serlo.dk

📜 Historical scan 2026-10-12 06:26:22  ·  ← Latest scan
🚫 Deactivated by the registry ⬇ Zone File 📜 Timeline & History ⚡ Scan Now

serlo.dk is a .dk domain the registry has taken out of service: it is delegated to the registry's own sentinel nameservers (nonexistent.punktum.dk), so it does not resolve. It was registered on 8 October 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. 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#

1 records   0ms
NameserverIP addressesPTRASN / ISP
nonexistent.punktum.dk — — —

🌍 A Records#

🌍
No A records found

📧 MX Records#

📧
No MX records found

🔷 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#

latest probe, not this scan · checked 2026-09-29 17:28:21
wwwAddress record (no CNAME)
WildcardYes: any name under the zone resolves
Denial of existenceNSEC zone can be walked (all names enumerable)
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

0ms
CheckResult
Validation Status❓ Unknown (the delegated nameservers don't answer)
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsregistry sentinel delegation (no resolvable NS); DNSSEC not evaluated

🏷️ SOA#

✗ No SOA record found

📋 Registration#

WHOIS fetched 2026-10-09 00:42:16
FieldValue
RegistrarINTERNET 123 ApS
Registered2025-10-08
Expires2026-10-07 (expired)
📋 WHOIS#

⏱️ Lookup Timing#

NS
0ms
A
0ms
MX
0ms
AAAA
0ms
TXT
0ms
CAA
0ms
HTTPS
0ms
TLSA
1ms
SOA
0ms
MTA-STS
0ms
DNSSEC
0ms
SRV
0ms
Total
109ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-19 15:13:08 241ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-18 14:33:51 390ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-17 13:35:58 301ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-16 12:57:29 311ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-15 11:09:52 215ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-14 09:03:44 116ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-13 07:46:30 223ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-12 06:26:22 shown 109ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-11 04:57:40 313ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-10 03:20:53 365ms 1 NS 0 A 0 MX ❓ Unknown
2026-10-09 00:31:49 1052ms 1 NS 0 A 0 MX ❓ Unknown
2026-09-29 17:28:21 1597ms 3 NS 1 A 1 MX 🔒 Secure
2026-06-25 11:48:27 1224ms 3 NS 1 A 1 MX 🔒 Secure
2026-06-24 07:55:26 853ms 3 NS 1 A 1 MX ⚠️ Bogus
2026-06-18 06:07:31 692ms 3 NS 1 A 1 MX 🔒 Secure
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