holbaek-realskolen.dk
Last scanned: 2026-07-02 16:35:24  ·  1093ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   61ms
NameserverIP addressesPTRASN / ISP
mimer.deic.dk 2001:87f:ff27:65::66
95.128.27.66		 mimer.deic.dk
mimer.deic.dk		 AS198455 Danmarks Tekniske Universitet
AS198455 Danmarks Tekniske Universitet
ns-soa.darenet.dk 130.226.179.50
2001:878:0:e000:82:e2:b3:32		 ns-soa.darenet.dk
ns-soa.darenet.dk		 AS1835 IDDQD-AS
AS1835 IDDQD-AS
orion.i2.dk 78.153.182.90 orion.i2.dk AS31027 GlobalConnect A/S
🌍 A Records1 records   39ms
IPTTLPTRASNISP / OrgCIDRCountryCity
87.48.131.26 86400s — AS3292 TDC Holding A/S 87.48.0.0/13 🇩🇰 Denmark Havdrup
📧 MX Records4 records   44ms
PriorityTTLMail ServerIP addressesPTRASN
10 86400s mx10.skolekom.dk — — —
20 86400s mx20.skolekom.dk — — —
30 86400s mx30.skolekom.dk — — —
40 86400s mx40.skolekom.dk — — —
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   507ms
TXT Record
SOA=1701359301
✉️ 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)
🔐 DNSSEC171ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA54ms
FieldValue
Serial1701359301
Primary NS (MNAME)mimer.deic.dk
Responsible (RNAME)dns@support.i2.dk
Refresh16384s
Retry2048s
Expire2097152s
Minimum (neg-cache TTL)2560s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
61ms
A
39ms
MX
44ms
AAAA
40ms
TXT
507ms
CAA
56ms
HTTPS
47ms
TLSA
153ms
SOA
54ms
MTA-STS
62ms
DNSSEC
171ms
SRV
164ms
Total
1093ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-07-02 16:35:24 1093ms 3 NS 1 A 4 MX 🔓 Insecure View
2026-06-22 05:00:18 1393ms 3 NS 1 A 4 MX 🔓 Insecure View
2026-06-22 02:05:57 978ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-20 03:28:26 1349ms 3 NS 1 A 4 MX 🔓 Insecure View
2026-06-18 23:30:04 1901ms 3 NS 1 A 4 MX 🔓 Insecure View
2026-06-17 13:11:03 268ms 0 NS 0 A 0 MX ❓ Unknown View
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