erp4students.dk

📜 Historical scan 2026-06-17 08:15:56 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

erp4students.dk is a .dk domain served by 2 nameservers (ns.checkdomain.de, ns2.checkdomain.de). It was registered on 28 June 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 88.99.101.251 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by mx2.erp4students.dk, mx3.erp4students.dk and 1 more. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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#

2 records 16ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.checkdomain.de	—	—	—
ns2.checkdomain.de	—	—	—

🌍 A Records#

1 records 14ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
88.99.101.251	—	redirect.checkdomain.de	AS24940	Hetzner Online GmbH	88.99.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records#

3 records 17ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx2.erp4students.dk	94.130.12.24	mx2.checkdomain.de	AS24940 Hetzner Online GmbH
20	—	mx3.erp4students.dk	54.36.108.26	mx3.checkdomain.de	AS16276 OVH SAS
30	—	mx1.erp4students.dk	88.198.20.145	mx1.checkdomain.de	AS24940 Hetzner Online GmbH

🔷 AAAA Records (IPv6)#

1 records 17ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a01:4f8:221:11cd:9734:4c26:6044:5f33	—	—	AS24940	Hetzner Online GmbH	2a01:4f8:0:0:0:0:0:0/31	🇩🇪 Germany	Falkenstein

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-17 15:59:18

www	88.99.101.251 2a01:4f8:221:11cd:9734:4c26:6044:5f33 (AS24940) (address records, no CNAME)
www vs bare domain	Same network erp4students.dk: 88.99.101.251 2a01:4f8:221:11cd:9734:4c26:6044:5f33 (AS24940) www.erp4students.dk: 88.99.101.251 2a01:4f8:221:11cd:9734:4c26:6044:5f33 (AS24940)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

84ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

23ms

Field	Value
Serial	2019100102
Primary NS (MNAME)	ns.checkdomain.de
Responsible (RNAME)	hostmaster@checkdomain.de
Refresh	40000s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-05 17:58:52

Field	Value
Registrar	InterNetX GmbH
Registered	2009-06-28
Expires	2027-06-30 (255d)

📋 WHOIS#

⏱️ Lookup Timing#

16ms

14ms

17ms

AAAA

17ms

TXT

46ms

CAA

18ms

HTTPS

17ms

TLSA

48ms

SOA

23ms

MTA-STS

17ms

DNSSEC

84ms

SRV

0ms

Total

459ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-06-21 15:51:05	1148ms	2 NS 1 A 3 MX	🔓 Insecure
2026-06-19 19:37:33	3587ms	2 NS 1 A 3 MX	🔓 Insecure
2026-06-17 08:15:56 shown	459ms	2 NS 1 A 3 MX	🔓 Insecure
2026-06-17 08:15:49	1126ms	2 NS 1 A 3 MX	🔓 Insecure