bifrost-sommerskole.dk
Last scanned: 2026-08-30 15:53:29  ·  1895ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers4 records   81ms
NameserverIP addressesPTRASN / ISP
ns1.nhl-data.dk 185.136.96.11
2a06:fb00:1::1:11		 ns1.nhl-data.dk
ns1.nhl-data.dk		 AS203391 Cloud DNS Ltd
AS203391 Cloud DNS Ltd
ns2.nhl-data.dk 185.136.97.11
2a06:fb00:1::2:11		 ns2.nhl-data.dk
ns2.nhl-data.dk		 AS203391 Cloud DNS Ltd
AS203391 Cloud DNS Ltd
ns3.nhl-data.dk 185.136.98.11
2a06:fb00:1::3:11		 ns3.nhl-data.dk
ns3.nhl-data.dk		 AS203391 Cloud DNS Ltd
AS203391 Cloud DNS Ltd
ns4.nhl-data.dk 185.136.99.11
2a06:fb00:1::4:11		 ns4.nhl-data.dk
ns4.nhl-data.dk		 AS203391 Cloud DNS Ltd
AS203391 Cloud DNS Ltd
🌍 A Records1 records   105ms
IPTTLPTRASNISP / OrgCIDRCountryCity
46.183.138.100 3600s — AS47292 Sentia Denmark A/S 46.183.138.0/23 🇩🇰 Denmark —
📧 MX Records3 records   135ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx1.gigahost.dk 46.183.139.11 mx1.gigahost.dk AS47292 Sentia Denmark A/S
10 3600s mx2.gigahost.dk 46.183.139.12 mx2.gigahost.dk AS47292 Sentia Denmark A/S
10 3600s mx3.gigahost.dk 46.183.139.13 mx3.gigahost.dk AS47292 Sentia Denmark A/S
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   191ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 10 10 443 autodiscover.gigahost.dk
📝 TXT Records2 records   335ms
TXT Record
spf2.0/pra
v=spf1 mx include:spf.gigahost.dk -all
✉️ SPF
PolicyRecord (bifrost-sommerskole.dk)
-all (hard fail) v=spf1 mx include:spf.gigahost.dk -all
📨 DMARC
PolicyRecord (_dmarc.bifrost-sommerskole.dk)
p=reject v=DMARC1; p=reject;
📬 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)
🔐 DNSSEC280ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026082901
Primary NS (MNAME)ns1.nhl-data.dk
Responsible (RNAME)hostmaster@nhl-data.dk
Refresh10800s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
81ms
A
105ms
MX
135ms
AAAA
108ms
TXT
335ms
CAA
111ms
HTTPS
102ms
TLSA
288ms
SOA
0ms
MTA-STS
203ms
DNSSEC
280ms
SRV
191ms
Total
1895ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-30 15:53:29 1895ms 4 NS 1 A 3 MX 🔒 Secure View
2026-08-09 20:23:45 921ms 4 NS 1 A 3 MX 🔒 Secure View
2026-07-21 12:22:42 1045ms 4 NS 1 A 3 MX 🔒 Secure View
2026-07-01 11:32:19 667ms 4 NS 1 A 3 MX 🔒 Secure View
2026-06-25 16:01:37 1001ms 4 NS 1 A 3 MX 🔒 Secure View
2026-06-18 15:31:37 851ms 4 NS 1 A 3 MX 🔒 Secure View
2026-06-16 14:29:14 649ms 4 NS 1 A 3 MX 🔒 Secure View
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