ju.dk DNS records

🖥️ Nameservers3 records 36ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.efif.dk	195.254.168.23	ns.efif.dk	AS51073 Aarhus Business College
ns2.efif.dk	195.254.168.12	ns2.efif.dk	AS51073 Aarhus Business College
ns3.efif.dk	20.23.170.35	—	AS8075 Microsoft Corporation

🌍 A Records1 records 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
52.232.87.92	300s	—	AS8075	Microsoft Corporation	52.224.0.0/11	🇳🇱 The Netherlands	Amsterdam

📧 MX Records1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	ju-dk.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::5 2a01:111:f403:ca04::f 2a01:111:f403:ca09::f 52.101.68.0 52.101.68.16 52.101.68.21 52.101.68.27	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db7pr03cu00503.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)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 74ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records3 records 244ms

TXT Record
Jordbrugets Uddannelsescenter
MS=ms73887563
v=spf1 include:spf.protection.outlook.com include:amazonses.com include:_spf.illumi.dk include:spf.mcb.dk ip4:13.93.34.87 -all

✉️ SPF

Policy	Record (ju.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:amazonses.com include:_spf.illumi.dk include:spf.mcb.dk ip4:13.93.34.87 -all

📨 DMARC

Policy	Record (_dmarc.ju.dk)
p=reject	v=DMARC1; p=reject; pct=100; ruf=mailto:analyze@ju.dk; rua=mailto:64e88d13a948b@dmarc.centerasecurity.com

📬 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)

🔐 DNSSEC113ms

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

🏷️ SOA0ms

Field	Value
Serial	2016011617
Primary NS (MNAME)	ns.efif.dk
Responsible (RNAME)	dns-zc@efif.dk
Refresh	14400s
Retry	3600s
Expire	2419200s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

36ms

A

42ms

MX

35ms

AAAA

33ms

TXT

244ms

CAA

45ms

HTTPS

36ms

TLSA

365ms

SOA

0ms

MTA-STS

61ms

DNSSEC

113ms

SRV

74ms

Total

989ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-29 21:39:47	989ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-28 02:48:51	844ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 01:55:46	1587ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-24 18:06:35	16566ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-23 17:39:48	5056ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-21 17:10:45	7635ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-19 11:20:03	2032ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-18 11:17:01	2821ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-15 19:49:41	3266ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-12 18:47:32	8305ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-11 10:32:00	5914ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-10 02:54:34	7053ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-08 18:36:41	18257ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-27 01:18:55	1113ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-26 00:49:41	17464ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-24 00:37:52	4111ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-21 12:10:24	2414ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-19 10:19:28	3509ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-17 02:24:15	25036ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-15 12:46:43	1013ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-13 07:19:06	1264ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-11 10:53:00	2580ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-09 03:57:36	1386ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-07 05:45:22	2101ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-04 22:47:52	3511ms	3 NS 1 A 1 MX	🔒 Secure	View