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ncr.com

Checked 2026-10-22 10:01 UTC · first added 2026-10-21
✗Problems found Score 72 of 100

Domain & DNS

fail

24 passed 2 warn 1 failed

Areas

iRegistration !Delegation ✗Nameservers ✓SOA !DNSSEC iRecords

Problems

  • ✗
    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: dbru.br.ns.els-gms.att.net (2001:1890:1ff:9f0:68:94:156:134): read tcp [2a01:4f8:1c1c:eebf::1]:36498->[2001:1890:1ff:9f0:68:94:156:134]:53: read: connection reset by peer; dmtu.mt.ns.els-gms.att.net (2001:1890:1ff:9f1:99:99:99:134): read tcp [2a01:4f8:1c1c:eebf::1]:56690->[2001:1890:1ff:9f1:99:99:99:134]:53: read: connection reset by peer.
    #19
  • !
    NS sets differ
    Delegation · The nameservers at the parent and in the zone should be the same. Only in the zone: ncrns11.ncr.com. dbru.br.ns.els-gms.att.net, dmtu.mt.ns.els-gms.att.net, ncrns1.ncr.com, ncrns11.ncr.com report NS dbru.br.ns.els-gms.att.net dmtu.mt.ns.els-gms.att.net ncrns1.ncr.com ncrns11.ncr.com.
    #7
  • !
    Not signed
    DNSSEC · The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Recent checks

✗

Full report

Domain & DNS report for ncr.com ›

Mail

warn

25 passed 4 warn 0 failed

Areas

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

Problems

  • !
    Not enabled
    DNSSEC · DNSSEC is not enabled for this domain. Consider enabling DNSSEC to protect against DNS spoofing attacks.
    #8
  • !
    Hosts without IPv6
    MX · The following MX hosts could not be resolved to IPv6 addresses: mxa-00209e01.gslb.pphosted.com, mxb-00209e01.gslb.pphosted.com
    #11
  • !
    1024-bit DKIM key
    DKIM · 1024-bit RSA keys are the minimum and are considered weak today: k1 (1024 bits), s2 (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 ncr.com ›