usefulgroup.dk
Last scanned: 2026-08-28 10:06:13  ·  1299ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   46ms
NameserverIP addressesPTRASN / ISP
ns.zxcs.be 2a03:b0c0:3:d0::116:2001
46.101.179.64		 ns2.zxcs.nl
ns2.zxcs.nl		 AS14061 DigitalOcean, LLC
AS14061 DigitalOcean, LLC
ns.zxcs.eu 178.62.208.8
2a03:b0c0:2:d0::57:1001		 ns3.zxcs.nl
ns3.zxcs.nl		 AS14061 DigitalOcean, LLC
AS14061 DigitalOcean, LLC
ns.zxcs.nl 185.104.28.19
2a06:2ec0:1::10		 ns1.zxcs.nl
ns1.zxcs.nl		 AS206281 Stichting DIGI NL
AS206281 Stichting DIGI NL
🌍 A Records1 records   63ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.104.28.238 86400s redirectserver01.zxcs.nl AS206281 Stichting DIGI NL 185.104.28.0/22 🇳🇱 The Netherlands —
📧 MX Records
📧
No MX records found
🔷 AAAA Records (IPv6)1 records   42ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a06:2ec0:1::ffed 86400s redirectserver01.zxcs.nl AS206281 Stichting DIGI NL 2a06:2ec0:0:0:0:0:0:0/32 🇳🇱 The Netherlands —
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   709ms
TXT Record
v=spf1 a mx -all
✉️ SPF
PolicyRecord (usefulgroup.dk)
-all (hard fail) v=spf1 a mx -all
📨 DMARC
PolicyRecord (_dmarc.usefulgroup.dk)
p=reject v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s
📬 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)
🔐 DNSSEC106ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026040814
Primary NS (MNAME)ns.zxcs.nl
Responsible (RNAME)hostmaster@usefulgroup.dk
Refresh600s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
46ms
A
63ms
MX
61ms
AAAA
42ms
TXT
709ms
CAA
45ms
HTTPS
74ms
TLSA
187ms
SOA
0ms
MTA-STS
769ms
DNSSEC
106ms
SRV
831ms
Total
1299ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 10:06:13 1299ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-07-02 13:37:41 1562ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-06-24 03:19:35 662ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-06-22 15:49:38 3311ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-06-21 23:12:06 945ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-21 19:55:12 731ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-06-21 11:29:29 1114ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-19 22:02:00 2178ms 3 NS 1 A 0 MX 🔓 Insecure View
2026-06-18 07:11:37 1839ms 3 NS 1 A 0 MX 🔓 Insecure View
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