4wolff.dk

📜 Historical scan 2026-06-16 12:59:45 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

4wolff.dk is a .dk domain served by 2 nameservers (ns1.yayhosting.dk, ns2.yayhosting.dk). It was registered on 18 November 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.242.130.52 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by 4wolff.dk. The zone is DNSSEC-signed and validates, has no 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 227ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.yayhosting.dk	—	—	—
ns2.yayhosting.dk	—	—	—

🌍 A Records#

1 records 211ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.242.130.52	—	whm02.yayhosting.dk	AS62121	Christian Ebsen ApS	195.242.130.0/23	🇩🇰 Denmark	—

📧 MX Records#

1 records 197ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	4wolff.dk	195.242.130.52	whm02.yayhosting.dk	AS62121 Christian Ebsen ApS

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 586ms

TXT Record
v=spf1 ip4:195.242.130.52 include:_spf.yayhosting.dk -all

✉️ SPF#

Policy	Record (4wolff.dk)
-all (hard fail)	v=spf1 ip4:195.242.130.52 include:_spf.yayhosting.dk -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 2026-10-13 08:18:50

www CNAME	4wolff.dk (all on 4wolff.dk) → 195.242.130.52 (AS62121)
www vs bare domain	Same network 4wolff.dk: 195.242.130.52 (AS62121) www.4wolff.dk: 195.242.130.52 (AS62121)
Wildcard	No
Denial of existence	NSEC3 · 7 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

371ms

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

🏷️ SOA#

211ms

Field	Value
Serial	2026041801
Primary NS (MNAME)	ns1.yayhosting.dk
Responsible (RNAME)	hostmaster@mailrelay.e-studio.dk
Refresh	3600s
Retry	1800s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-12 08:10:01

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2003-11-18
Expires	2026-11-30 (44d)

🔗 Same registrant#

2 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
baadeleje.dk	Punktum dk A/S (direct)
klintebjerggalleri.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

227ms

211ms

197ms

AAAA

202ms

TXT

586ms

CAA

213ms

HTTPS

201ms

TLSA

170ms

SOA

211ms

MTA-STS

329ms

DNSSEC

371ms

SRV

0ms

Total

1639ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-24 12:35:11	520ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 22:10:10	585ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-20 02:31:52	3992ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-16 17:42:24	1228ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 05:40:23	726ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 07:42:14	1911ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 12:59:45 shown	1639ms	2 NS 1 A 1 MX	🔒 Secure