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sohu.com

Checked 2026-10-22 10:45 UTC · first added 2026-10-21
!Check could not complete

Domain & DNS

error

22 passed 2 warn 1 failed 1 errors

lookups failed for dnssec; 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: ns12.sohu.com (49.234.52.149): read udp 46.225.38.91:57533->49.234.52.149:53: i/o timeout.
    #14
  • !
    Glue differs from the zone
    Delegation · The addresses at the parent (glue) differ from the addresses in the zone: ns12.sohu.com (glue 2402:4e00:4020:3000::80, 49.234.52.149, zone 110.43.83.56, 49.234.52.149, 2402:4e00:4020:3000::80); ns13.sohu.com (glue 122.9.117.121, zone 122.9.117.121, 125.254.168.150). Update the glue at your registrar.
    #8
  • !
    Unusual SOA timers
    SOA · negative caching TTL (minimum) 1m is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 8h, retry 2h, expire 14d, negative TTL 1m.
    #23

Recent checks

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Full report

Domain & DNS report for sohu.com ›

Mail

warn

23 passed 6 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: sohumx1.sohu.com, sohumx2.sohu.com, sohumx.h.a.sohu.com
    #11
  • !
    Hosts are CNAMEs
    MX · MX records must point to a host name with A/AAAA records, not to a CNAME: sohumx1.sohu.com -> sohumx1.sohu.com.o.sohu.com
    #22
  • !
    1024-bit DKIM key
    DKIM · 1024-bit RSA keys are the minimum and are considered weak today: default (1024 bits), mail (1024 bits). Rotate to a 2048-bit key.
    #23
  • !
    Addresses without reverse DNS
    MX · These MX addresses have no PTR record, which many receivers treat as a spam signal: 211.100.53.108 (sohumx1.sohu.com), 116.130.217.50 (sohumx2.sohu.com), 116.130.217.50 (sohumx.h.a.sohu.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

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Full report

Mail report for sohu.com ›