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skgz.nl

Checked 2026-10-22 15:51 UTC · first added 2026-10-21

!Check could not complete

Domain & DNS

error

25 passed 1 warn 1 failed 1 errors

lookups failed for rdap; results are incomplete

Areas

iRegistration iDelegation iNameservers ✗SOA !DNSSEC iRecords

Problems

✗

Invalid contact address

SOA · The SOA RNAME "hostmaster\\@argeweb.nl" contains an @; it must be written with a dot instead (hostmaster.example.com).

#25
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NSEC3 with extra iterations or salt

DNSSEC · NSEC3 uses 1 iteration and a 1-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 skgz.nl ›

Mail

warn

23 passed 6 warn 0 failed

Areas

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

Problems

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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
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Hosts without IPv6

MX · The following MX hosts could not be resolved to IPv6 addresses: de-smtp-inbound-1.mimecast.com, de-smtp-inbound-2.mimecast.com

#11
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Applies to 1% of mail

DMARC · DMARC policy only applies to 1% of failing mail (pct=1). Raise pct to 100 once you are confident in your setup.

#18
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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
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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
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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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Full report

Mail report for skgz.nl ›