usg.dk

📜 Historical scan 2026-07-12 22:29:06 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

usg.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 26 May 1997 (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 usg-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 32ms

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 34ms

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 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	usg-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca04::9 2a01:111:f403:ca04::b 2a01:111:f403:ca09::20 52.101.68.18 52.101.73.26 52.101.73.30 52.101.73.8	mail-db4pr02cu00307.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com mail-am7pr05cu00306.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	195.47.247.18
🔶 Autoconfig	195.47.247.18

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 184ms

TXT Record
MS=ms42690452
Universitets Studenter Gymnastik
v=spf1 a:smtp.usg.dk a:mail.metalogic.dk ip4:217.115.128.24 ip4:217.115.128.26 ip4:5.175.17.100 ip4:176.28.23.55 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (usg.dk)
-all (hard fail)	v=spf1 a:smtp.usg.dk a:mail.metalogic.dk ip4:217.115.128.24 ip4:217.115.128.26 ip4:5.175.17.100 ip4:176.28.23.55 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.usg.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 16:00:32

www	5.175.17.100 (AS8972) (address records, no CNAME)
www vs bare domain	Different networks usg.dk: 195.47.247.18 (AS51468) www.usg.dk: 5.175.17.100 (AS8972) (all like this)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

57ms

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

🏷️ SOA#

35ms

Field	Value
Serial	2026070901
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 2026-10-08 14:49:44

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1997-05-26
Expires	2027-06-30 (254d)

📋 WHOIS#

⏱️ Lookup Timing#

32ms

34ms

31ms

AAAA

32ms

TXT

184ms

CAA

23ms

HTTPS

31ms

TLSA

656ms

SOA

35ms

MTA-STS

50ms

DNSSEC

57ms

SRV

49ms

Total

5589ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 16:00:32	1267ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 07:55:02	1713ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-09 16:53:24	1391ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-08 02:58:32	1161ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 11:49:09	911ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-24 22:16:11	1399ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-10 01:54:22	10179ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-12 22:29:06 shown	5589ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-09 01:06:12	8839ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-06 03:49:57	1265ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-28 00:25:40	784ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 16:42:01	1175ms	2 NS 1 A 1 MX	🔒 Secure