SurfaceMap › c › consuwijzer.nl

consuwijzer.nl

Checked 2026-10-21 21:00 UTC · first added 2026-10-21

✗Problems found Score 69 of 100

Domain & DNS

warn

27 passed 1 warn 0 failed

Areas

iRegistration iDelegation ✓Nameservers ✓SOA !DNSSEC iRecords

Problems

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NSEC3 with extra iterations or salt

DNSSEC · NSEC3 uses 10 iterations and a 5-byte salt. RFC 9276 recommends 0 iterations and no salt: extra iterations cost resolvers CPU and add no real protection, and some validators treat high counts as insecure.

#31

Recent checks

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Full report

Domain & DNS report for consuwijzer.nl ›

Mail

fail

21 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
!

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
!

Hosts without IPv6

MX · The following MX hosts could not be resolved to IPv6 addresses: mail.acm.nl

#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
!

Signatures expire in 72h0m0s

DNSSEC · DNSKEY signatures expire at 2026-10-24T21:10:07Z (in 72h0m0s). Check that re-signing works.

#21
!

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
!

Not configured

TLS · MTA-STS or DANE is used without TLS-RPT, so you get no reports when senders fail to deliver because of TLS problems. Publish _smtp._tls TXT "v=TLSRPTv1; rua=mailto:...".

#35

Recent checks

✗

Full report

Mail report for consuwijzer.nl ›