zba.dk

📜 Historical scan 2026-10-08 23:21:32 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

zba.dk is a .dk domain served by 3 nameservers (ns.efif.dk, ns2.efif.dk, ns3.efif.dk). It was registered on 16 February 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.254.168.52 is hosted by Aarhus Business College (AS51073) in Denmark. Mail is handled by zba-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 280ms

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 Records#

1 records 440ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.254.168.52	86400s	cphbusiness.dk ek.dk keanet.dk kompetence.kea.dk redirect.efif.dk	AS51073	Aarhus Business College	195.254.168.0/23	🇩🇰 Denmark	Aarhus

📧 MX Records#

1 records 422ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	zba-dk.mail.protection.outlook.com	2a01:111:f403:c967::c 2a01:111:f403:ca09::24 2a01:111:f403:ca48::c 2a01:111:f403:ca48::e 52.101.103.162 52.101.209.31 52.101.68.10 52.101.68.15	mail-cpjpr05cu00204.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-miypr03cu00206.inbound.protection.outlook.com mail-miypr03cu00202.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db6pr03cu00107.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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 491ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	webmail.efif.dk

📝 TXT Records#

4 records 1018ms

TXT Record
l3uz0UJ6Dd7YrFtnckgRpdQ7hrXuFu2DurDIkaPw59lc4w3cQB+C1dJYTZDuaDj5womjNPT6viZ2SIuKFY7IFQ==
MS=ms55818073
v=spf1 redirect=_spf.efif.dk
Zealand Business College

✉️ SPF#

Policy	Record (zba.dk)
redirect=_spf.efif.dk	v=spf1 redirect=_spf.efif.dk

📨 DMARC#

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-16 16:04:13

www CNAME	redirect.efif.dk (all on efif.dk) → 195.254.168.52 (AS51073)
www vs bare domain	Same network zba.dk: 195.254.168.52 (AS51073) www.zba.dk: 195.254.168.52 (AS51073)
Wildcard	No
Denial of existence	NSEC3 · 50 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-zba-dk._domainkey.efif.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-zba-dk._domainkey.efif.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

632ms

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

🏷️ SOA#

103ms

Field	Value
Serial	2010071948
Primary NS (MNAME)	ns.efif.dk
Responsible (RNAME)	dns-zc@efif.dk
Refresh	14400s
Retry	3600s
Expire	2419200s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-07 23:24:11

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2010-02-16
Expires	2027-02-28 (134d)

📋 WHOIS#

⏱️ Lookup Timing#

280ms

440ms

422ms

AAAA

197ms

TXT

1018ms

CAA

448ms

HTTPS

302ms

TLSA

1002ms

SOA

103ms

MTA-STS

473ms

DNSSEC

632ms

SRV

491ms

Total

3878ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 16:04:13	1334ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-14 09:38:53	1258ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-08 23:21:32 shown	3878ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-07 23:19:34	3219ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-02 21:34:57	1426ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-30 21:30:31	1045ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-29 15:34:24	1856ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-29 09:40:04	3031ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-27 08:50:19	2641ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-23 07:18:00	7006ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-16 06:29:35	2820ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-14 03:59:53	1583ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-07 03:11:00	1042ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-30 22:47:55	850ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-27 01:50:06	1019ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-24 20:43:35	5432ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-19 17:05:51	3799ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-18 16:54:33	3602ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-13 07:51:35	4807ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-10 21:05:50	5555ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-07 06:35:11	3861ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-29 12:19:02	7361ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-27 02:06:14	2990ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-24 00:27:42	10706ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-21 19:38:42	10126ms	3 NS 1 A 1 MX	🔒 Secure