tycho2022.dk DNS records

🖥️ Nameservers3 records 114ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.sdu.dk	130.225.155.136	ns1.sdu.dk	AS1835 IDDQD-AS
ns2.sdu.dk	130.225.155.148	ns2.sdu.dk	AS1835 IDDQD-AS
ns3.sdu.dk	193.163.227.4	ns3.sdu.dk	AS44328 Region Syddanmark

🌍 A Records1 records 125ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
130.225.156.23	28800s	—	AS1835	IDDQD-AS	130.225.0.0/16	🇩🇰 Denmark	—

📧 MX Records1 records 111ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	28800s	. Null MX — domain accepts no email (RFC 7505)

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 450ms

TXT Record
v=spf1 -all

✉️ SPF

Policy	Record (tycho2022.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC

Policy	Record (_dmarc.tycho2022.dk)
p=reject	v=DMARC1; p=reject; sp=reject; rua=mailto:655b353a1f136@dmarc.centerasecurity.com; ruf=mailto:dmarc.reports@sdu.dk

📬 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

🔗 TLSA / DANE

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

🔐 DNSSEC378ms

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

🏷️ SOA0ms

Field	Value
Serial	10521
Primary NS (MNAME)	ns1.sdu.dk
Responsible (RNAME)	dns@sdu.dk
Refresh	10800s
Retry	1080s
Expire	2419200s
Minimum (neg-cache TTL)	900s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

114ms

A

125ms

MX

111ms

AAAA

161ms

TXT

450ms

CAA

93ms

HTTPS

16149ms

TLSA

242ms

SOA

0ms

MTA-STS

306ms

DNSSEC

378ms

SRV

198ms

Total

17817ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 06:21:38	17817ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 11:29:43	16752ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-24 15:30:52	4288ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-22 13:43:14	6874ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-18 08:09:15	5473ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-14 22:26:48	4479ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-11 01:06:51	4990ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-08 02:43:39	4507ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-03 02:02:51	19460ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-27 02:50:46	4461ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-24 01:55:37	8589ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-21 10:38:48	8418ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-17 21:25:12	8214ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-16 20:37:58	8519ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-15 12:25:27	8676ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-09 01:44:49	10679ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-06 20:17:18	9206ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-01 22:19:35	4398ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 07:18:38	4512ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 00:27:29	4444ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 20:43:44	2409ms	3 NS 1 A 0 MX	🔒 Secure	View