usu.dk

📜 Historical scan 2026-10-09 08:28:22  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

usu.dk is a .dk domain served by 2 nameservers (ns1.desec.io, ns2.desec.org). It was registered on 23 September 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by aspmx1.migadu.com, aspmx2.migadu.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   739ms
NameserverIP addressesPTRASN / ISP
ns1.desec.io 2607:f740:e633:deec::2
45.54.76.1		 ns1.desec.io
ns1.desec.io		 AS63911 NetActuate, Inc
AS63911 NetActuate, Inc
ns2.desec.org 157.53.224.1
2607:f740:e00a:deec::2		 ns2.desec.org
ns2.desec.org		 AS36217 NetActuate, Inc
AS36217 NetActuate, Inc

🌍 A Records#

🌍
No A records found

📧 MX Records#

2 records   499ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s aspmx1.migadu.com 135.125.171.180
135.125.222.87
2001:41d0:303:648a::1
2001:41d0:700:19b4::1
2001:41d0:700:1a57::1
51.38.57.138		 ns3160119.ip-135-125-171.eu
ns3160230.ip-135-125-222.eu
—
—
—
mizu0.migadu.com		 AS16276 OVH SAS
AS16276 OVH SAS
AS16276 OVH SAS
AS16276 OVH SAS
AS16276 OVH SAS
AS16276 OVH SAS
20 3600s aspmx2.migadu.com 135.125.171.180
135.125.222.87
2001:41d0:303:648a::1
2001:41d0:700:19b4::1
2001:41d0:700:1a57::1
51.38.57.138		 ns3160119.ip-135-125-171.eu
ns3160230.ip-135-125-222.eu
—
—
—
mizu0.migadu.com		 AS16276 OVH SAS
AS16276 OVH SAS
AS16276 OVH SAS
AS16276 OVH SAS
AS16276 OVH SAS
AS16276 OVH SAS

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔶 Autoconfigautoconfig.migadu.com → 141.94.97.141

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records   1380ms
TXT Record
hosted-email-verify=ctynwcom
v=spf1 include:spf.migadu.com -all

✉️ SPF#

PolicyRecord (usu.dk)
-all (hard fail) v=spf1 include:spf.migadu.com -all

📨 DMARC#

PolicyRecord (_dmarc.usu.dk)
p=quarantine v=DMARC1; p=quarantine;

📬 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 2026-10-24 03:43:14
wwwExists, no address
www vs bare domainNeither resolves
usu.dk: no address
www.usu.dk: no address
WildcardNo
Denial of existenceNSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 2 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 5/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

1148ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset

🏷️ SOA#

154ms
FieldValue
Serial2026075675
Primary NS (MNAME)get.desec.io
Responsible (RNAME)get@desec.io
Refresh86400s
Retry3600s
Expire2419200s
Minimum (neg-cache TTL)3600s

📋 Registration#

WHOIS fetched 2026-10-24 04:04:44
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2024-09-23
Expires2027-09-22 (330d)

🔗 Same registrant#

8 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).

DomainRegistrar
brug.dkPunktum dk A/S (direct)
nip.dkPunktum dk A/S (direct)
nstr.dkPunktum dk A/S (direct)
pve.dkPunktum dk A/S (direct)
sarup.dkPunktum dk A/S (direct)
skal.dkPunktum dk A/S (direct)
xio.dkPunktum dk A/S (direct)
åå.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
739ms
A
827ms
MX
499ms
AAAA
959ms
TXT
1380ms
CAA
983ms
HTTPS
917ms
TLSA
227ms
SOA
154ms
MTA-STS
999ms
DNSSEC
1148ms
SRV
1053ms
Total
3359ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-24 03:43:14 1292ms 2 NS 0 A 2 MX 🔒 Secure
2026-10-15 23:39:23 839ms 2 NS 0 A 2 MX 🔒 Secure
2026-10-09 08:28:22 shown 3359ms 2 NS 0 A 2 MX 🔒 Secure
2026-10-01 21:12:17 5994ms 2 NS 0 A 2 MX 🔒 Secure
2026-09-24 19:43:40 961ms 2 NS 0 A 2 MX 🔒 Secure
2026-09-22 07:54:30 2005ms 2 NS 0 A 2 MX 🔒 Secure
2026-09-15 08:55:57 1369ms 2 NS 0 A 2 MX 🔒 Secure
2026-09-04 06:29:31 1614ms 2 NS 0 A 2 MX 🔒 Secure
2026-08-28 02:17:09 947ms 2 NS 0 A 2 MX 🔒 Secure
2026-08-21 02:59:44 1479ms 2 NS 0 A 2 MX 🔒 Secure
2026-08-14 18:00:44 3974ms 2 NS 0 A 2 MX 🔒 Secure
2026-08-07 19:16:22 1284ms 2 NS 0 A 2 MX 🔒 Secure
2026-08-06 01:56:46 1367ms 2 NS 0 A 2 MX 🔒 Secure
2026-07-23 13:11:44 817ms 2 NS 0 A 0 MX 🔒 Secure
2026-07-17 14:50:54 814ms 2 NS 0 A 0 MX 🔒 Secure
2026-07-12 06:40:06 8581ms 2 NS 0 A 0 MX 🔒 Secure
2026-07-03 19:59:32 1620ms 2 NS 0 A 0 MX 🔒 Secure
2026-07-02 11:11:27 9447ms 2 NS 0 A 0 MX 🔒 Secure
2026-06-27 10:29:00 406ms 2 NS 0 A 0 MX 🔒 Secure
2026-06-24 21:23:41 490ms 2 NS 0 A 0 MX 🔒 Secure
2026-06-17 12:59:32 4768ms 2 NS 0 A 0 MX 🔒 Secure
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