sdbf.dk DNS records

🖥️ Nameservers2 records 28ms

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 27ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.19.134.34	3600s	—	AS199374	Syddansk Erhvervsskole Odense-Vejle	185.19.132.0/22	🇩🇰 Denmark	Odense

📧 MX Records1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	sdbf-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::4 2a01:111:f403:ca04::7 2a01:111:f403:ca48::8 52.101.68.0 52.101.68.10 52.101.73.15 52.101.73.153	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-db4pr02cu00307.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as8pr05cu00401.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	185.19.134.34
🔶 Autoconfig	185.19.134.34

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 48ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	mail.esis.dk

📝 TXT Records7 records 154ms

TXT Record
_globalsign-domain-verification=khwKhBs3zWFzYlT-HMOiGs_pIXPMXr146MMp_ZlGHJ
_globalsign-domain-verification=P5KNadZ1QqmxC3TJAtjJNZPrXs-jA5pVCJ075HvLWJ
_globalsign-domain-verification=r4G-KmupLwLNb62jJHcBcCe560dGIR6uVhXcYJkBcT
_globalsign-domain-verification=Wx2m9pCpTyDcSxTQc4tcqRvq3QLvC9d8TDY9kzzgCJ
_globalsign-domain-verification=ynDGlmZf71LiyXazE7enHUsRmq43IpPW1r-_b4PSxl
uvmid=461401
v=spf1 ip4:185.19.134.5 include:spf.esis.dk -all

✉️ SPF

Policy	Record (sdbf.dk)
-all (hard fail)	v=spf1 ip4:185.19.134.5 include:spf.esis.dk -all

📨 DMARC

Policy	Record (_dmarc.sdbf.dk)
p=reject	v=DMARC1;p=reject;sp=reject;rua=mailto:be7762a8bd@rua.easydmarc.eu;ruf=mailto:be7762a8bd@ruf.easydmarc.eu;fo=1

📬 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)

🔐 DNSSEC97ms

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

🏷️ SOA0ms

Field	Value
Serial	2020051934
Primary NS (MNAME)	ns1.esis.dk
Responsible (RNAME)	hostmaster
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

28ms

A

27ms

MX

35ms

AAAA

31ms

TXT

154ms

CAA

28ms

HTTPS

27ms

TLSA

357ms

SOA

0ms

MTA-STS

54ms

DNSSEC

97ms

SRV

48ms

Total

898ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 11:42:25	898ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-28 05:12:36	892ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 04:00:09	1440ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-25 14:24:32	2785ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-24 14:12:56	2805ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-23 07:19:10	4435ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-22 07:10:05	1926ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-19 02:32:36	3627ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-17 21:13:48	5055ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-15 13:33:36	2686ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-12 21:56:17	5017ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-10 15:52:19	3287ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-05 05:38:03	1921ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-31 02:12:43	1112ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-27 18:17:32	1728ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-25 17:21:51	2974ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-23 14:31:12	1237ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-22 07:04:15	1122ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-19 02:24:20	1181ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-16 23:24:02	1146ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-15 01:46:26	1060ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-11 03:11:53	3311ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-08 12:52:43	17907ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-06 00:25:42	1087ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-04 22:45:14	1668ms	2 NS 1 A 1 MX	🔒 Secure	View