fjernundervisning.dk DNS records

🖥️ Nameservers2 records 240ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.esis.dk	185.19.134.2	ns1.esis.dk	AS199374 Syddansk Erhvervsskole Odense-Vejle
ns2.esis.dk	185.19.134.3	ns2.esis.dk	AS199374 Syddansk Erhvervsskole Odense-Vejle

🌍 A Records1 records 135ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.32.65.88	3600s	—	AS3292	TDC Holding A/S	193.32.65.0/24	🇩🇰 Denmark	—

📧 MX Records1 records 86ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
100	3600s	mxnonexistent.fjernundervisning.dk	—	—	—

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 427ms

TXT Record
v=spf1 -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.fjernundervisning.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=r; aspf=r

📬 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)

🔐 DNSSEC386ms

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

🏷️ SOA0ms

Field	Value
Serial	2020051784
Primary NS (MNAME)	ns1.esis.dk
Responsible (RNAME)	hostmaster@esis.dk
Refresh	900s
Retry	600s
Expire	86400s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

240ms

A

135ms

MX

86ms

AAAA

204ms

TXT

427ms

CAA

139ms

HTTPS

145ms

TLSA

190ms

SOA

0ms

MTA-STS

240ms

DNSSEC

386ms

SRV

256ms

Total

1579ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 13:06:15	1579ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 13:36:20	530ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-22 18:42:56	2550ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-20 18:21:50	19027ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-15 00:52:15	2129ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-13 21:38:56	1929ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-10 15:12:18	5721ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-06 08:38:51	3100ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-29 13:56:36	581ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-27 17:23:27	3576ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-23 12:42:27	1030ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-19 03:38:58	990ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-13 20:40:05	9492ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-10 06:40:29	16954ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-07 18:07:55	573ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 15:28:21	2428ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-30 14:25:57	489ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 20:59:32	1365ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 06:20:38	656ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 05:57:12	763ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 03:08:07	4477ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 09:18:07	1151ms	2 NS 1 A 1 MX	🔒 Secure	View