semnet.dk

📜 Historical scan 2026-07-18 18:34:51  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

semnet.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 3 September 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 78.31.252.90 is hosted by EWII Bredbaand A/S (AS204151) in Denmark. Mail is handled by mail.semark.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records   51ms
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   53ms
IPTTLPTRASNISP / OrgCIDRCountryCity
78.31.252.90 3600s ip1.semarkit.net AS204151 EWII Bredbaand A/S 78.31.252.0/22 🇩🇰 Denmark Ans

📧 MX Records#

1 records   50ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.semark.dk 83.151.155.18 — AS31027 GlobalConnect A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoversemnet.dk → 78.31.252.90
🔶 Autoconfigsemnet.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 Records#

1 records   353ms
TXT Record
v=spf1 redirect=_spf.semarkit.net

✉️ SPF#

PolicyRecord (semnet.dk)
redirect=_spf.semarkit.net v=spf1 redirect=_spf.semarkit.net

📨 DMARC#

PolicyRecord (_dmarc.semnet.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 Records#

2 records   43ms
FlagsTagValue
0 iodef mailto:info@semarkit.net
0 issue letsencrypt.org

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-14 22:16:38
www CNAMEsemnet.dk (all on semnet.dk)
www vs bare domainSame network
semnet.dk: 78.31.252.90 (AS204151)
www.semnet.dk: 78.31.252.90 (AS204151)
WildcardYes: any name under the zone resolves
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔏 ACME Challenge#

TypeNameValue
CNAME _acme-challenge.semnet.dk semnet.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

137ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2026071801
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-12 00:17:45
FieldValue
RegistrarWEBHOSTING A/S
Registered2020-09-03
Expires2027-09-30 (348d)

🔗 Same registrant#

16 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

DomainRegistrar
bittoo.dkWEBHOSTING A/S
bumblebeegård.dkWEBHOSTING A/S
flying-mause.dkWEBHOSTING A/S
flying-mouse.dkWEBHOSTING A/S
hexacorp.dkWEBHOSTING A/S
hexagroup.dkWEBHOSTING A/S
negativez.dkWEBHOSTING A/S
oz1bdu.dkWEBHOSTING A/S
oz3s.dkWEBHOSTING A/S
rocket-scientist.dkWEBHOSTING A/S
roguesat.dkWEBHOSTING A/S
rubybordercollie.dkWEBHOSTING A/S
semdns.dkWEBHOSTING A/S
semlabs.dkWEBHOSTING A/S
strengagergaard.dkWEBHOSTING A/S
strengagergård.dkWEBHOSTING A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
51ms
A
53ms
MX
50ms
AAAA
43ms
TXT
353ms
CAA
43ms
HTTPS
59ms
TLSA
118ms
SOA
0ms
MTA-STS
55ms
DNSSEC
137ms
SRV
154ms
Total
9098ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-14 22:16:37 2224ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-23 21:55:04 575ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-16 19:52:24 777ms 2 NS 1 A 1 MX 🔒 Secure
2026-08-14 11:33:55 931ms 2 NS 1 A 1 MX 🔒 Secure
2026-07-18 18:34:51 shown 9098ms 2 NS 1 A 1 MX 🔒 Secure
2026-07-14 16:05:31 4118ms 2 NS 1 A 1 MX 🔒 Secure
2026-07-02 10:08:41 2259ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-20 21:15:27 630ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-18 17:53:56 788ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-18 08:39:12 837ms 2 NS 1 A 1 MX 🔒 Secure
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