cio2.dk

📜 Historical scan 2026-06-27 22:15:53  ·  ← 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   47ms

🌍 A Records#

1 records   52ms

📧 MX Records#

1 records   100ms
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   300ms
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#

73ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

61ms
FieldValue
Serial2026041612
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
47ms
A
52ms
MX
100ms
AAAA
50ms
TXT
300ms
CAA
77ms
HTTPS
61ms
TLSA
81ms
SOA
61ms
MTA-STS
68ms
DNSSEC
73ms
SRV
90ms
Total
815ms

🕐 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 shown 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 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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