itsup.dk

📜 Historical scan 2026-06-24 06:23:27  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

itsup.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 14 December 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.104.3.9 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by mail.itsup.dk. The zone is of unknown DNSSEC status, 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   35ms
NameserverIP addressesPTRASN / 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   34ms
IPTTLPTRASNISP / OrgCIDRCountryCity
87.104.3.9 3600s 87.104.3.9.static.fibianet.dk AS44869 FIBIA P/S 87.104.0.0/18 🇩🇰 Denmark Sakskøbing

📧 MX Records#

1 records   42ms
PriorityTTLMail ServerIP addressesPTRASN
0 3600s mail.itsup.dk 87.104.3.9 87.104.3.9.static.fibianet.dk AS44869 FIBIA P/S

🔷 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#

PolicyRecord (_dmarc.itsup.dk)
p=reject v=DMARC1; p=reject; rua=mailto:admin@itsup.dk; ruf=mailto:admin@itsup.dk; adkim=s; aspf=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 2026-10-11 10:21:02
www87.104.3.9 (AS44869) (address records, no CNAME)
www vs bare domainSame network
itsup.dk: 87.104.3.9 (AS44869)
www.itsup.dk: 87.104.3.9 (AS44869)
WildcardNo
Denial of existenceNSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
dkim — 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.

🔗 TLSA / DANE#

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

🔐 DNSSEC#

127ms
CheckResult
Validation Status❓ Unknown
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsbroken trust chain resolving 'itsup.dk/DS/IN': 127.0.0.1#53

🏷️ SOA#

50ms
FieldValue
Serial2026062320
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-08-30 19:51:54
FieldValue
RegistrarONE.COM A/S
Registered2004-12-14
Expires2026-12-31 (71d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
35ms
A
34ms
MX
42ms
AAAA
84ms
TXT
269ms
CAA
34ms
HTTPS
106ms
TLSA
305ms
SOA
50ms
MTA-STS
37ms
DNSSEC
127ms
SRV
129ms
Total
893ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-01 03:14:01 743ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-30 03:08:34 364ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-25 21:47:38 560ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-07 00:42:43 1156ms 2 NS 1 A 1 MX 🔒 Secure
2026-08-30 19:51:23 2838ms 2 NS 1 A 1 MX 🔒 Secure
2026-08-26 18:05:39 683ms 2 NS 1 A 1 MX 🔒 Secure
2026-08-22 18:46:52 830ms 2 NS 1 A 1 MX 🔒 Secure
2026-07-31 15:13:02 2480ms 2 NS 1 A 1 MX 🔒 Secure
2026-07-01 04:22:23 712ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-30 10:53:11 677ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-24 06:23:27 shown 893ms 2 NS 1 A 1 MX ❓ Unknown
2026-06-23 09:05:18 874ms 3 NS 1 A 1 MX 🔓 Insecure
2026-06-20 07:46:13 871ms 3 NS 1 A 1 MX 🔓 Insecure
2026-06-18 00:15:04 765ms 3 NS 1 A 1 MX 🔓 Insecure
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