4sc.dk

Records from scan: 2026-09-30 09:40:33 · 681ms total · last checked 2026-10-16 10:32 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

4sc.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.57 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by 4sc-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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 33ms

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 31ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.57	3600s	webcluster2.webpod15-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	4sc-dk.mail.protection.outlook.com	2a01:111:f403:ca04::f 2a01:111:f403:ca38::8 2a01:111:f403:ca48::10 2a01:111:f403:ca48::a 52.101.181.153 52.101.73.120 52.101.73.126 52.101.91.156	mail-db7pr03cu00507.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-miypr05cu00100.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-am7pr02cu00300.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-maspr04cu00104.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

🔷 AAAA Records (IPv6)#

1 records 52ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10e:80ce:7d38:1678:3c4e	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 158ms

TXT Record
MS=ms18366375
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

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

checked 2026-10-11 03:30:22

www	46.30.215.57 2a02:2350:5:10e:80ce:7d38:1678:3c4e (AS51468) (address records, no CNAME)
www vs bare domain	Same network 4sc.dk: 46.30.215.57 2a02:2350:5:10e:80ce:7d38:1678:3c4e (AS51468) www.4sc.dk: 46.30.215.57 2a02:2350:5:10e:80ce:7d38:1678:3c4e (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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

60ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026092101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

33ms

31ms

34ms

AAAA

52ms

TXT

158ms

CAA

60ms

HTTPS

39ms

TLSA

179ms

SOA

0ms

MTA-STS

60ms

DNSSEC

60ms

SRV

59ms

Total

681ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 09:40:33 shown	681ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 19:23:41	1044ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 02:28:11	1567ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 02:50:32	16720ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-22 00:41:12	5237ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-16 19:06:33	1948ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-22 10:00:51	3824ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-29 04:38:25	728ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 00:40:34	1264ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 16:18:41	743ms	2 NS 1 A 1 MX	⚠️ Bogus
2026-06-16 13:14:38	697ms	2 NS 1 A 1 MX	🔒 Secure