21centuryteaching.dk
Last scanned: 2026-09-03 12:51:16  ·  9751ms total
🧟 Lame delegation ⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   60ms
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 Records
🌍
No A records found
📧 MX Records
📧
No MX records found
🔷 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)
🔐 DNSSEC9126ms
CheckResult
Validation Status⚠️ Bogus
AD Flag (resolver validates)✗ Not set
DS Record✓ Found
DNSKEY Record✗ Not found
Flagsresolution failed: failure
🏷️ SOA
✗ No SOA record found
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
60ms
A
66ms
MX
68ms
AAAA
79ms
TXT
306ms
CAA
70ms
HTTPS
79ms
TLSA
58ms
SOA
41ms
MTA-STS
83ms
DNSSEC
9126ms
SRV
79ms
Total
9751ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-03 12:51:16 9751ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-09-01 12:24:56 9787ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-08-27 20:47:14 9827ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-08-24 02:32:32 1188ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-08-23 01:11:05 9951ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-08-22 00:58:57 5812ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-08-21 00:55:20 1535ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-08-19 22:45:46 9449ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-08-18 21:47:34 2279ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-08-17 20:31:24 4319ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-08-16 15:01:02 1479ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-08-14 04:27:25 2481ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-08-12 18:54:55 9997ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-08-11 11:54:43 2752ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-08-10 11:47:48 1051ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-08-06 03:56:53 1105ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-07-29 15:45:40 9864ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-07-28 04:26:59 9875ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-07-27 04:13:16 1106ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-07-26 03:49:15 1103ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-07-25 03:26:16 8862ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-07-24 01:25:15 1063ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-07-23 00:39:56 1090ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-07-21 23:31:04 8946ms 2 NS 0 A 0 MX ⚠️ Bogus View
2026-07-20 22:54:41 1111ms 2 NS 0 A 0 MX ⚠️ Bogus View
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