SurfaceMap › l › ltd.com

ltd.com

Checked 2026-10-22 09:41 UTC · first added 2026-10-21
✗Problems found Score 46 of 100

Domain & DNS

fail

20 passed 3 warn 1 failed

Areas

iRegistration iDelegation ✗Nameservers !SOA !DNSSEC iRecords

Problems

  • ✗
    Nameservers not responding
    Nameservers · These addresses did not answer, so resolvers waste time on timeouts: ns1.alidns.com (39.96.153.55): read udp 46.225.38.91:58634->39.96.153.55:53: i/o timeout; ns2.alidns.com (39.96.153.56): read udp 46.225.38.91:59288->39.96.153.56:53: i/o timeout.
    #14
  • !
    Serials differ
    SOA · The nameservers serve different versions of the zone: 2025070216 on ns1.alidns.com (139.224.142.115), ns2.alidns.com (139.224.142.126); 2026081813 on ns1.alidns.com (120.76.107.55); 2026082616 on ns1.alidns.com (39.96.153.45), ns1.alidns.com (47.118.199.205), ns1.alidns.com (47.118.199.215), ns1.alidns.com (139.224.142.125), ns1.alidns.com (120.76.107.45), ns1.alidns.com (2408:4009:501::1), ns2.alidns.com (47.118.199.206), ns2.alidns.com (120.76.107.46); 2026082617 on ns2.alidns.com (120.76.107.56), ns2.alidns.com (39.96.153.46), ns2.alidns.com (47.118.199.216), ns2.alidns.com (2408:4009:501::2); 2026082709 on ns2.alidns.com (139.224.142.116). 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
  • !
    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 ltd.com ›

Mail

fail

7 passed 5 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 SPF record
    SPF · No SPF record was found for this domain. SPF is important for preventing email spoofing. Add an SPF record to specify which servers are authorized to send email for your domain.
    #6
  • !
    No key under common selectors
    DKIM · The _domainkey name exists but no DKIM key was found under the common selectors. Selectors are provider-specific; check yours with -selector.
    #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: mxbiz1.qq.com, mxbiz2.qq.com
    #11
  • !
    Addresses without reverse DNS
    MX · These MX addresses have no PTR record, which many receivers treat as a spam signal: 103.86.78.3 (mxbiz1.qq.com), 103.86.78.2 (mxbiz1.qq.com), 43.154.252.16 (mxbiz2.qq.com), 43.154.252.202 (mxbiz2.qq.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 ltd.com ›