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zhihuiweishi.com

Checked 2026-10-22 11:43 UTC · first added 2026-10-21
!Check could not complete

Domain & DNS

error

20 passed 2 warn 1 failed 1 errors

lookups failed for dnssec; results are incomplete

Areas

iRegistration iDelegation ✗Nameservers !SOA iDNSSEC iRecords

Problems

  • ✗
    Nameservers not responding
    Nameservers · These addresses did not answer, so resolvers waste time on timeouts: dns18.hichina.com (120.76.107.38): read udp 46.225.38.91:35739->120.76.107.38:53: i/o timeout.
    #14
  • !
    Serials differ
    SOA · The nameservers serve different versions of the zone: 2020051512 on dns17.hichina.com (139.224.142.110), dns17.hichina.com (139.224.142.100), dns18.hichina.com (139.224.142.98); 2026081813 on dns17.hichina.com (120.76.107.60), dns17.hichina.com (2408:4009:501::25), dns18.hichina.com (120.76.107.61); 2026082509 on dns17.hichina.com (120.76.107.40), dns18.hichina.com (2408:4009:501::26); 2026082616 on dns17.hichina.com (39.96.153.40), dns17.hichina.com (39.96.153.60), dns18.hichina.com (39.96.153.61), dns18.hichina.com (39.96.153.38), dns18.hichina.com (47.118.199.222), dns18.hichina.com (139.224.142.108); 2026082617 on dns17.hichina.com (47.118.199.200); 2026082815 on dns17.hichina.com (47.118.199.220), dns18.hichina.com (47.118.199.198). This is normal for a few minutes after a change; if it lasts, zone transfers to the secondaries are failing.
    #22
  • !
    Unusual SOA timers
    SOA · expire 1d is shorter than 7d; secondaries stop answering too soon when the primary is down. Current values: refresh 1h, retry 20m, expire 1d, negative TTL 10m.
    #23

Recent checks

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Full report

Domain & DNS report for zhihuiweishi.com ›

Mail

fail

15 passed 4 warn 2 failed

Areas

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

Problems

  • ✗
    No DMARC record
    DMARC · No DMARC record was found for this domain. DMARC is essential for preventing email spoofing. Add a DMARC record with p=reject or at least p=quarantine.
    #5
  • ✗
    No DKIM keys published
    DKIM · _domainkey.zhihuiweishi.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: mx1.qiye.aliyun.com, mx2.qiye.aliyun.com, mx3.qiye.aliyun.com
    #11
  • !
    Addresses without reverse DNS
    MX · These MX addresses have no PTR record, which many receivers treat as a spam signal: 47.246.167.188 (mx1.qiye.aliyun.com), 47.246.146.255 (mx2.qiye.aliyun.com), 47.246.137.47 (mx3.qiye.aliyun.com). Ask your hosting provider to set one.
    #30
  • !
    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 zhihuiweishi.com ›