4ap.dk

📜 Historical scan 2026-06-27 16:39:50 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

4ap.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 6 December 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 78.46.5.136 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by 4ap-dk.mail.protection.outlook.com. 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 155ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10	ns01.one.com	AS197495 One.com A/S
ns02.one.com	—	—	—

🌍 A Records#

1 records 148ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
78.46.5.136	43200s	—	AS24940	Hetzner Online GmbH	78.46.0.0/15	🇩🇪 Germany	Nuremberg

📧 MX Records#

1 records 216ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	4ap-dk.mail.protection.outlook.com	2a01:111:f403:ca04::e 2a01:111:f403:ca09::5 2a01:111:f403:ca09::d 2a01:111:f403:ca09::f 52.101.68.21 52.101.68.25 52.101.68.39 52.101.73.8	mail-db8pr02cu00106.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am0pr04cu00500.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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 728ms

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

📝 TXT Records#

2 records 366ms

TXT Record
MS=ms96963261
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.4ap.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@4ap.dk; ruf=mailto:dmarc@4ap.dk; pct=100; fo=1

📬 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 2026-10-14 01:33:56

www	78.46.5.136 (AS24940) (address records, no CNAME)
www vs bare domain	Same network 4ap.dk: 78.46.5.136 (AS24940) www.4ap.dk: 78.46.5.136 (AS24940)
Wildcard	No

✍️ DKIM keys#

3 found

Selector	CNAME	Key
s1	s1.domainkey.u55611873.wl124.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u55611873.wl124.sendgrid.net	RSA · ~2048 bit
selector1	selector1-4ap-dk._domainkey.4ap.onmicrosoft.com	RSA · ~1024 bit below 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#

285ms

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

🏷️ SOA#

239ms

Field	Value
Serial	2026032401
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 2026-10-06 12:09:13

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2000-12-06
Expires	2026-12-31 (75d)

📋 WHOIS#

⏱️ Lookup Timing#

155ms

148ms

216ms

AAAA

220ms

TXT

366ms

CAA

235ms

HTTPS

272ms

TLSA

691ms

SOA

239ms

MTA-STS

180ms

DNSSEC

285ms

SRV

728ms

Total

2234ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 01:33:56	1391ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-12 23:38:21	1004ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-11 22:41:07	1214ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-07 17:30:34	1243ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-06 22:42:55	3937ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-02 21:35:20	1293ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-30 21:25:49	1124ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-30 00:24:50	791ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-27 17:56:14	1165ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-01 15:32:47	6805ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-19 14:39:40	7262ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-16 17:17:19	4102ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-15 07:10:32	1518ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-13 22:47:00	5357ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-01 06:10:38	5303ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-27 16:39:50 shown	2234ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 02:59:18	1135ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 21:48:56	1991ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 21:19:50	984ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 19:04:47	1267ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 12:44:57	1708ms	2 NS 1 A 1 MX	🔒 Secure