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techleap.nl

Checked 2026-10-22 16:30 UTC · first added 2026-10-21
!Check could not complete

Domain & DNS

error

21 passed 3 warn 0 failed 1 errors

lookups failed for rdap; results are incomplete

Areas

iRegistration !Delegation iNameservers ✓SOA !DNSSEC iRecords

Problems

  • !
    Glue differs from the zone
    Delegation · The addresses at the parent (glue) differ from the addresses in the zone: ns1.techleapsrv01.nl (glue 5.22.210.102, zone 5.22.210.102, 2a04:3544:1000:1510:8478:baff:fe90:4b12); ns2.techleapsrv01.nl (glue 5.22.210.56, zone 5.22.210.102, 2a04:3544:1000:1510:8478:baff:fe90:4b12). Update the glue at your registrar.
    #8
  • !
    Nameservers in one network
    Delegation · all IPv4 addresses are in 5.22.210.0/24; all IPv6 addresses are in 2a04:3544:1000::/48. A single network failure takes all nameservers down; RFC 2182 recommends topologically separate networks (anycast setups are an exception).
    #10
  • !
    Signed but not delegated securely
    DNSSEC · The zone is signed but the parent has no DS record, so the signatures are not used. Publish the DS record at your registrar.
    #27

Recent checks

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Full report

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Mail

warn

24 passed 5 warn 0 failed

Areas

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

Problems

  • !
    Policy: quarantine
    DMARC · DMARC policy is set to 'quarantine'. Consider upgrading to 'reject' for stronger protection once you've verified legitimate emails are passing authentication.
    #4
  • !
    Signed, but no DS at parent
    DNSSEC · The zone is signed (DNSKEY present) but the parent has no DS record, so the chain of trust is incomplete. Publish the DS record at your registrar.
    #8
  • !
    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: k1 (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

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