{ "ok": true, "domain": "csair.com", "generated_at": "2026-08-10T11:24:36-05:00", "cache": { "hit": true, "ttl": 0 }, "score": { "total": 80, "label": "Good", "categories": { "dns": 80, "mail": 90, "security": 65, "network": 55, "availability": 100 }, "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": "1 IPv4 address(es) detected." }, { "category": "dns", "title": "IPv6 (AAAA)", "max_points": 10, "earned_points": 10, "lost_points": 0, "detail": "1 IPv6 address(es) detected." }, { "category": "dns", "title": "Name server redundancy", "max_points": 20, "earned_points": 20, "lost_points": 0, "detail": "7 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": 0, "lost_points": 5, "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": "3 MX record(s)." }, { "category": "mail", "title": "SPF", "max_points": 25, "earned_points": 25, "lost_points": 0, "detail": "SPF policy published." }, { "category": "mail", "title": "DMARC", "max_points": 25, "earned_points": 25, "lost_points": 0, "detail": "DMARC policy published." }, { "category": "mail", "title": "DKIM", "max_points": 20, "earned_points": 20, "lost_points": 0, "detail": "A DKIM selector was verified." }, { "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": "62 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": 20, "lost_points": 15, "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": 20, "lost_points": 0, "detail": "Final URL uses 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": "1 IPv4 address(es) detected.", "category": "dns", "max_points": 30, "earned_points": 30, "lost_points": 0 }, { "level": "ok", "title": "IPv6 (AAAA)", "detail": "1 IPv6 address(es) detected.", "category": "dns", "max_points": 10, "earned_points": 10, "lost_points": 0 }, { "level": "ok", "title": "Name server redundancy", "detail": "7 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": "error", "title": "CAA policy", "detail": "Certificate authority restriction.", "category": "dns", "max_points": 5, "earned_points": 0, "lost_points": 5 }, { "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": "3 MX record(s).", "category": "mail", "max_points": 20, "earned_points": 20, "lost_points": 0 }, { "level": "ok", "title": "SPF", "detail": "SPF policy published.", "category": "mail", "max_points": 25, "earned_points": 25, "lost_points": 0 }, { "level": "ok", "title": "DMARC", "detail": "DMARC policy published.", "category": "mail", "max_points": 25, "earned_points": 25, "lost_points": 0 }, { "level": "ok", "title": "DKIM", "detail": "A DKIM selector was verified.", "category": "mail", "max_points": 20, "earned_points": 20, "lost_points": 0 }, { "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": "62 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": "warning", "title": "IPv4 diversity", "detail": "Two or more IPv4 addresses receive full points.", "category": "network", "max_points": 35, "earned_points": 20, "lost_points": 15 }, { "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": "ok", "title": "HTTPS final URL", "detail": "Final URL uses HTTPS.", "category": "availability", "max_points": 20, "earned_points": 20, "lost_points": 0 } ] }, "dns": { "records": { "A": [ "183.236.6.196" ], "AAAA": [ ";; communications error to 69.64.44.20#53: timed out", "2409:8754:810:3::b7ec:6c4" ], "CNAME": [], "MX": [ "30 smtp1.cs-air.com.", "10 mx1.csair.com.", "20 mx2.csair.com." ], "TXT": [ "\"v=spf1 ip4:59.41.199.0/24 ip4:157.122.72.0/24 ip4:183.236.6.0/24 ip4:45.194.96.240/28 ip4:202.156.53.128/26 -all\"" ], "NS": [ ";; communications error to 69.64.44.20#53: timed out", "csans3.cs-air.com.", "csans5.cs-air.com.", "csans1.cs-air.com.", "csans2.cs-air.com.", "csans4.cs-air.com.", "csans6.cs-air.com." ], "SOA": [ "csans1.cs-air.com. hostmaster. 