jfost.dk

📜 Historical scan 2026-07-20 18:47:36 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jfost.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 7 October 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.240.167 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by jfost-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 29ms

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 Records#

1 records 29ms

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 Records#

1 records 29ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	jfost-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::6 2a01:111:f403:ca04::8 2a01:111:f403:ca04::a 52.101.68.12 52.101.73.11 52.101.73.26 52.101.73.4	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 40.104.116.8

🔷 AAAA Records (IPv6)#

1 records 29ms

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 Records#

2 records 152ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-16 17:36:01

www	77.111.240.167 2a02:2350:5:102:803f:bf16:e036:1434 (AS51468) (address records, no CNAME)
www vs bare domain	Same network jfost.dk: 77.111.240.167 2a02:2350:5:102:803f:bf16:e036:1434 (AS51468) www.jfost.dk: 77.111.240.167 2a02:2350:5:102:803f:bf16:e036:1434 (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

50ms

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

🏷️ SOA#

23ms

Field	Value
Serial	2026071501
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-05 06:26:32

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2014-10-07
Expires	2026-10-31 (13d)

📋 WHOIS#

⏱️ Lookup Timing#

29ms

AAAA

29ms

TXT

152ms

CAA

30ms

HTTPS

29ms

TLSA

607ms

SOA

23ms

MTA-STS

39ms

DNSSEC

50ms

SRV

37ms

Total

5547ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 17:36:01	2107ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-07 13:35:47	2755ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-05 06:00:50	1315ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 05:47:26	1203ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-19 05:31:38	1164ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-16 16:20:48	1997ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-04 22:46:04	1234ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-15 12:46:10	2544ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-20 18:47:36 shown	5547ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-17 11:55:26	1009ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-11 07:03:19	4053ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-08 16:44:13	1499ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 22:26:00	1311ms	2 NS 1 A 1 MX	🔒 Secure