SurfaceMap › d › dehaagsehogeschool.nl

dehaagsehogeschool.nl

Checked 2026-10-21 21:00 UTC · first added 2026-10-21
!Check could not complete

Domain & DNS

error

24 passed 2 warn 0 failed 1 errors

lookups failed for rdap; results are incomplete

Areas

iRegistration iDelegation iNameservers iSOA !DNSSEC !Records

Problems

  • !
    NSEC3 with extra iterations or salt
    DNSSEC · NSEC3 uses 10 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). Low TTLs are useful just before a planned change.
    #32

Recent checks

!

Full report

Domain & DNS report for dehaagsehogeschool.nl ›

Mail

fail

12 passed 4 warn 1 failed

Areas

✓SPF ✗DMARC !DKIM !DNSSEC !MX 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
  • !
    No MX records
    MX · No MX records found. If this domain is used for email, add MX records to specify mail servers. If it never receives mail, publish a null MX ("MX 0 .").
    #9
  • !
    Signatures expire in 87h0m0s
    DNSSEC · DNSKEY signatures expire at 2026-10-25T12:19:19Z (in 87h0m0s). Check that re-signing works.
    #21
  • !
    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-a@student.hhs.nl (needs dehaagsehogeschool.nl._report._dmarc.student.hhs.nl); mailto:dmarc-f@student.hhs.nl (needs dehaagsehogeschool.nl._report._dmarc.student.hhs.nl). Ask the report provider to publish the record, or check the address.
    #29

Recent checks

✗

Full report

Mail report for dehaagsehogeschool.nl ›