SurfaceMap › z › zilverenkruis.nl

zilverenkruis.nl

Checked 2026-10-21 21:27 UTC · first added 2026-10-21

!Check could not complete

Domain & DNS

error

27 passed 0 warn 0 failed 1 errors

lookups failed for rdap; results are incomplete

Areas

iRegistration iDelegation iNameservers ✓SOA ✓DNSSEC iRecords

Recent checks

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Full report

Domain & DNS report for zilverenkruis.nl ›

Mail

warn

29 passed 3 warn 0 failed

Areas

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

Problems

!

Single MX host, no backup

MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.

#12
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1024-bit DKIM key

DKIM · 1024-bit RSA keys are the minimum and are considered weak today: s2 (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 zilverenkruis.nl ›