SurfaceMap › k › kentalis.nl

kentalis.nl

Checked 2026-10-22 14:02 UTC · first added 2026-10-21
!Check could not complete

Domain & DNS

error

20 passed 0 warn 2 failed 2 errors

lookups failed for dnssec, records; results are incomplete

Areas

iRegistration ✓Delegation ✗Nameservers ✓SOA iDNSSEC iRecords

Problems

  • ✗
    Nameservers not responding
    Nameservers · These addresses did not answer, so resolvers waste time on timeouts: ns.internlnet.nl (31.3.105.132): read udp 46.225.38.91:47117->31.3.105.132:53: i/o timeout.
    #14
  • ✗
    No DNS over TCP
    Nameservers · DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: ns.internlnet.nl (2a03:7900:105:31:3:105:138:1): dial tcp [2a03:7900:105:31:3:105:138:1]:53: i/o timeout; ns3.internl.net (77.95.248.203): read tcp 46.225.38.91:40794->77.95.248.203:53: read: connection reset by peer; ns3.internl.net (2a00:1478:20:6:4:862:0:1): read tcp [2a01:4f8:1c1c:eebf::1]:34390->[2a00:1478:20:6:4:862:0:1]:53: read: connection reset by peer; ns4.internl.net (85.119.243.17): read tcp 46.225.38.91:33838->85.119.243.17:53: read: connection reset by peer; ns4.internl.net (2a00:e760:100:0:f:1247:0:1): read tcp [2a01:4f8:1c1c:eebf::1]:52744->[2a00:e760:100:0:f:1247:0:1]:53: read: connection reset by peer.
    #19

Recent checks

!

Full report

Domain & DNS report for kentalis.nl ›

Mail

fail

24 passed 5 warn 1 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: 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
  • !
    Single MX host, no backup
    MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.
    #12
  • !
    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
  • !
    1024-bit DKIM key
    DKIM · 1024-bit RSA keys are the minimum and are considered weak today: mail (1024 bits), selector1 (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 kentalis.nl ›