yoobookit.dk
Last scanned: 2026-08-27 11:38:17  ·  728ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   40ms
NameserverIP addressesPTRASN / ISP
ns1.curanet.dk 185.25.141.12
2a02:2339:4006:108::123		 ns1.curanet.dk
ns1.curanet.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.curanet.dk 2a02:2339:1:10f::123:123
91.197.248.75		 ns2.curanet.dk
ns2.curanet.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
🌍 A Records1 records   36ms
IPTTLPTRASNISP / OrgCIDRCountryCity
136.144.172.216 3600s 136-144-172-216.colo.transip.net AS20857 Signet B.V. 136.144.128.0/17 🇳🇱 The Netherlands Amsterdam
📧 MX Records2 records   39ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx1.onlinemail.io 185.21.42.12 mx1.onlinemail.io AS48854 team.blue Denmark A/S
20 3600s mx2.onlinemail.io 46.36.208.16 mx2.onlinemail.io AS48854 team.blue Denmark A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoverautodiscover-mf.onlinemail.io → 185.21.40.62
🔶 Autoconfigautoconfig-mf.onlinemail.io → 185.21.40.62
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records3 records   146ms
TXT Record
brevo-code:094805fe592e3cff44f5282261b7623b
google-site-verification=OaVacifYpfNA2-2DcSZcQb2JZ2wVlpfLQSQbEypxIkI
v=spf1 include:spf.onlinemail.io -all
✉️ SPF
PolicyRecord (yoobookit.dk)
-all (hard fail) v=spf1 include:spf.onlinemail.io -all
📨 DMARC
PolicyRecord (_dmarc.yoobookit.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com
📬 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
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC90ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026022702
Primary NS (MNAME)ns1.curanet.dk
Responsible (RNAME)hostmaster@curanet.dk
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)300s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
40ms
A
36ms
MX
39ms
AAAA
43ms
TXT
146ms
CAA
33ms
HTTPS
37ms
TLSA
88ms
SOA
0ms
MTA-STS
69ms
DNSSEC
90ms
SRV
65ms
Total
728ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 11:38:17 728ms 2 NS 1 A 2 MX 🔒 Secure View
2026-08-26 14:07:05 1089ms 2 NS 1 A 2 MX 🔒 Secure View
2026-07-02 16:10:53 600ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-22 03:46:08 569ms 2 NS 1 A 2 MX 🔒 Secure View
2026-06-18 00:02:10 650ms 2 NS 1 A 2 MX 🔒 Secure View
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