semlabs.dk
Last scanned: 2026-08-13 18:19:07  ·  921ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   70ms
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   79ms
IPTTLPTRASNISP / OrgCIDRCountryCity
78.31.252.90 3600s ip1.semarkit.net AS204151 EWII Bredbaand A/S 78.31.252.0/22 🇩🇰 Denmark Ans
📧 MX Records1 records   62ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.semark.dk 83.151.155.18 — AS31027 GlobalConnect A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscoversemlabs.dk → 78.31.252.90
🔶 Autoconfigsemlabs.dk → 78.31.252.90
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   153ms
TXT Record
v=spf1 redirect=_spf.semarkit.net
✉️ SPF
PolicyRecord (semlabs.dk)
no all — incomplete SPF v=spf1 redirect=_spf.semarkit.net
📨 DMARC
PolicyRecord (_dmarc.semlabs.dk)
p=reject v=DMARC1; p=reject; sp=reject; aspf=r; adkim=r; fo=1; pct=100; rua=mailto:postmaster@semarkit.net; ruf=mailto:postmaster@semarkit.net;
📬 MTA-STS
✗ No MTA-STS policy — SMTP TLS not enforced
📈 TLSRPT
✗ No TLSRPT record — no SMTP TLS failure reporting
📜 CAA Records2 records   67ms
FlagsTagValue
0 iodef mailto:info@semarkit.net
0 issue letsencrypt.org
🔏 ACME Challenge
TypeNameValue
CNAME _acme-challenge.semlabs.dk semlabs.dk
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC180ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026081301
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
70ms
A
79ms
MX
62ms
AAAA
70ms
TXT
153ms
CAA
67ms
HTTPS
68ms
TLSA
166ms
SOA
0ms
MTA-STS
89ms
DNSSEC
180ms
SRV
95ms
Total
921ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-13 18:19:07 921ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-18 23:58:13 3297ms 2 NS 1 A 1 MX 🔒 Secure View
2026-07-14 22:04:59 4007ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-27 06:41:30 1695ms 2 NS 1 A 1 MX 🔒 Secure View
2026-06-24 13:03:18 990ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-17 23:35:25 750ms 2 NS 1 A 1 MX 🔒 Secure View
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