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yfmac.com

Checked 2026-10-22 11:40 UTC · first added 2026-10-21
✗Problems found Score 59 of 100

Domain & DNS

warn

22 passed 4 warn 0 failed

Areas

iRegistration !Delegation !Nameservers !SOA !DNSSEC iRecords

Problems

  • !
    Glue differs from the zone
    Delegation · The addresses at the parent (glue) differ from the addresses in the zone: ns19.xincache.com (glue 1.12.0.4, 112.80.181.45, 117.89.178.173, 129.211.176.209, 2402:4e00:1470:2::e, 36.155.149.180, zone 129.211.176.209, 36.155.149.180, 125.94.59.210, 117.89.178.173, 112.80.181.45, 1.12.0.4, 2402:4e00:1470:2::e, 2402:4e00:1730::e); ns20.xincache.com (glue 1.12.0.1, 112.80.181.111, 117.89.178.184, 129.211.176.239, 2402:4e00:111:fff::c, 36.155.149.176, zone 112.80.181.111, 117.89.178.184, 163.177.5.23, 36.155.149.176, 1.12.0.1, 129.211.176.239, 2402:4e00:111:fff::c). Update the glue at your registrar.
    #8
  • !
    Software version disclosed
    Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns19.xincache.com: "DNSPod AUTHORITY DNS 7.3.2512.01"; ns20.xincache.com: "DNSPod AUTHORITY DNS 7.3.2512.01". Hide or replace the version string.
    #17
  • !
    Unusual SOA timers
    SOA · negative caching TTL (minimum) 3m is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 1h, retry 3m, expire 14d, negative TTL 3m.
    #23
  • !
    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 yfmac.com ›

Mail

fail

20 passed 3 warn 2 failed

Areas

✓SPF ✗DMARC ✗DKIM !DNSSEC !MX !TLS 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 DKIM keys published
    DKIM · _domainkey.yfmac.com does not exist (NXDOMAIN), so no DKIM keys are published. DKIM helps prevent email spoofing. Configure DKIM with your email service provider.
    #7
  • !
    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: qiye163mx01.mxmail.netease.com, qiye163mx02.mxmail.netease.com
    #11
  • !
    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 yfmac.com ›