zbc.dk DNS records

🖥️ Nameservers3 records 44ms

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 Records2 records 26ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
162.159.140.127	3600s	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	—	—
172.66.0.125	3600s	—	AS13335	Cloudflare, Inc.	172.66.0.0/22	—	—

📧 MX Records1 records 25ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	zbc-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca09::9 2a01:111:f403:ca09::a 2a01:111:f403:ca21::e 52.101.181.156 52.101.68.36 52.101.73.123 52.101.73.155	mail-dbapr03cu00100.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-am7pr02cu00203.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 → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 87ms

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

📝 TXT Records9 records 149ms

TXT Record
\009google-site-verification=fBnb42OC9K6kI2FBFsrvn2NkXDxllCgUFiEHRjlM2W4
airtable-verification=6e8437d0c7f64e563426f1ad99906a26
apple-domain-verification=uTYPJ2fasIm4SKXY
B/S7hW+mtyki79+ciQLOEWqUCBQ+R9mdGz5loDzSRhjHb9fh2Hj69q10eYsZxwgQBH5qGVNH6EicOVk/FLmq7w==
MS=ms23781915
v=spf1 include:spf.protection.outlook.com include:_spf2.efif.dk include:spf.mcb.dk include:mail.techosting.dk include:spf.mandrillapp.com ip4:87.48.131.155 ip4:87.118.68.115 ip4:87.118.68.116 ip4:20.234.154.72 -all
workplace-domain-verification=8gUiWnxu6GsKroDR7HgBQxBoCUWJxC
zbc-website.azurewebsites.net
Zealand Business College

✉️ SPF

Policy	Record (zbc.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:_spf2.efif.dk include:spf.mcb.dk include:mail.techosting.dk include:spf.mandrillapp.com ip4:87.48.131.155 ip4:87.118.68.115 ip4:87.118.68.116 ip4:20.234.154.72 -all

📨 DMARC

Policy	Record (_dmarc.zbc.dk)
p=reject	v=DMARC1; p=reject; pct=100; ruf=mailto:analyze@zbc.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)

🔐 DNSSEC104ms

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

🏷️ SOA0ms

Field	Value
Serial	2010072770
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

44ms

A

26ms

MX

25ms

AAAA

34ms

TXT

149ms

CAA

43ms

HTTPS

41ms

TLSA

1257ms

SOA

0ms

MTA-STS

50ms

DNSSEC

104ms

SRV

87ms

Total

1849ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-04 17:43:15	1849ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-09-01 03:15:29	1058ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-08-30 02:40:40	1809ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-08-28 14:12:57	1923ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-08-26 12:57:57	1315ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-08-24 22:55:52	25524ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-08-22 20:42:30	9190ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-08-20 20:25:27	3584ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-08-19 18:41:29	5772ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-08-18 18:39:58	5473ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-08-17 14:15:40	6311ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-08-15 00:35:10	7026ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-08-13 13:37:36	6914ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-08-10 20:26:29	3673ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-08-08 12:30:45	3537ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-08-06 14:04:04	3112ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-08-02 06:06:27	2673ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-07-27 00:38:16	3650ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-07-26 00:11:32	1895ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-07-24 23:59:45	5966ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-07-23 23:27:45	4735ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-07-22 22:17:43	5786ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-07-21 10:41:20	3575ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-07-19 01:22:52	2805ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-07-18 01:04:58	6417ms	3 NS 2 A 1 MX	🔒 Secure	View