citybo.dk
Last scanned: 2026-06-26 23:39:11  ·  718ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   37ms
NameserverIP addressesPTRASN / ISP
ns01.hosit.dk 193.104.202.31 ns01.hosit.dk AS50346 It Forum Gruppen A/s
ns02.hosit.dk 87.116.23.114 ns02.hosit.dk AS31027 GlobalConnect A/S
ns03.hosit.dk 152.115.55.201 ns04.hosit.dk AS31027 GlobalConnect A/S
ns04.hosit.dk 152.115.55.201 ns04.hosit.dk AS31027 GlobalConnect A/S
🌍 A Records1 records   36ms
IPTTLPTRASNISP / OrgCIDRCountryCity
52.17.45.100 86400s ec2-52-17-45-100.eu-west-1.compute.amazonaws.com AS16509 Amazon.com, Inc. 52.16.0.0/14 🇮🇪 Ireland Dublin
📧 MX Records3 records   37ms
PriorityTTLMail ServerIP addressesPTRASN
10 86400s mx20.check4spam.dk 154.59.193.124
2001:978:2:6::f:124		 fe3-r3-in.du01.l.antispamcloud.com
fe3-r3-in.du01.l.antispamcloud.com		 AS16633 N-able Technologies, Inc.
AS174 Cogent Communications, LLC
10 86400s mx30.check4spam.dk 154.59.104.23
2001:978:2:2c::137:100		 fe2-r3-in.ams14.l.antispamcloud.com
fe2-r3-in.ams14.l.antispamcloud.com		 AS43054 N-able Acquisition Company B.V.
AS174 Cogent Communications, LLC
10 86400s mx40.check4spam.dk 154.59.104.23
2001:978:2:2c::137:100		 fe2-r3-in.ams14.l.antispamcloud.com
fe2-r3-in.ams14.l.antispamcloud.com		 AS43054 N-able Acquisition Company B.V.
AS174 Cogent Communications, LLC
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   171ms
TXT Record
bqlngmmio6l6fk0cc6jfam8gbo
✉️ SPF
✗ No SPF record — mail spoofing not restricted
📨 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
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC61ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA36ms
FieldValue
Serial2019061200
Primary NS (MNAME)ns01.hosit.dk
Responsible (RNAME)support@sit.dk
Refresh28800s
Retry7200s
Expire1814400s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
37ms
A
36ms
MX
37ms
AAAA
42ms
TXT
171ms
CAA
39ms
HTTPS
37ms
TLSA
124ms
SOA
36ms
MTA-STS
50ms
DNSSEC
61ms
SRV
52ms
Total
718ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-26 23:39:11 718ms 4 NS 1 A 3 MX 🔓 Insecure View
2026-06-19 02:27:21 847ms 4 NS 1 A 3 MX 🔓 Insecure View
2026-06-18 13:18:14 873ms 4 NS 1 A 3 MX 🔓 Insecure View
2026-06-16 20:55:48 542ms 4 NS 1 A 3 MX 🔓 Insecure View
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