studiecoach.dk

📜 Historical scan 2026-09-16 21:41:40  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

studiecoach.dk is a .dk domain served by 3 nameservers (dns1.rackhosting.com, dns2.rackhosting.com, dns3.rackhosting.com). It was registered on 10 October 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.247.77.143 is hosted by Rackhosting.com ApS (AS31590) in Denmark. Mail is handled by mail.studiecoach.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#

3 records   32ms
NameserverIP addressesPTRASN / ISP
dns1.rackhosting.com 77.247.69.212 dns1.rackhosting.com AS31590 Rackhosting.com ApS
dns2.rackhosting.com 45.32.187.211 dns2.rackhosting.com AS20473 The Constant Company, LLC
dns3.rackhosting.com 77.247.69.213 dns3.rackhosting.com AS31590 Rackhosting.com ApS

🌍 A Records#

1 records   43ms
IPTTLPTRASNISP / OrgCIDRCountryCity
77.247.77.143 900s vps138.rackhosting.com AS31590 Rackhosting.com ApS 77.247.64.0/20 🇩🇰 Denmark —

📧 MX Records#

1 records   45ms
PriorityTTLMail ServerIP addressesPTRASN
10 900s mail.studiecoach.dk 77.247.77.143 vps138.rackhosting.com AS31590 Rackhosting.com ApS

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   193ms
TXT Record
v=spf1 mx ip4:77.247.73.192/26 a:studiecoach.dk -all

✉️ SPF#

PolicyRecord (studiecoach.dk)
-all (hard fail) v=spf1 mx ip4:77.247.73.192/26 a:studiecoach.dk -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 2026-10-17 14:50:17
www77.247.77.143 (AS31590) (address records, no CNAME)
www vs bare domainSame network
studiecoach.dk: 77.247.77.143 (AS31590)
www.studiecoach.dk: 77.247.77.143 (AS31590)
WildcardYes: any name under the zone resolves
Denial of existenceNSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

70ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial1632993815
Primary NS (MNAME)dns3.rackhosting.com
Responsible (RNAME)f\@k\.p.galnet.dk
Refresh900s
Retry3600s
Expire604800s
Minimum (neg-cache TTL)10800s

📋 Registration#

WHOIS fetched 2026-10-17 17:51:31
FieldValue
RegistrarCURANET A/S
Registered2016-10-10
Expires2027-10-31 (376d)

🔗 Same registrant#

1 domain

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
bn13.dkCURANET A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
32ms
A
43ms
MX
45ms
AAAA
32ms
TXT
193ms
CAA
42ms
HTTPS
34ms
TLSA
395ms
SOA
0ms
MTA-STS
60ms
DNSSEC
70ms
SRV
60ms
Total
897ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-29 00:06:51 589ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-25 23:15:42 417ms 2 NS 1 A 1 MX 🔓 Insecure
2026-09-23 21:55:19 898ms 2 NS 1 A 1 MX 🔓 Insecure
2026-09-16 21:41:40 shown 897ms 3 NS 1 A 1 MX 🔓 Insecure
2026-07-26 01:33:27 16780ms 3 NS 1 A 1 MX 🔓 Insecure
2026-06-17 12:00:54 751ms 3 NS 1 A 1 MX 🔓 Insecure
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