fiu.dk

📜 Historical scan 2026-07-08 11:00:39 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fiu.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 12 February 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 81.7.170.141 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by mx12.electric.net, mx6.electric.net. 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#

2 records 50ms

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 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
81.7.170.141	600s	—	AS47292	Sentia Denmark A/S	81.7.168.0/22	🇩🇰 Denmark	—

📧 MX Records#

2 records 56ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	mx12.electric.net	192.162.219.49 2a01:77c0:1619:4101:d99:c22:fb4d:290e	mx41.electric.net mx10.electric.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
20	600s	mx6.electric.net	192.162.219.49	mx41.electric.net	AS16509 Amazon.com, Inc.

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 303ms

TXT Record
LO's FIU afdeling
MS=ms84245213
v=spf1 ip4:193.28.224.0/24 ip4:81.7.161.0/24 ip4:86.58.180.0/24 include:spf.mailanyone.net include:bounce.peytz.dk include:_spf.anpdm.com include:_smtpcluster.jay.net -all

✉️ SPF#

Policy	Record (fiu.dk)
-all (hard fail)	v=spf1 ip4:193.28.224.0/24 ip4:81.7.161.0/24 ip4:86.58.180.0/24 include:spf.mailanyone.net include:bounce.peytz.dk include:_spf.anpdm.com include:_smtpcluster.jay.net -all

📨 DMARC#

Policy	Record (_dmarc.fiu.dk)
p=none (monitor only)	v=DMARC1; p=none;
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@2cm70nkt.uriports.com; ruf=mailto:dmarc@2cm70nkt.uriports.com; fo=1:d:s

📬 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 2026-10-13 04:51:18

www	195.47.247.18 (AS51468) (address records, no CNAME)
www vs bare domain	Different networks fiu.dk: 81.7.170.141 (AS47292) www.fiu.dk: 195.47.247.18 (AS51468) (all like this)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u40221897.wl148.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u40221897.wl148.sendgrid.net	RSA · ~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: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

139ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026070802
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 07:10:04

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1997-02-12
Expires	2027-03-31 (164d)

📋 WHOIS#

⏱️ Lookup Timing#

50ms

46ms

56ms

AAAA

52ms

TXT

303ms

CAA

42ms

HTTPS

45ms

TLSA

302ms

SOA

0ms

MTA-STS

81ms

DNSSEC

139ms

SRV

135ms

Total

1590ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 04:51:18	1355ms	2 NS 1 A 2 MX	🔒 Secure
2026-10-08 13:44:33	1303ms	2 NS 1 A 2 MX	🔒 Secure
2026-10-07 13:40:04	2617ms	2 NS 1 A 2 MX	🔒 Secure
2026-10-06 06:48:46	2252ms	2 NS 1 A 2 MX	🔒 Secure
2026-10-01 05:52:58	1094ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-24 03:27:01	1138ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-14 19:26:35	2562ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-07 17:29:12	1457ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-25 06:31:11	735ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-12 10:32:31	2821ms	2 NS 1 A 2 MX	🔒 Secure
2026-07-23 08:09:37	5063ms	2 NS 1 A 2 MX	🔒 Secure
2026-07-18 08:11:28	3473ms	2 NS 1 A 2 MX	🔒 Secure
2026-07-16 06:16:03	1048ms	2 NS 1 A 2 MX	🔒 Secure
2026-07-14 06:41:51	1284ms	2 NS 1 A 2 MX	🔒 Secure
2026-07-08 11:00:39 shown	1590ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-23 03:55:08	2259ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-17 10:09:02	2318ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-17 10:08:39	1875ms	2 NS 1 A 2 MX	🔒 Secure