{ "ok": true, "domain": "81.cn", "generated_at": "2026-08-10T00:36:00-05:00", "cache": { "hit": true, "ttl": 0 }, "score": { "total": 64, "label": "Fair", "categories": { "dns": 85, "mail": 20, "security": 65, "network": 70, "availability": 80 }, "category_weights": { "dns": 25, "mail": 20, "security": 25, "network": 10, "availability": 20 }, "items": [ { "category": "dns", "title": "IPv4 (A)", "max_points": 30, "earned_points": 30, "lost_points": 0, "detail": "3 IPv4 address(es) detected." }, { "category": "dns", "title": "IPv6 (AAAA)", "max_points": 10, "earned_points": 10, "lost_points": 0, "detail": "9 IPv6 address(es) detected." }, { "category": "dns", "title": "Name server redundancy", "max_points": 20, "earned_points": 20, "lost_points": 0, "detail": "5 NS record(s); 2 or more required." }, { "category": "dns", "title": "SOA record", "max_points": 10, "earned_points": 10, "lost_points": 0, "detail": "Authoritative zone record." }, { "category": "dns", "title": "DNSSEC chain", "max_points": 15, "earned_points": 0, "lost_points": 15, "detail": "Both DS and DNSKEY are required." }, { "category": "dns", "title": "CAA policy", "max_points": 5, "earned_points": 5, "lost_points": 0, "detail": "Certificate authority restriction." }, { "category": "dns", "title": "DNS propagation", "max_points": 10, "earned_points": 10, "lost_points": 0, "detail": "Agreement between public resolvers." }, { "category": "mail", "title": "MX records", "max_points": 20, "earned_points": 20, "lost_points": 0, "detail": "1 MX record(s)." }, { "category": "mail", "title": "SPF", "max_points": 25, "earned_points": 0, "lost_points": 25, "detail": "SPF policy not found." }, { "category": "mail", "title": "DMARC", "max_points": 25, "earned_points": 0, "lost_points": 25, "detail": "DMARC policy not found." }, { "category": "mail", "title": "DKIM", "max_points": 20, "earned_points": 0, "lost_points": 20, "detail": "No tested DKIM selector responded." }, { "category": "mail", "title": "MTA-STS", "max_points": 5, "earned_points": 0, "lost_points": 5, "detail": "Mail transport policy." }, { "category": "mail", "title": "TLS-RPT", "max_points": 5, "earned_points": 0, "lost_points": 5, "detail": "TLS reporting policy." }, { "category": "security", "title": "Valid TLS certificate", "max_points": 55, "earned_points": 55, "lost_points": 0, "detail": "222 day(s) remaining." }, { "category": "security", "title": "Certificate lifetime", "max_points": 10, "earned_points": 10, "lost_points": 0, "detail": "Full points require at least 30 days remaining." }, { "category": "security", "title": "HTTP security headers", "max_points": 35, "earned_points": 0, "lost_points": 35, "detail": "0 of 9 evaluated headers detected." }, { "category": "network", "title": "PTR reverse DNS", "max_points": 30, "earned_points": 0, "lost_points": 30, "detail": "PTR not detected." }, { "category": "network", "title": "IPv4 diversity", "max_points": 35, "earned_points": 35, "lost_points": 0, "detail": "Two or more IPv4 addresses receive full points." }, { "category": "network", "title": "IPv6 connectivity", "max_points": 35, "earned_points": 35, "lost_points": 0, "detail": "AAAA availability." }, { "category": "availability", "title": "DNS resolution", "max_points": 40, "earned_points": 40, "lost_points": 0, "detail": "At least one address family must resolve." }, { "category": "availability", "title": "HTTP response", "max_points": 40, "earned_points": 40, "lost_points": 0, "detail": "HTTP/1.1 200 