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aup.nl

Checked 2026-10-21 20:45 UTC · first added 2026-10-21
✗Problems found Score 69 of 100

Domain & DNS

fail

23 passed 2 warn 1 failed

Areas

iRegistration iDelegation ✗Nameservers ✓SOA !DNSSEC iRecords

Problems

  • ✗
    Nameservers not responding
    Nameservers · These addresses did not answer, so resolvers waste time on timeouts: ns2.dehostingfirma.com (2001:7b8:661:0:213:136:15:238): read udp [2a01:4f8:1c1c:eebf::1]:50432->[2001:7b8:661:0:213:136:15:238]:53: i/o timeout.
    #14
  • !
    Software version disclosed
    Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns1.dehostingfirma.eu: "PowerDNS Authoritative Server 4.9.15 (built May 11 2026 09:24:32 by root@localhost)"; ns2.dehostingfirma.com: "PowerDNS Authoritative Server 4.9.16 (built Jun 10 2026 13:13:37 by root@localhost)"; ns3.dehostingfirma.org: "PowerDNS Authoritative Server 4.9.16 (built Jun 10 2026 13:13:37 by root@localhost)". Hide or replace the version string.
    #17
  • !
    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 aup.nl ›

Mail

warn

24 passed 5 warn 0 failed

Areas

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

Problems

  • !
    Not enabled
    DNSSEC · DNSSEC is not enabled for this domain. Consider enabling DNSSEC to protect against DNS spoofing attacks.
    #8
  • !
    Single MX host, no backup
    MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.
    #12
  • !
    1024-bit DKIM key
    DKIM · 1024-bit RSA keys are the minimum and are considered weak today: k1 (1024 bits), selector1 (1024 bits). Rotate to a 2048-bit key.
    #23
  • !
    Report address not authorized
    DMARC · These report addresses are in another domain that has not agreed to receive your reports, so receivers will not send them: mailto:dmarc@anandan.nl (needs aup.nl._report._dmarc.anandan.nl). Ask the report provider to publish the record, or check the address.
    #29
  • !
    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 aup.nl ›