ism.dk
Last scanned: 2026-08-27 11:34:21  ·  908ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   49ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S
🌍 A Records2 records   64ms
IPTTLPTRASNISP / OrgCIDRCountryCity
172.232.147.252 43200s 172-232-147-252.ip.linodeusercontent.com AS63949 Akamai Connected Cloud 172.232.128.0/17 🇸🇪 Sweden Stockholm
172.233.57.17 3600s 172-233-57-17.ip.linodeusercontent.com AS63949 Akamai Connected Cloud 172.233.0.0/16 🇳🇱 The Netherlands Amsterdam
📧 MX Records1 records   64ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)
🔷 AAAA Records (IPv6)2 records   70ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2600:3c09::f03c:94ff:fed1:f1bb 3600s — AS63949 Akamai Connected Cloud 2600:3c08:0:0:0:0:0:0/30 🇸🇪 Sweden Stockholm
2600:3c0e::f03c:94ff:fed1:4ea 3600s — AS63949 Akamai Connected Cloud 2600:3c0e:0:0:0:0:0:0/32 🇳🇱 The Netherlands Amsterdam
🔐 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
PolicyRecord (_dmarc.ism.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
🔏 ACME Challenge
TypeNameValue
TXT _acme-challenge.ism.dk 7E8dlLrn3ibDzHiAbejWJnUoxOTZCsD5-YmsVPqZpcE
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC119ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026081201
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
49ms
A
64ms
MX
64ms
AAAA
70ms
TXT
199ms
CAA
97ms
HTTPS
78ms
TLSA
156ms
SOA
0ms
MTA-STS
100ms
DNSSEC
119ms
SRV
70ms
Total
908ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 11:34:21 908ms 2 NS 2 A 1 MX 🔒 Secure View
2026-08-13 07:24:10 677ms 2 NS 2 A 1 MX 🔒 Secure View
2026-07-19 09:53:51 805ms 2 NS 2 A 1 MX 🔒 Secure View
2026-07-13 21:39:48 801ms 2 NS 2 A 1 MX 🔒 Secure View
2026-06-23 18:11:02 851ms 2 NS 2 A 1 MX 🔒 Secure View
2026-06-17 11:46:43 2777ms 2 NS 2 A 0 MX 🔒 Secure View
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