OK" }, { "category": "availability", "title": "HTTPS final URL", "max_points": 20, "earned_points": 0, "lost_points": 20, "detail": "Final URL is not HTTPS." } ], "methodology": "Each category is normalized to 100. The total is the weighted sum: DNS 25%, Email 20%, Security 25%, Network 10%, Availability 20%.", "diagnostics": [ { "level": "ok", "title": "IPv4 (A)", "detail": "3 IPv4 address(es) detected.", "category": "dns", "max_points": 30, "earned_points": 30, "lost_points": 0 }, { "level": "ok", "title": "IPv6 (AAAA)", "detail": "9 IPv6 address(es) detected.", "category": "dns", "max_points": 10, "earned_points": 10, "lost_points": 0 }, { "level": "ok", "title": "Name server redundancy", "detail": "5 NS record(s); 2 or more required.", "category": "dns", "max_points": 20, "earned_points": 20, "lost_points": 0 }, { "level": "ok", "title": "SOA record", "detail": "Authoritative zone record.", "category": "dns", "max_points": 10, "earned_points": 10, "lost_points": 0 }, { "level": "error", "title": "DNSSEC chain", "detail": "Both DS and DNSKEY are required.", "category": "dns", "max_points": 15, "earned_points": 0, "lost_points": 15 }, { "level": "ok", "title": "CAA policy", "detail": "Certificate authority restriction.", "category": "dns", "max_points": 5, "earned_points": 5, "lost_points": 0 }, { "level": "ok", "title": "DNS propagation", "detail": "Agreement between public resolvers.", "category": "dns", "max_points": 10, "earned_points": 10, "lost_points": 0 }, { "level": "ok", "title": "MX records", "detail": "1 MX record(s).", "category": "mail", "max_points": 20, "earned_points": 20, "lost_points": 0 }, { "level": "error", "title": "SPF", "detail": "SPF policy not found.", "category": "mail", "max_points": 25, "earned_points": 0, "lost_points": 25 }, { "level": "error", "title": "DMARC", "detail": "DMARC policy not found.", "category": "mail", "max_points": 25, "earned_points": 0, "lost_points": 25 }, { "level": "error", "title": "DKIM", "detail": "No tested DKIM selector responded.", "category": "mail", "max_points": 20, "earned_points": 0, "lost_points": 20 }, { "level": "error", "title": "MTA-STS", "detail": "Mail transport policy.", "category": "mail", "max_points": 5, "earned_points": 0, "lost_points": 5 }, { "level": "error", "title": "TLS-RPT", "detail": "TLS reporting policy.", "category": "mail", "max_points": 5, "earned_points": 0, "lost_points": 5 }, { "level": "ok", "title": "Valid TLS certificate", "detail": "222 day(s) remaining.", "category": "security", "max_points": 55, "earned_points": 55, "lost_points": 0 }, { "level": "ok", "title": "Certificate lifetime", "detail": "Full points require at least 30 days remaining.", "category": "security", "max_points": 10, "earned_points": 10, "lost_points": 0 }, { "level": "error", "title": "HTTP security headers", "detail": "0 of 9 evaluated headers detected.", "category": "security", "max_points": 35, "earned_points": 0, "lost_points": 35 }, { "level": "error", "title": "PTR reverse DNS", "detail": "PTR not detected.", "category": "network", "max_points": 30, "earned_points": 0, "lost_points": 30 }, { "level": "ok", "title": "IPv4 diversity", "detail": "Two or more IPv4 addresses receive full points.", "category": "network", "max_points": 35, "earned_points": 35, "lost_points": 0 }, { "level": "ok", "title": "IPv6 connectivity", "detail": "AAAA availability.", "category": "network", "max_points": 35, "earned_points": 35, "lost_points": 0 }, { "level": "ok", "title": "DNS