frsn.dk

📜 Historical scan 2026-07-04 16:20:20 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

frsn.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 16 November 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.98.98.145 is hosted by Cibicom A/S (AS3342) in Denmark. Mail is handled by frsn.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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 179ms

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 238ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.98.98.145	600s	—	AS3342	Cibicom A/S	185.98.96.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 186ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	frsn.dk	185.98.98.145	—	AS3342 Cibicom A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 485ms

TXT Record
v=spf1 mx a

✉️ SPF#

Policy	Record (frsn.dk)
no all — incomplete SPF	v=spf1 mx a

📨 DMARC#

Policy	Record (_dmarc.frsn.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100;

📬 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 2026-10-09 16:30:35

www CNAME	frsn.dk (all on frsn.dk) → 185.98.98.145 (AS3342)
www vs bare domain	Same network frsn.dk: 185.98.98.145 (AS3342) www.frsn.dk: 185.98.98.145 (AS3342)
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: none

warn No "all" and no redirect: mail from unlisted servers gets a neutral result

🔗 TLSA / DANE#

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

🔐 DNSSEC#

390ms

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

🏷️ SOA#

240ms

Field	Value
Serial	2026041201
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 2026-10-09 16:55:51

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-11-16
Expires	2035-11-30 (3331d)

📋 WHOIS#

⏱️ Lookup Timing#

179ms

238ms

186ms

AAAA

215ms

TXT

485ms

CAA

196ms

HTTPS

246ms

TLSA

662ms

SOA

240ms

MTA-STS

308ms

DNSSEC

390ms

SRV

266ms

Total

2517ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 16:30:35	476ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 14:09:01	1739ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-04 16:20:20 shown	2517ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 10:30:22	566ms	2 NS 1 A 1 MX	⚠️ Bogus
2026-06-17 10:26:31	788ms	2 NS 1 A 1 MX	🔒 Secure