SurfaceMap › s › sportvisserijnederland.nl

sportvisserijnederland.nl

Checked 2026-10-22 16:11 UTC · first added 2026-10-21
!Check could not complete

Domain & DNS

error

21 passed 4 warn 1 failed 1 errors

lookups failed for rdap; results are incomplete

Areas

iRegistration iDelegation ✗Nameservers !SOA iDNSSEC !Records

Problems

  • ✗
    Nameservers not responding
    Nameservers · These addresses did not answer, so resolvers waste time on timeouts: ns4.philipse-it.nl (2a01:7c8:bb0a:6de:5054:ff:fe2f:c3f3): read udp [2a01:4f8:1c1c:eebf::1]:39362->[2a01:7c8:bb0a:6de:5054:ff:fe2f:c3f3]:53: read: permission denied.
    #14
  • !
    Software version disclosed
    Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns1.openprovider.nl: "2026.10.8". Hide or replace the version string.
    #17
  • !
    Serials differ
    SOA · The nameservers serve different versions of the zone: 2026080794 on ns1.openprovider.nl (162.159.26.10), ns1.openprovider.nl (2400:cb00:2049:1::a29f:1a0a); 2026080795 on ns4.philipse-it.nl (93.119.1.180). This is normal for a few minutes after a change; if it lasts, zone transfers to the secondaries are failing.
    #22
  • !
    Unusual SOA timers
    SOA · refresh 5m is outside 20m–1d; retry 15m should be shorter than refresh 5m. Current values: refresh 5m, retry 15m, expire 14d, negative TTL 15m.
    #23
  • !
    Very low TTLs
    Records · These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), MX (1m), NS (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1h and in the zone 1m; resolvers may use either.
    #32

Recent checks

!

Full report

Domain & DNS report for sportvisserijnederland.nl ›

Mail

fail

22 passed 4 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
  • !
    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
  • !
    1024-bit DKIM key
    DKIM · 1024-bit RSA keys are the minimum and are considered weak today: selector2 (1024 bits). Rotate to a 2048-bit key.
    #23
  • !
    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 sportvisserijnederland.nl ›