resolution", "detail": "At least one address family must resolve.", "category": "availability", "max_points": 40, "earned_points": 40, "lost_points": 0 }, { "level": "ok", "title": "HTTP response", "detail": "HTTP/1.1 200 OK", "category": "availability", "max_points": 40, "earned_points": 40, "lost_points": 0 }, { "level": "error", "title": "HTTPS final URL", "detail": "Final URL is not HTTPS.", "category": "availability", "max_points": 20, "earned_points": 0, "lost_points": 20 } ] }, "dns": { "records": { "A": [ "81.cn.eo.dnse0.com.", "222.94.225.121", "114.230.198.187", "119.188.219.52" ], "AAAA": [ "81.cn.eo.dnse0.com.", "2408:8766:0:101c:40::3b", "2408:8738:b000:1c:6a::", "2408:8744:d05:12::84", "2408:8764:22:1f:70::16", "2408:876c:1780:122:68::", "2408:8720:806:300:70::19", "2408:876a:1000:22:37::3", "2408:874f:3001:310:5e::16", "2408:873c:7016:0:5e::16" ], "CNAME": [], "MX": [ "81.cn.eo.dnse0.com." ], "TXT": [], "NS": [ "ns3.cdns.cn.", "ns4.cgw.cn.", "ns2.cdns.cn.", "ns3.cgw.cn.", "ns1.cdns.cn." ], "SOA": [ "ns1.cdns.cn. mail.cnnic.cn. 366 3600 600 2419200 800" ], "CAA": [ "81.cn.eo.dnse0.com." ], "DS": [], "DNSKEY": [ ";; communications error to 69.64.44.20#53: timed out" ], "RRSIG": [ ";; communications error to 69.64.44.20#53: timed out" ], "NSEC": [], "NSEC3": [ "81.cn.eo.dnse0.com." ], "SRV": [], "NAPTR": [ "81.cn.eo.dnse0.com." ], "TLSA": [ "81.cn.eo.dnse0.com." ], "SSHFP": [ "81.cn.eo.dnse0.com." ] }, "ipv4": [ "222.94.225.121", "114.230.198.187", "119.188.219.52" ], "ipv6": [ "2408:8766:0:101c:40::3b", "2408:8738:b000:1c:6a::", "2408:8744:d05:12::84", "2408:8764:22:1f:70::16", "2408:876c:1780:122:68::", "2408:8720:806:300:70::19", "2408:876a:1000:22:37::3", "2408:874f:3001:310:5e::16", "2408:873c:7016:0:5e::16" ] }, "mail": { "spf": "", "dmarc": "", "dkim_selector": "x", "dkim_host": "", "dkim": "", "spf_analysis": { "valid": false, "lookups": 0, "final": "", "message": "Not published" }, "dmarc_analysis": { "valid": false, "policy": "" }, "bimi": "", "mta_sts": "", "tls_rpt": "" }, "advanced": { "ptr": "", "propagation": { "consistent": true, "results": [ { "provider": "Google", "server": "8.8.8.8", "result": [ "114.230.198.187", "119.188.219.52", "222.94.225.121" ], "time_ms": 1342.92 }, { "provider": "Cloudflare", "server": "1.1.1.1", "result": [ "114.230.198.187", "119.188.219.52", "222.94.225.121" ], "time_ms": 505.49 }, { "provider": "Quad9", "server": "9.9.9.9", "result": [ "114.230.198.187", "119.188.219.52", "222.94.225.121" ], "time_ms": 329.73 }, { "provider": "OpenDNS", "server": "208.67.222.222", "result": [ "114.230.198.187", "119.188.219.52", "222.94.225.121" ], "time_ms": 980.74 }, { "provider": "AdGuard", "server": "94.140.14.14", "result": [], "time_ms": 306.17 } ] } }, "ssl": { "available": true, "issuer": "China Financial Certification Authority", "subject": "*.81.cn", "valid_from": "2026-03-04T01:15:45-06:00", "valid_to": "2027-03-20T02:15:44-05:00", "days_remaining": 222, "san": [ "*.81.cn", "81.cn" ], "protocol": "TLSv1.3", "cipher": "TLS_AES_256_GCM_SHA384" }, "http": { "url": "http://www.81.cn/", "status": "HTTP/1.1 200 OK", "http_version": "2", "headers": { "location": "http://www.81.cn/", "content-length": "156096", "server": "elb", "date": "Mon, 10 Aug 2026 05:35:56 GMT", "eo-log-uuid": "13113328131314167117", "content-type": "text/html; 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compatible; ClaudeBot/1.0; +claudebot@anthropic.com)", "is_bot": true, "cloudflare": false }, "analysis_time_ms": 82.25 }