4plus.dk

📜 Historical scan 2026-09-25 15:04:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

4plus.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 22 April 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.47.247.18 is hosted by One.com A/S (AS51468). Mail is handled by 4plus-dk.m-v1.mx.microsoft. 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 45ms

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 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.47.247.18	3600s	one.com.webforward.g1i.one	AS51468	One.com A/S	195.47.247.0/24	—	—

📧 MX Records#

1 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	4plus-dk.m-v1.mx.microsoft	2a01:111:f403:ca04::10 2a01:111:f403:ca04::9 2a01:111:f403:ca04::e 2a01:111:f403:ca48::8 52.101.68.21 52.101.68.27 52.101.73.126 52.101.73.155	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-am7pr02cu00203.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 → 40.104.116.56
🔶 Autoconfig	195.47.247.18

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 64ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 188ms

TXT Record
MS=ms27010223
v=spf1 include:spf.protection.outlook.com include:spf.comendosystems.com -all

✉️ SPF#

Policy	Record (4plus.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.comendosystems.com -all

📨 DMARC#

Policy	Record (_dmarc.4plus.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email;

📬 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 2026-10-11 13:11:39

www CNAME	4plus.dk (all on 4plus.dk) → 195.47.247.18 (AS51468)
www vs bare domain	Same network 4plus.dk: 195.47.247.18 (AS51468) www.4plus.dk: 195.47.247.18 (AS51468)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

4 records 76ms

Service / Owner	Type	Cert association
SMTP _25._tcp.4plus-dk.m-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	EA7A25255D111FC3CE4CB8FABE3ADF9C…
SMTP _25._tcp.4plus-dk.m-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	803F7447CC75B208DBCA042346F5D8DF…
SMTP _25._tcp.4plus-dk.m-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	C1AD7778796D20BCA65C889A26550211…
SMTP _25._tcp.4plus-dk.m-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	54883CC5F1849331E6BF5002C3129D20…

🔐 DNSSEC#

67ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026092506
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 2026-10-18 08:40:55

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2014-04-22
Expires	2027-04-30 (193d)

🔗 Same registrant#

28 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
barnetsblaahus.dk	Punktum dk A/S (direct)
bcbj.dk	DANDOMAIN A/S
blaa-kors-pensionat-herning.dk	Punktum dk A/S (direct)
blaakonsulenter.dk	Punktum dk A/S (direct)
blaakors-skannerup.dk	Punktum dk A/S (direct)
blaakors.dk	Punktum dk A/S (direct)
blaakorshumlebaek.dk	Punktum dk A/S (direct)
blaakorspensionatherning.dk	Punktum dk A/S (direct)
blaalinie.dk	Punktum dk A/S (direct)
blaasvale.dk	Punktum dk A/S (direct)
blakors.dk	Punktum dk A/S (direct)
blåkorshumlebæk.dk	Punktum dk A/S (direct)
boelgegaarden.dk	Punktum dk A/S (direct)
bølgegården.dk	Punktum dk A/S (direct)
csyd.dk	Punktum dk A/S (direct)
denblaalinie.dk	Punktum dk A/S (direct)
detblaakraemmerhus.dk	Punktum dk A/S (direct)
detblaasjak.dk	Punktum dk A/S (direct)
detblaasted.dk	Punktum dk A/S (direct)
egåhus.dk	Punktum dk A/S (direct)
hash-stop.dk	Punktum dk A/S (direct)
herberg-nord.dk	DANDOMAIN A/S
ksa-aalborg.dk	DANDOMAIN A/S
regbk.dk	Punktum dk A/S (direct)
rodlos-festival.dk	Punktum dk A/S (direct)
rodlosfestival.dk	Punktum dk A/S (direct)
skannerup-blaakors.dk	Punktum dk A/S (direct)
zero16.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

45ms

43ms

36ms

AAAA

37ms

TXT

188ms

CAA

32ms

HTTPS

34ms

TLSA

76ms

SOA

0ms

MTA-STS

54ms

DNSSEC

67ms

SRV

64ms

Total

705ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 16:07:57	1748ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 15:04:27 shown	705ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-22 12:24:58	1609ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 00:06:30	690ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-02 00:07:07	967ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 13:14:26	852ms	2 NS 1 A 1 MX	🔒 Secure