SurfaceMap › h › hs-kl.de

hs-kl.de

Checked 2026-10-21 22:51 UTC · first added 2026-10-21
✗Problems found Score 63 of 100

Domain & DNS

warn

20 passed 4 warn 0 failed

Areas

iRegistration !Delegation !Nameservers !SOA !DNSSEC iRecords

Problems

  • !
    NS sets differ
    Delegation · The nameservers at the parent and in the zone should be the same. Only in the zone: ns1.hs-kl.de, ns1.key-systems.net, ns2.hs-kl.de, ns2.key-systems.net, ns3.key-systems.net. ns1.domaindiscount24.net, ns1.hs-kl.de, ns1.key-systems.net, ns2.domaindiscount24.net, ns2.hs-kl.de, ns2.key-systems.net, ns3.domaindiscount24.net, ns3.key-systems.net report NS ns1.domaindiscount24.net ns1.hs-kl.de ns1.key-systems.net ns2.domaindiscount24.net ns2.hs-kl.de ns2.key-systems.net ns3.domaindiscount24.net ns3.key-systems.net.
    #7
  • !
    Software version disclosed
    Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns1.hs-kl.de: "9.20.29-1+ubuntu22.04.1+deb.sury.org+1-Ubuntu"; ns2.hs-kl.de: "9.20.29-1+ubuntu22.04.1+deb.sury.org+1-Ubuntu". Hide or replace the version string.
    #17
  • !
    Unusual SOA timers
    SOA · retry 1h should be shorter than refresh 1h; expire 1h is shorter than 7d; secondaries stop answering too soon when the primary is down; expire 1h must be longer than refresh + retry. Current values: refresh 1h, retry 1h, expire 1h, negative TTL 15m.
    #23
  • !
    Not signed
    DNSSEC · The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Recent checks

!

Full report

Domain & DNS report for hs-kl.de ›

Mail

fail

15 passed 5 warn 1 failed

Areas

✓SPF ✗DMARC !DKIM !DNSSEC !MX !TLS iBIMI

Problems

  • ✗
    No DMARC record
    DMARC · No DMARC record was found for this domain. DMARC is essential for preventing email spoofing. Add a DMARC record with p=reject or at least p=quarantine.
    #5
  • !
    No key under common selectors
    DKIM · The _domainkey name exists but no DKIM key was found under the common selectors. Selectors are provider-specific; check yours with -selector.
    #7
  • !
    Not enabled
    DNSSEC · DNSSEC is not enabled for this domain. Consider enabling DNSSEC to protect against DNS spoofing attacks.
    #8
  • !
    Hosts without IP addresses
    MX · The following MX hosts could not be resolved to IP addresses: mailgate-4.zdv.net
    #10
  • !
    Hosts without IPv6
    MX · The following MX hosts could not be resolved to IPv6 addresses: mailgate-4.zdv.net
    #11
  • !
    Not configured
    TLS · MTA-STS is not configured, so other mail servers fall back to unencrypted delivery when TLS fails or is stripped by an attacker. Publish a _mta-sts TXT record and a policy at https://mta-sts.<domain>/.well-known/mta-sts.txt.
    #32

Recent checks

✗

Full report

Mail report for hs-kl.de ›