copenhagensurfschool.dk

📜 Historical scan 2026-06-20 03:09:51  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

copenhagensurfschool.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 12 April 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.99.117.187 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by mx10.antispam.mailspamprotection.com, mx20.antispam.mailspamprotection.com and 1 more. 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#

4 records   238ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com 2a02:2339:1:15c::4562:4562
91.197.248.78		 ns1.simply.com
ns1.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.simply.com 185.25.141.15
2a02:2339:4006:101::4562:4562		 ns2.simply.com
ns2.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns3.simply.com 91.197.248.79 ns3.simply.com AS48854 team.blue Denmark A/S
ns4.simply.com 91.197.248.80 ns4.simply.com AS48854 team.blue Denmark A/S

🌍 A Records#

1 records   399ms
IPTTLPTRASNISP / OrgCIDRCountryCity
91.99.117.187 600s static.187.117.99.91.clients.your-server.de AS24940 Hetzner Online GmbH 91.98.0.0/15 🇩🇪 Germany Falkenstein

📧 MX Records#

3 records   209ms
PriorityTTLMail ServerIP addressesPTRASN
10 656s mx10.antispam.mailspamprotection.com 34.149.79.66 66.79.149.34.bc.googleusercontent.com AS396982 Google LLC
20 656s mx20.antispam.mailspamprotection.com 34.120.156.61 61.156.120.34.bc.googleusercontent.com AS396982 Google LLC
30 656s mx30.antispam.mailspamprotection.com 34.111.121.216 216.121.111.34.bc.googleusercontent.com AS396982 Google LLC

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover94.231.103.123
🔶 Autoconfigmaildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records   534ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 10 10 443 maildiscover.simply.com

📝 TXT Records#

4 records   1178ms
TXT Record
google-site-verification=_Ycr0r5pc-XOvNgvkf8MTNhpgLsU_gEQw6XpMpMXQS0
klaviyo-site-verification=Tapuhm
mandrill_verify.3dIjfSOYVC34s7QJoqL2bQ
v=spf1 include:spf.simply.com include:spf.mandrillapp.com include:copenhagensurfschool.dk.spf.auto.dnssmarthost.net ?all

✉️ SPF#

PolicyRecord (copenhagensurfschool.dk)
?all (neutral) v=spf1 include:spf.simply.com include:spf.mandrillapp.com include:copenhagensurfschool.dk.spf.auto.dnssmarthost.net ?all

📨 DMARC#

PolicyRecord (_dmarc.copenhagensurfschool.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:info@copenhagensurfschool.dk;

📬 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 2026-10-16 02:52:47
www CNAMEcopenhagensurfschool.dk (all on copenhagensurfschool.dk)
www vs bare domainSame network
copenhagensurfschool.dk: 91.99.117.187 (AS24940)
www.copenhagensurfschool.dk: 91.99.117.187 (AS24940)
WildcardYes: any name under the zone resolves
Denial of existenceNSEC zone can be walked (all names enumerable)
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
default copenhagensurfschool.dk.default.dkim.auto.dnssmarthost.net RSA · ~1024 bit below 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: 4/10 · policy: ?all

  • warn "?all" is neutral: it gives receivers no guidance, much like having no SPF

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.copenhagensurfschool.dk G1siPYASnhaqadHY0BlLt9f6iQdftPdfVGbvIDLY8d0

🔗 TLSA / DANE#

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

🔐 DNSSEC#

920ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

487ms
FieldValue
Serial2026041101
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s

📋 Registration#

WHOIS fetched 2026-10-10 20:56:24
FieldValue
RegistrarSimply.com A/S
Registered2016-04-12
Expires2027-04-30 (186d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
238ms
A
399ms
MX
209ms
AAAA
189ms
TXT
1178ms
CAA
193ms
HTTPS
205ms
TLSA
933ms
SOA
487ms
MTA-STS
556ms
DNSSEC
920ms
SRV
534ms
Total
6627ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-01 06:33:49 958ms 4 NS 1 A 3 MX 🔒 Secure
2026-09-19 00:12:25 714ms 4 NS 1 A 3 MX 🔒 Secure
2026-06-29 15:11:56 830ms 4 NS 1 A 3 MX 🔒 Secure
2026-06-29 13:49:29 889ms 4 NS 1 A 3 MX 🔒 Secure
2026-06-25 07:36:19 2438ms 4 NS 1 A 3 MX 🔒 Secure
2026-06-20 07:27:53 719ms 4 NS 1 A 3 MX 🔒 Secure
2026-06-20 03:09:51 shown 6627ms 4 NS 1 A 3 MX 🔒 Secure
2026-06-16 22:26:56 2701ms 4 NS 1 A 3 MX 🔒 Secure
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