sulo.dk
📜 Historical scan 2026-06-17 13:21:02  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   136ms
NameserverIP addressesPTRASN / ISP
ns1.bb-online.net 185.206.123.1 ns1.bb-online.net AS212217 BB-Online UK Ltd
ns2.bb-online.org 81.30.104.2 ns2.bb-online.org AS212217 BB-Online UK Ltd
ns3.bb-online.info 46.253.129.1 ns3.bb-online.uk AS212217 BB-Online UK Ltd
ns4.bb-online.biz 91.238.194.4 ns4.bb-online.biz AS212217 BB-Online UK Ltd
🌍 A Records1 records   151ms
IPTTLPTRASNISP / OrgCIDRCountryCity
213.123.60.239 — — AS2856 British Telecommunications PLC 213.120.0.0/14 🇬🇧 United Kingdom High Wycombe
📧 MX Records3 records   119ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mail1.bb-online.co.uk 136.244.76.63 mail1.bb-online.co.uk AS20473 The Constant Company, LLC
20 — mail2.bb-online.co.uk 45.77.226.139 mail2.bb-online.co.uk AS20473 The Constant Company, LLC
30 — mail4.bb-online.co.uk 108.61.173.17 mail4.bb-online.co.uk AS20473 The Constant Company, LLC
🔷 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
✗ 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)
🔐 DNSSEC184ms
CheckResult
Validation Status⚠️ Bogus
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsbroken trust chain resolving 'sulo.dk/A/IN': 127.0.0.1#53
🏷️ SOA80ms
FieldValue
Serial2025090202
Primary NS (MNAME)ns1.bb-online.net
Responsible (RNAME)postmaster@sulo.dk
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)10800s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
136ms
A
151ms
MX
119ms
AAAA
86ms
TXT
618ms
CAA
58ms
HTTPS
133ms
TLSA
2144ms
SOA
80ms
MTA-STS
155ms
DNSSEC
184ms
SRV
0ms
Total
4675ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-06-28 19:53:13 2996ms 4 NS 1 A 3 MX 🔓 Insecure View
2026-06-17 13:21:02 4675ms 4 NS 1 A 3 MX ⚠️ Bogus View
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