fidu.dk

📜 Historical scan 2026-07-02 18:26:59 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fidu.dk is a .dk domain served by 2 nameservers (ns1.aau.dk, ns2.aau.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 130.225.57.55 is hosted by IDDQD-AS (AS1835) in Denmark. Mail is handled by fidu-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 53ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.aau.dk	130.225.52.5 2001:878:300:1::5	ns1.aau.dk ns1.aau.dk	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education
ns2.aau.dk	130.225.54.5 2001:878:300:100::5	ns2.aau.dk ns2.aau.dk	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education

🌍 A Records#

1 records 52ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
130.225.57.55	3600s	—	AS1835	IDDQD-AS	130.225.0.0/16	🇩🇰 Denmark	—

📧 MX Records#

1 records 45ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
40	3600s	fidu-dk.mail.protection.outlook.com	—	—	—

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 242ms

TXT Record
v=spf1 include:_spfhard.aau.dk -all

✉️ SPF#

Policy	Record (fidu.dk)
-all (hard fail)	v=spf1 include:_spfhard.aau.dk -all

📨 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 2026-10-09 10:28:14

www	130.225.57.55 (AS1835) (address records, no CNAME)
www vs bare domain	Same network fidu.dk: 130.225.57.55 (AS1835) www.fidu.dk: 130.225.57.55 (AS1835)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.fidu.dk	09f6a3a9-8f9c-459f-b9a6-eeb77dbbf6b4.acme.aau.dk
TXT	09f6a3a9-8f9c-459f-b9a6-eeb77dbbf6b4.acme.aau.dk	p_t9EUP6zf5Dt20EubEbHM6DBVxEJ9o1ke02yjzC-IU
TXT	09f6a3a9-8f9c-459f-b9a6-eeb77dbbf6b4.acme.aau.dk	u-u9cyNNkvoIwMN5n8eShKqNdC8pVSOxrG8_cJSgEZY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

2052ms

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

🏷️ SOA#

50ms

Field	Value
Serial	2023083001
Primary NS (MNAME)	ns1.aau.dk
Responsible (RNAME)	hostmaster@its.aau.dk
Refresh	3600s
Retry	900s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

53ms

52ms

45ms

AAAA

50ms

TXT

242ms

CAA

43ms

HTTPS

50ms

TLSA

672ms

SOA

50ms

MTA-STS

70ms

DNSSEC

2052ms

SRV

87ms

Total

3127ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 10:28:14	1005ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-07 23:32:10	960ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-30 21:48:01	849ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-10 03:26:52	5262ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-26 04:39:31	1227ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-23 00:07:27	16690ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-21 22:35:19	61303ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-02 18:26:59 shown	3127ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 10:07:14	681ms	2 NS 1 A 1 MX	🔓 Insecure