effective-learning.dk
Last scanned: 2026-08-28 13:13:57  ·  539ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   28ms
🌍 A Records2 records   34ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.9.175 300s AS13335 Cloudflare, Inc. 104.21.0.0/17
172.67.161.35 300s AS13335 Cloudflare, Inc. 172.67.128.0/17
📧 MX Records
📧
No MX records found
🔷 AAAA Records (IPv6)2 records   27ms
🔐 HTTPS Records1 records   37ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.9.175,172.67.161.35 ech=AEX+DQBBjQAgACBSh8QW+XqlJXROM9FqAwq4DhVtV7x48NVL/eUjcZ0oNAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:9af,2606:4700:3037::ac43:a123
📝 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
🔏 ACME Challenge
TypeNameValue
TXT _acme-challenge.effective-learning.dk O2mUnA341Kg7XTNBzx0j6thRVp6cov359X0tfBuRdhs
TXT _acme-challenge.effective-learning.dk UpBLtlVV6T3JVJSSlASmhHdnGd5vbhvooOcAEPJgbDw
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC98ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2413371039
Primary NS (MNAME)aragorn.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s
📋 RegistrationWHOIS fetched 2026-08-28 13:14:38
FieldValue
RegistrarAbion AB
Registered2018-07-16
Expires2027-07-31 (332d)
📋 WHOIS
⏱️ Lookup Timing
NS
28ms
A
34ms
MX
33ms
AAAA
27ms
TXT
166ms
CAA
29ms
HTTPS
37ms
TLSA
53ms
SOA
0ms
MTA-STS
54ms
DNSSEC
98ms
SRV
54ms
Total
539ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-28 13:13:57 539ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-08-24 20:03:14 2689ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-08-08 07:22:15 788ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-07-13 05:50:18 900ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-24 21:28:51 859ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-24 11:42:14 761ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-19 23:18:07 699ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-17 06:16:05 10376ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-17 06:06:03 1463ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-17 06:02:57 308ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-17 06:00:39 389ms 2 NS 2 A 0 MX 🔓 Insecure View
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