onlineitkursus.dk

📜 Historical scan 2026-06-17 12:55:13 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

onlineitkursus.dk is a .dk domain served by 4 nameservers (ns1.dn-s.nl, ns2.dn-s.nl, ns3.dn-s.nl and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 136.144.212.108 is hosted by Signet B.V. (AS20857) in The Netherlands. Mail is handled by mail.onlineitkursus.dk. The zone is not DNSSEC-signed, has no 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#

4 records 138ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.dn-s.nl	185.104.28.19 2a06:2ec0:1::10	ns1.zxcs.nl ns1.zxcs.nl	AS206281 Stichting DIGI NL AS206281 Stichting DIGI NL
ns2.dn-s.nl	2a03:b0c0:3:d0::116:2001 46.101.179.64	ns2.zxcs.nl ns2.zxcs.nl	AS14061 DigitalOcean, LLC AS14061 DigitalOcean, LLC
ns3.dn-s.nl	178.62.208.8 2a03:b0c0:2:d0::57:1001	ns3.zxcs.nl ns3.zxcs.nl	AS14061 DigitalOcean, LLC AS14061 DigitalOcean, LLC
ns4.dn-s.nl	185.220.172.14 2a06:2ec0:1:a::d53	ns.zxcs.de ns.zxcs.de	AS206281 Stichting DIGI NL AS206281 Stichting DIGI NL

🌍 A Records#

1 records 135ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
136.144.212.108	—	parking.hostingserver.nl	AS20857	Signet B.V.	136.144.128.0/17	🇳🇱 The Netherlands	—

📧 MX Records#

1 records 121ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mail.onlineitkursus.dk	136.144.212.108	parking.hostingserver.nl	AS20857 Signet B.V.

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 1857ms

TXT Record
v=spf1 a mx a:webmail.hostingserver.nl include:_spf.premiumantispam.nl ~all

✉️ SPF#

Policy	Record (onlineitkursus.dk)
~all (soft fail)	v=spf1 a mx a:webmail.hostingserver.nl include:_spf.premiumantispam.nl ~all

📨 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 2026-10-13 09:27:43

www	136.144.212.108 (AS20857) (address records, no CNAME)
www vs bare domain	Same network onlineitkursus.dk: 136.144.212.108 (AS20857) www.onlineitkursus.dk: 136.144.212.108 (AS20857)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

340ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA#

131ms

Field	Value
Serial	2024082006
Primary NS (MNAME)	ns1.dn-s.nl
Responsible (RNAME)	nic@virtualregistrar.nl
Refresh	28800s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	300s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

138ms

135ms

121ms

AAAA

128ms

TXT

1857ms

CAA

123ms

HTTPS

130ms

TLSA

2260ms

SOA

131ms

MTA-STS

296ms

DNSSEC

340ms

SRV

0ms

Total

5600ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 15:38:13	3765ms	4 NS 1 A 1 MX	🔓 Insecure
2026-08-20 07:39:08	6875ms	4 NS 1 A 1 MX	🔓 Insecure
2026-08-10 03:48:53	6831ms	4 NS 1 A 1 MX	🔓 Insecure
2026-07-26 15:44:54	6425ms	4 NS 1 A 1 MX	🔓 Insecure
2026-07-22 12:34:27	5015ms	4 NS 1 A 1 MX	🔓 Insecure
2026-07-21 11:44:37	22472ms	4 NS 1 A 1 MX	🔓 Insecure
2026-07-20 09:16:34	3631ms	4 NS 1 A 1 MX	🔓 Insecure
2026-07-08 04:47:51	14136ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-29 06:43:02	2055ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-17 12:55:13 shown	5600ms	4 NS 1 A 1 MX	🔓 Insecure