SurfaceMap › v › vhs-lernportal.de

vhs-lernportal.de

Checked 2026-10-22 00:51 UTC · first added 2026-10-21
✗Problems found Score 53 of 100

Domain & DNS

fail

19 passed 3 warn 1 failed

Areas

iRegistration iDelegation ✗Nameservers !SOA !DNSSEC iRecords

Problems

  • ✗
    No DNS over TCP
    Nameservers · DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: ns.diginame.de (62.96.182.3): read tcp 46.225.38.91:54388->62.96.182.3:53: read: connection reset by peer.
    #19
  • !
    No EDNS
    Nameservers · These nameservers don't support EDNS(0), needed for DNSSEC and answers larger than 512 bytes: ns.diginame.de (62.96.182.3).
    #20
  • !
    Unusual SOA timers
    SOA · retry 1h should be shorter than refresh 1h; negative caching TTL (minimum) 3m20s is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 1h, retry 1h, expire 291h16m17s, negative TTL 3m20s.
    #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 vhs-lernportal.de ›

Mail

fail

19 passed 6 warn 1 failed

Areas

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

Problems

  • ✗
    Policy: none (monitoring only)
    DMARC · DMARC policy is set to 'none', which only monitors but doesn't protect against spoofing. Consider upgrading to 'quarantine' or ideally 'reject'.
    #4
  • !
    Ends with ?all (neutral)
    SPF · SPF record uses ?all (neutral), which gives no protection against unauthorized senders. Use -all or ~all instead.
    #3
  • !
    Not enabled
    DNSSEC · DNSSEC is not enabled for this domain. Consider enabling DNSSEC to protect against DNS spoofing attacks.
    #8
  • !
    Hosts without IPv6
    MX · The following MX hosts could not be resolved to IPv6 addresses: mailwall.bringe.digionline.de
    #11
  • !
    Single MX host, no backup
    MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.
    #12
  • !
    No aggregate reports (rua)
    DMARC · DMARC record has no rua tag, so you receive no aggregate reports about who sends mail as your domain. Add rua=mailto:...
    #19
  • !
    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 vhs-lernportal.de ›