fermium.dk
Last scanned: 2026-09-05 17:25:36  ·  4440ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   37ms
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 Records1 records   38ms
IPTTLPTRASNISP / OrgCIDRCountryCity
188.179.233.200 600s 188-179-233-200-dynamic.dk.customer.tdc.net AS3292 TDC Holding A/S 188.176.0.0/13 🇩🇰 Denmark Allerød Municipality
📧 MX Records1 records   47ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s .  Null MX — domain accepts no email (RFC 7505)
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover188.179.233.200
🔶 Autoconfig188.179.233.200
🔷 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)
🔐 DNSSEC71ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA43ms
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
37ms
A
38ms
MX
47ms
AAAA
41ms
TXT
174ms
CAA
42ms
HTTPS
39ms
TLSA
42ms
SOA
43ms
MTA-STS
52ms
DNSSEC
71ms
SRV
68ms
Total
4440ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-05 17:25:36 4440ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-26 22:13:57 553ms 2 NS 1 A 1 MX 🔒 Secure View
2026-08-12 12:59:57 2642ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-27 21:31:32 4642ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-19 05:57:24 8543ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-13 08:54:55 559ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-25 06:21:48 729ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-17 10:14:49 479ms 2 NS 1 A 0 MX 🔒 Secure View
2026-06-17 10:07:39 874ms 2 NS 1 A 0 MX 🔒 Secure View
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