opto.dk
Last scanned: 2026-08-28 04:13:44  ·  2678ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   34ms
NameserverIP addressesPTRASN / ISP
ns.dandomain.dk 185.25.141.3
2a02:2339:4006:109::dd		 ns.dandomain.dk
ns.dandomain.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.dandomain.dk 2a02:2339:1:108::dd:dd
91.197.248.66		 ns2.dandomain.dk
ns2.dandomain.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
🌍 A Records1 records   46ms
IPTTLPTRASNISP / OrgCIDRCountryCity
35.241.247.115 3600s 115.247.241.35.bc.googleusercontent.com AS396982 Google LLC 35.240.0.0/13 🇧🇪 Belgium Brussels
📧 MX Records5 records   44ms
PriorityTTLMail ServerIP addressesPTRASN
1 3600s aspmx.l.google.com 173.194.221.26
2a00:1450:4010:c20::1b		 lm-in-f26.1e100.net
yulppbn-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
5 3600s alt1.aspmx.l.google.com 192.178.158.26
2404:6800:4013:813::1b		 lcdels-in-f26.1e100.net
lcdels-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
5 3600s alt2.aspmx.l.google.com 173.194.41.26
173.194.41.26
2404:6800:4001:c01::1a		 yukulwh-in-f26.1e100.net
mad01s14-in-f26.1e100.net
yukulwh-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
10 3600s alt3.aspmx.l.google.com 172.253.158.27
2404:6800:4003:c26::1b		 so-in-f27.1e100.net
so-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
10 3600s alt4.aspmx.l.google.com 108.177.125.27
2404:6800:4008:c01::1b		 tp-in-f27.1e100.net
tp-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google 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)
🔐 DNSSEC2060ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2018110500
Primary NS (MNAME)ns.dandomain.dk
Responsible (RNAME)hostmaster@dandomain.dk
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)300s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
34ms
A
46ms
MX
44ms
AAAA
46ms
TXT
160ms
CAA
42ms
HTTPS
44ms
TLSA
159ms
SOA
0ms
MTA-STS
56ms
DNSSEC
2060ms
SRV
50ms
Total
2678ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 04:13:44 2678ms 2 NS 1 A 5 MX 🔒 Secure View
2026-07-02 21:15:12 699ms 2 NS 1 A 5 MX 🔒 Secure View
2026-06-21 19:01:50 580ms 2 NS 1 A 5 MX 🔒 Secure View
2026-06-19 17:21:56 560ms 2 NS 1 A 5 MX 🔒 Secure View
2026-06-17 13:54:39 2404ms 2 NS 1 A 5 MX 🔒 Secure View
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