sysadm.dk

📜 Historical scan 2026-10-04 06:40:58  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sysadm.dk is a .dk domain served by 2 nameservers (ns01.tinydns.dk, ns02.tinydns.dk). It was registered on 18 June 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.mxx.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   34ms
NameserverIP addressesPTRASN / ISP
ns01.tinydns.dk 167.172.166.123
2a03:b0c0:3:d0::12ec:e001		 ns01.tinydns.dk
ns01.tinydns.dk		 AS14061 DigitalOcean, LLC
AS14061 DigitalOcean, LLC
ns02.tinydns.dk 174.138.8.195
2a03:b0c0:2:d0::1065:1		 ns02.tinydns.dk
ns02.tinydns.dk		 AS14061 DigitalOcean, LLC
AS14061 DigitalOcean, LLC

🌍 A Records#

🌍
No A records found

📧 MX Records#

1 records   41ms
PriorityTTLMail ServerIP addressesPTRASN
10 1800s mail.mxx.dk 165.22.68.211
2a03:b0c0:3:d0::10e9:a001		 mail.mxx.dk
mail.mxx.dk		 AS14061 DigitalOcean, LLC
AS14061 DigitalOcean, LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records   273ms
TXT Record
google-site-verification=vGy61H6fexDXZqrmPf1AC8euJDCbJNy5-CWUNHjeM4s
have-i-been-pwned-verification=dweb_60b72htjostcccxq5f0s5odq
v=spf1 include:mxx.dk -all

✉️ SPF#

PolicyRecord (sysadm.dk)
-all (hard fail) v=spf1 include:mxx.dk -all

📨 DMARC#

PolicyRecord (_dmarc.sysadm.dk)
p=reject v=DMARC1; p=reject; pct=100; rua=mailto:support@mxx.dk; adkim=r; aspf=r

📬 MTA-STS#

216ms
CheckResult
Status🔒 Enforce
TXT record (_mta-sts)✓ Found
HTTPS policy✓ Valid
Modeenforce
Policy ID20260131210517Z
max_age604800s
Policy MXmail.mxx.dk

📈 TLSRPT#

StatusReport address (rua)
✓ Enabled mailto:rpt@mxx.dk

📜 CAA Records#

2 records   40ms
FlagsTagValue
0 issue letsencrypt.org
0 issuewild letsencrypt.org

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-23 18:10:34
wwwNXDOMAIN
www vs bare domainNeither resolves
sysadm.dk: no address
www.sysadm.dk: no address
WildcardNo
Denial of existenceNSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
default — RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

1 records   121ms
Service / OwnerTypeCert association
SMTP _25._tcp.mail.mxx.dk DANE-EE · SPKI · SHA-256 EF5967F843AFA8B1926E0819D33A8F16…

🔐 DNSSEC#

72ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset

🏷️ SOA#

59ms
FieldValue
Serial2026100300
Primary NS (MNAME)ns01.tinydns.dk
Responsible (RNAME)hostmaster@tinydns.dk
Refresh3600s
Retry900s
Expire1209600s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-14 07:47:47
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2024-06-18
Expires2027-06-17 (236d)

🔗 Same registrant#

12 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
attn.dkPunktum dk A/S (direct)
enroll.dkPunktum dk A/S (direct)
hourly.dkPunktum dk A/S (direct)
idently.dkPunktum dk A/S (direct)
idp.dkPunktum dk A/S (direct)
mxx.dkPunktum dk A/S (direct)
olinsson.dkPunktum dk A/S (direct)
privately.dkPunktum dk A/S (direct)
securely.dkPunktum dk A/S (direct)
sftp.dkPunktum dk A/S (direct)
thorstenson.dkPunktum dk A/S (direct)
tinydns.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
34ms
A
49ms
MX
41ms
AAAA
51ms
TXT
273ms
CAA
40ms
HTTPS
44ms
TLSA
121ms
SOA
59ms
MTA-STS
216ms
DNSSEC
72ms
SRV
55ms
Total
753ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-23 18:10:34 1643ms 2 NS 0 A 1 MX 🔒 Secure
2026-10-22 15:46:54 1149ms 2 NS 0 A 1 MX 🔒 Secure
2026-10-21 02:15:14 1615ms 2 NS 0 A 1 MX 🔒 Secure
2026-10-19 12:13:16 1685ms 2 NS 0 A 1 MX 🔒 Secure
2026-10-16 10:08:25 1839ms 2 NS 0 A 1 MX 🔒 Secure
2026-10-15 08:16:17 2085ms 2 NS 0 A 1 MX 🔒 Secure
2026-10-14 07:33:47 1158ms 2 NS 0 A 1 MX 🔒 Secure
2026-10-13 06:23:24 2192ms 2 NS 0 A 1 MX 🔒 Secure
2026-10-10 21:41:56 1227ms 2 NS 0 A 1 MX 🔒 Secure
2026-10-09 21:13:31 1058ms 2 NS 0 A 1 MX 🔒 Secure
2026-10-07 18:34:05 767ms 2 NS 0 A 1 MX 🔒 Secure
2026-10-07 11:43:41 3677ms 2 NS 0 A 1 MX 🔒 Secure
2026-10-05 06:50:25 2695ms 2 NS 0 A 1 MX 🔒 Secure
2026-10-04 06:40:58 shown 753ms 2 NS 0 A 1 MX 🔒 Secure
2026-10-02 06:34:35 1466ms 2 NS 0 A 1 MX 🔒 Secure
2026-10-01 06:28:46 1537ms 2 NS 0 A 1 MX 🔒 Secure
2026-09-30 06:18:01 1248ms 2 NS 0 A 1 MX 🔒 Secure
2026-09-28 14:16:37 759ms 2 NS 0 A 1 MX 🔒 Secure
2026-09-27 14:12:00 1705ms 2 NS 0 A 1 MX 🔒 Secure
2026-09-26 13:59:47 1143ms 2 NS 0 A 1 MX 🔒 Secure
2026-09-24 13:34:08 880ms 2 NS 0 A 1 MX 🔒 Secure
2026-09-23 13:18:12 660ms 2 NS 0 A 1 MX 🔒 Secure
2026-09-20 05:02:59 1186ms 2 NS 0 A 1 MX 🔒 Secure
2026-09-15 22:22:55 1351ms 2 NS 0 A 1 MX 🔒 Secure
2026-09-14 17:11:13 1373ms 2 NS 0 A 1 MX 🔒 Secure
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