usu.dk

📜 Historical scan 2026-10-01 21:12:17  ·  ← 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   46ms
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   54ms
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   262ms
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#

61ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset

🏷️ SOA#

45ms
FieldValue
Serial2026075674
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
46ms
A
49ms
MX
54ms
AAAA
68ms
TXT
262ms
CAA
50ms
HTTPS
53ms
TLSA
3496ms
SOA
45ms
MTA-STS
81ms
DNSSEC
61ms
SRV
2138ms
Total
5994ms

🕐 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 3359ms 2 NS 0 A 2 MX 🔒 Secure
2026-10-01 21:12:17 shown 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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