SurfaceMap › 4 › 4en5mei.nl

4en5mei.nl

Checked 2026-10-21 20:45 UTC · first added 2026-10-21

✗Problems found Score 65 of 100

Domain & DNS

warn

28 passed 2 warn 0 failed

Areas

iRegistration iDelegation ✓Nameservers ✓SOA !DNSSEC !Records

Problems

!

NSEC3 with extra iterations or salt

DNSSEC · NSEC3 uses 0 iterations and a 8-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
!

Very low TTLs

Records · These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), AAAA (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1h and in the zone 1d; resolvers may use either.

#32

Recent checks

!

Full report

Domain & DNS report for 4en5mei.nl ›

Mail

fail

23 passed 3 warn 2 failed

Areas

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

Problems

✗

11 DNS lookups, over the limit of 10

SPF · SPF record needs 11 DNS lookups (including nested includes), more than the limit of 10. Receivers will return a permerror; reduce includes or flatten the record.

#2
✗

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
!

Hosts without IPv6

MX · The following MX hosts could not be resolved to IPv6 addresses: d322854.b.ess.de.barracudanetworks.com, d322854.a.ess.de.barracudanetworks.com

#11
!

1024-bit DKIM key

DKIM · 1024-bit RSA keys are the minimum and are considered weak today: k1 (1024 bits), selector2 (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

✗

Full report

Mail report for 4en5mei.nl ›