.73.19 52.101.73.22 52.101.73.24	mail-db4pr02cu00406.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-as8pr05cu00300.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 → 40.104.116.40

🔷 AAAA Records (IPv6)1 records 221ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:102:803f:bf16:e036:1434	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

📝 TXT Records2 records 400ms

TXT Record
MS=ms36507089
v=spf1 include:spf.protection.outlook.com include:_custspf.one.com -all

✉️ SPF

Policy	Record (jfost.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:_custspf.one.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)

🔐 DNSSEC343ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081401
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

205ms

A

201ms

MX

229ms

AAAA

221ms

TXT

400ms

CAA

170ms

HTTPS

233ms

TLSA

667ms

SOA

0ms

MTA-STS

238ms

DNSSEC

343ms

SRV

285ms

Total

2544ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-15 12:46:10	2544ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-20 18:47:36	5547ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-17 11:55:26	1009ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-11 07:03:19	4053ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-08 16:44:13	1499ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 22:26:00	1311ms	2 NS 1 A 1 MX	🔒 Secure	View