2023121713 600 600 1209600 600" ], "CAA": [], "DS": [], "DNSKEY": [], "RRSIG": [], "NSEC": [], "NSEC3": [], "SRV": [], "NAPTR": [ ";; communications error to 69.64.44.20#53: timed out" ], "TLSA": [], "SSHFP": [] }, "ipv4": [ "183.236.6.196" ], "ipv6": [ "2409:8754:810:3::b7ec:6c4" ] }, "mail": { "spf": "v=spf1 ip4:59.41.199.0/24 ip4:157.122.72.0/24 ip4:183.236.6.0/24 ip4:45.194.96.240/28 ip4:202.156.53.128/26 -all", "dmarc": "v=DMARC1; p=none; pct=100; rua=mailto:rua@csair.com; ruf=mailto:ruf@csair.com", "dkim_selector": "default", "dkim_host": "default._domainkey.csair.com", "dkim": "v=DKIM1;k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDTt8mTd/O6YsDfc1rf4Em7y8UhdNSog0GnMubtv6TVv1eDtii2dDYzH13cBSuMdvCSdTbDQZY+gRZ6oCu7q/ImNk0Vx51eTtN/bAl4MZxegO2NepNAw4aY3reRx3yJ24KxaEOGS6/iTHEm70kPCJhqHxDXfuBYlXCKbphQDd17/QIDAQAB", "spf_analysis": { "valid": true, "lookups": 0, "final": "-all", "message": "Within the estimated limit" }, "dmarc_analysis": { "valid": true, "policy": "none" }, "bimi": "", "mta_sts": "", "tls_rpt": "" }, "advanced": { "ptr": "", "propagation": { "consistent": true, "results": [ { "provider": "Google", "server": "8.8.8.8", "result": [ "183.236.6.196" ], "time_ms": 278.58 }, { "provider": "Cloudflare", "server": "1.1.1.1", "result": [ "183.236.6.196" ], "time_ms": 576.73 }, { "provider": "Quad9", "server": "9.9.9.9", "result": [ "183.236.6.196" ], "time_ms": 264.63 }, { "provider": "OpenDNS", "server": "208.67.222.222", "result": [ "183.236.6.196" ], "time_ms": 235.49 }, { "provider": "AdGuard", "server": "94.140.14.14", "result": [ "183.236.6.196" ], "time_ms": 381.53 } ] } }, "ssl": { "available": true, "issuer": "DigiCert, Inc.", "subject": "*.csair.cn", "valid_from": "2026-03-26T19:00:00-05:00", "valid_to": "2026-10-11T18:59:59-05:00", "days_remaining": 62, "san": [ "*.csair.cn", "csair.cn", "*.csair.com", "csair.com", "*.csairgroup.cn", "csairgroup.cn", "*.tapd.csair.cn", "tapd.csair.cn" ], "protocol": "TLSv1.3", "cipher": "TLS_AES_256_GCM_SHA384" }, "http": { "url": "https://csair.com/", "status": "HTTP/1.1 200 OK", "http_version": "2", "headers": { "content-type": "text/html; charset=UTF-8", "connection": "keep-alive", "server": "openresty", "date": "Mon, 10 Aug 2026 16:24:27 GMT", "vary": "Accept-Encoding", "x-powered-by": "106", "access-control-allow-origin": "*", "x-is-dir": "0", "x-file-allowed": "1" }, "security_checks": { "strict-transport-security": false, "content-security-policy": false, "x-content-type-options": false, "x-frame-options": false, "referrer-policy": false, "permissions-policy": false, "cross-origin-opener-policy": false, "cross-origin-embedder-policy": false, "cross-origin-resource-policy": false }, "server": "openresty", "powered_by": "106" }, "webpage": { "url": "https://csair.com/", "title": "中国南方航空官网-机票查询,机票预定,航班查询", "description": "中国南方航空官网,提供国内国际机票预订,飞机票查询,航班查询,特价打折机票预订,明珠会员服务等.南航特价优惠机票2折起,南航官网预订机票最高直减15%,南航全国销售服务热线95539.", "success": true, "error": "", "status": 200 }, "network": { "183.236.6.196": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" } }, "smtp": { "host": "smtp1.cs-air.com", "ports": [ { "port": 25, "open": false, "time_ms": 202.1, "banner": "", "error": "Connection refused" }, { "port": 465, "open": false, "time_ms": 4208.2, "banner": "", "error": "Connection timed out" }, { "port": 587, "open": false, "time_ms": 2061.8, "banner": "", "error": "Connection refused" } ] }, "visitor": { "ip": "216.73.217.62", "reverse": "", "country": "", "country_code": "", "region": "", "city": "", "latitude": null, "longitude": null, "isp": "", "organization": "", "asn": "", "timezone": "", "browser": "Other", "os": "Other", "language": "", "user_agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)", "is_bot": true, "cloudflare": false }, "analysis_time_ms": 80.41 }