cio2.dk

📜 Historical scan 2026-06-23 07:34:10  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cio2.dk is a .dk domain served by 4 nameservers (ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and 1 more). It was registered on 3 August 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 80.92.65.215 is hosted by Datacenter Luxembourg S.A. (AS24611) in Luxembourg. Mail is handled by .. The zone is DNSSEC-signed and validates, 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#

4 records   221ms

🌍 A Records#

1 records   178ms

📧 MX Records#

1 records   167ms
PriorityTTLMail ServerIP addressesPTRASN
0 3600s .  Null MX — domain accepts no email (RFC 7505)

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   473ms
TXT Record
v=spf1 -all

✉️ SPF#

PolicyRecord (cio2.dk)
-all (hard fail) v=spf1 -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 2026-10-18 18:06:28
www80.92.65.215 (AS24611) (address records, no CNAME)
www vs bare domainSame network
cio2.dk: 80.92.65.215 (AS24611)
www.cio2.dk: 80.92.65.215 (AS24611)
WildcardNo
Denial of existenceCompact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

233ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

177ms
FieldValue
Serial2026041611
Primary NS (MNAME)ns1.eurodns.com
Responsible (RNAME)hostmaster@eurodns.com
Refresh43200s
Retry7200s
Expire1209600s
Minimum (neg-cache TTL)86400s

📋 Registration#

WHOIS fetched 2026-10-17 17:28:49
FieldValue
RegistrarEurodns S.A
Registered2021-08-03
Expires2027-08-31 (314d)

🔗 Same registrant#

30 domains
📋 WHOIS#

⏱️ Lookup Timing#

NS
221ms
A
178ms
MX
167ms
AAAA
208ms
TXT
473ms
CAA
201ms
HTTPS
168ms
TLSA
58ms
SOA
177ms
MTA-STS
168ms
DNSSEC
233ms
SRV
207ms
Total
943ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-18 18:06:28 1246ms 4 NS 1 A 1 MX 🔒 Secure
2026-10-17 16:59:11 506ms 4 NS 1 A 1 MX 🔒 Secure
2026-09-30 05:36:50 664ms 4 NS 1 A 1 MX 🔒 Secure
2026-09-29 05:26:42 669ms 4 NS 1 A 1 MX 🔒 Secure
2026-09-27 04:53:34 694ms 4 NS 1 A 1 MX 🔒 Secure
2026-09-11 09:25:26 670ms 4 NS 1 A 1 MX 🔒 Secure
2026-09-03 22:13:05 502ms 4 NS 1 A 1 MX 🔒 Secure
2026-08-24 10:10:48 1963ms 4 NS 1 A 1 MX 🔒 Secure
2026-08-23 06:51:19 4868ms 4 NS 1 A 1 MX 🔒 Secure
2026-08-06 09:28:09 1130ms 4 NS 1 A 1 MX 🔒 Secure
2026-07-18 07:35:02 998ms 4 NS 1 A 1 MX 🔒 Secure
2026-07-17 01:46:50 734ms 4 NS 1 A 1 MX 🔒 Secure
2026-07-08 21:22:59 8563ms 4 NS 1 A 1 MX 🔒 Secure
2026-07-01 22:46:47 706ms 4 NS 1 A 1 MX 🔒 Secure
2026-06-27 22:15:53 815ms 4 NS 1 A 1 MX 🔒 Secure
2026-06-26 17:24:35 819ms 4 NS 1 A 1 MX 🔒 Secure
2026-06-23 07:34:10 shown 943ms 4 NS 1 A 1 MX 🔒 Secure
2026-06-22 18:54:00 1152ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-20 06:10:19 1996ms 4 NS 1 A 1 MX 🔒 Secure
2026-06-20 00:57:31 501ms 4 NS 1 A 1 MX 🔒 Secure
2026-06-16 20:50:38 402ms 4 NS 1 A 0 MX 🔒 Secure
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