sem-online.dk

Records from scan: 2026-10-05 21:08:56  ·  1513ms total  ·  last checked 2026-10-16 13:01 (unchanged)
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sem-online.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 17 June 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 136.243.167.76 is hosted by Hetzner Online GmbH (AS24940) in Germany. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records   207ms
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 Records#

1 records   213ms
IPTTLPTRASNISP / OrgCIDRCountryCity
136.243.167.76 3600s dedi5139.your-server.de AS24940 Hetzner Online GmbH 136.243.0.0/16 🇩🇪 Germany Nuremberg

📧 MX Records#

📧
No MX records found

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover136.243.167.76
🔶 Autoconfig136.243.167.76

🔷 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

🧩 Web & zone#

checked 2026-10-12 07:16:19
www136.243.167.76 (AS24940) (address records, no CNAME)
www vs bare domainSame network
sem-online.dk: 136.243.167.76 (AS24940)
www.sem-online.dk: 136.243.167.76 (AS24940)
WildcardYes: any name under the zone resolves
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

383ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

97ms
FieldValue
Serial2026100401
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-05 21:20:51
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2023-06-17
Expires2027-06-16 (242d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
207ms
A
213ms
MX
195ms
AAAA
216ms
TXT
529ms
CAA
238ms
HTTPS
194ms
TLSA
140ms
SOA
97ms
MTA-STS
299ms
DNSSEC
383ms
SRV
315ms
Total
1513ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-05 21:08:56 shown 1513ms 2 NS 1 A 0 MX 🔒 Secure
2026-09-30 20:28:27 600ms 2 NS 1 A 0 MX 🔒 Secure
2026-09-29 20:14:18 1305ms 2 NS 1 A 0 MX 🔒 Secure
2026-06-26 03:25:24 1141ms 2 NS 1 A 0 MX 🔒 Secure
2026-06-23 07:51:24 1169ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-20 18:16:53 2545ms 2 NS 1 A 0 MX 🔒 Secure
2026-06-18 03:16:06 993ms 2 NS 1 A 0 MX 🔒 Secure
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