college.dk

📜 Historical scan 2026-06-21 05:13:32 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

college.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 17 January 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 212.98.85.155 is hosted by GlobalConnect A/S (AS42525) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. The zone is DNSSEC-signed but currently fails validation, has no 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#

2 records 44ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
212.98.85.155	43200s	—	AS42525	GlobalConnect A/S	212.98.64.0/18	🇩🇰 Denmark	Copenhagen

📧 MX Records#

7 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	aspmx.l.google.com	142.250.147.26 2a00:1450:4010:c1e::1b	rd-in-f26.1e100.net lb-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	43200s	alt1.aspmx.l.google.com	192.178.211.26 2404:6800:4000:1025::1b	lcbomp-in-f26.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	43200s	alt2.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx2.googlemail.com	172.253.158.27 2404:6800:4003:c26::1b	so-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx3.googlemail.com	172.253.158.26 2404:6800:4008:c01::1b	so-in-f26.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx4.googlemail.com	192.178.230.26 2404:6800:4003:c26::1b	yunrtab-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx5.googlemail.com	108.177.125.26 2404:6800:4008:c01::1b	tp-in-f26.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 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 2026-10-12 00:24:25

www	212.98.85.155 (AS42525) (address records, no CNAME)
www vs bare domain	Same network college.dk: 212.98.85.155 (AS42525) www.college.dk: 212.98.85.155 (AS42525)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

90ms

Check	Result
Validation Status	⚠️ Bogus
AD Flag (resolver validates)	✗ Not set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: insecurity proof failed

🏷️ SOA#

38ms

Field	Value
Serial	2026032401
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-06 08:21:44

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2009-01-17
Expires	2035-01-31 (3024d)

📋 WHOIS#

⏱️ Lookup Timing#

44ms

35ms

43ms

AAAA

39ms

TXT

194ms

CAA

44ms

HTTPS

38ms

TLSA

80ms

SOA

38ms

MTA-STS

75ms

DNSSEC

90ms

SRV

85ms

Total

702ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 00:24:25	2460ms	2 NS 1 A 7 MX	🔒 Secure
2026-10-06 13:16:45	1793ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-26 12:07:03	786ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-21 05:33:58	1945ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-06 01:17:37	2881ms	2 NS 1 A 7 MX	🔒 Secure
2026-07-04 23:44:11	2187ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-21 05:13:32 shown	702ms	2 NS 1 A 7 MX	⚠️ Bogus
2026-06-16 21:45:29	824ms	2 NS 1 A 7 MX	🔒 Secure