{
    "ok": true,
    "domain": "dianping.com",
    "generated_at": "2026-08-09T18:31:22-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 54,
        "label": "Critical",
        "categories": {
            "dns": 50,
            "mail": 45,
            "security": 65,
            "network": 35,
            "availability": 60
        },
        "category_weights": {
            "dns": 25,
            "mail": 20,
            "security": 25,
            "network": 10,
            "availability": 20
        },
        "items": [
            {
                "category": "dns",
                "title": "IPv4 (A)",
                "max_points": 30,
                "earned_points": 0,
                "lost_points": 30,
                "detail": "0 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": "2 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": "1 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": 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": "146 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": 0,
                "lost_points": 35,
                "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": 0,
                "lost_points": 40,
                "detail": "HTTP/1.1 405 Method Not Allowed"
            },
            {
                "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": [
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                "level": "error",
                "title": "IPv4 (A)",
                "detail": "0 IPv4 address(es) detected.",
                "category": "dns",
                "max_points": 30,
                "earned_points": 0,
                "lost_points": 30
            },
            {
                "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": "2 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": "1 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": "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": "146 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": "error",
                "title": "IPv4 diversity",
                "detail": "Two or more IPv4 addresses receive full points.",
                "category": "network",
                "max_points": 35,
                "earned_points": 0,
                "lost_points": 35
            },
            {
                "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": "error",
                "title": "HTTP response",
                "detail": "HTTP/1.1 405 Method Not Allowed",
                "category": "availability",
                "max_points": 40,
                "earned_points": 0,
                "lost_points": 40
            },
            {
                "level": "ok",
                "title": "HTTPS final URL",
                "detail": "Final URL uses HTTPS.",
                "category": "availability",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            }
        ]
    },
    "dns": {
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                ";; communications error to 69.64.44.50#53: timed out",
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                ";; global options: +cmd",
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            "AAAA": [
                "2405:1480:1000:3::3"
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            "CNAME": [
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            "TXT": [
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                "\"_globalsign-domain-verification=EEQA_LnlWQPaB2Uzim29DliQND5av1jtJseIRcVCIr\"",
                "\"0yjq6t79rszl4ybkbymhrjr310lzy80f\"",
                "\"_globalsign-domain-verification=aCMDivgjKD_46XV8_7-9ekBytR0jPnsWSvE5vFeciO\"",
                "\"_globalsign-domain-verification=aH0GwjTno6-qqiythyo3VjPtpIqJ9ddNTs8w57ds8v\"",
                "\"_2xvb3sy1okgpm94b51y1r9a0pjrfu35\"",
                "\"_globalsign-domain-verification=bz41oy9h90A2G34ZT6BhtAWDYEQMwWw2D06uu-vvwV\"",
                "\"rlfp6s2oafveq52jb2ifvpf9pj\"",
                "\"z0w2dgr8112twg6ddx6c5kr8fgkpv8rc\"",
                "\"v=spf1 include:_spf-a.meituan.com include:_spf-b.meituan.com include:_spf-overseas.meituan.com include:spf.protection.outlook.com -all\"",
                "\"_globalsign-domain-verification=avJBalVn2UXXd0LHrKJdwH-rPxtA4RGbQb7cGfKOcl\"",
                "\"dqdz6zqz628t04j4n6g1729tz5xhghmn\"",
                "\"_globalsign-domain-verification=Rb1JbF2pts8V9uGAdCeiszfrAizWxH5LdHEzO5__bX\"",
                "\"_globalsign-domain-verification=qFdKUWewYO4makhsfm5k_atJv1kfbYifDYg-3ySdUZ\"",
                "\"globalsign-domain-verification=YtHIO1eLq88YFhOov9VbMlJ0R-dfh18m6TZzOPF6R7\"",
                "\"_l85tfkr6t9b0hcvusee2myqbin6kt0a\"",
                "\"_globalsign-domain-verification=ReXZrfceMH8nGbVb9sPfoc_AILeBPXzSBBoxJnpjR8\""
            ],
            "NS": [
                "ns3.dnsv5.com.",
                "ns4.dnsv5.com."
            ],
            "SOA": [
                "ns3.dnsv5.com. enterprise3dnsadmin.dnspod.com. 1783736735 3600 180 1209600 180"
            ],
            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [
                "\\000.dianping.com. A NS SOA MX TXT AAAA SRV RRSIG NSEC DNSKEY SVCB HTTPS CAA"
            ],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [],
        "ipv6": [
            "2405:1480:1000:3::3"
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    },
    "mail": {
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        "dmarc": "",
        "dkim_selector": "x",
        "dkim_host": "",
        "dkim": "",
        "spf_analysis": {
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            "lookups": 4,
            "final": "-all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
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            "policy": ""
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "",
        "propagation": {
            "consistent": true,
            "results": [
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                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
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                    "time_ms": 58.08
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                {
                    "provider": "Cloudflare",
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                    "time_ms": 50.18
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                    "provider": "Quad9",
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                    "time_ms": 70.88
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                {
                    "provider": "OpenDNS",
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                    "result": [
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                    "time_ms": 98.59
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                    "provider": "AdGuard",
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                    "time_ms": 781.69
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        }
    },
    "ssl": {
        "available": true,
        "issuer": "GlobalSign nv-sa",
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        "valid_from": "2025-12-02T06:20:06-06:00",
        "valid_to": "2027-01-03T06:20:05-06:00",
        "days_remaining": 146,
        "san": [
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            "dianping.com"
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        "protocol": "TLSv1.2",
        "cipher": "ECDHE-RSA-AES128-GCM-SHA256"
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        "http_version": "2",
        "headers": {
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            "date": "Sun, 09 Aug 2026 23:31:12 GMT",
            "content-type": "text/html;charset=iso-8859-1",
            "content-length": "0",
            "connection": "keep-alive",
            "keep-alive": "timeout=5",
            "location": "https://verify.meituan.com/v2/app/general_page?requestCode=dc57dae7ea4741a28c4ee61b3ea38efd&adaptor=auto&action=spiderindefence&succCallbackUrl=https%3A%2F%2Foptimus-mtsi.meituan.com%2Foptimus%2FverifyResult%3ForiginUrl%3Dhttps%253A%252F%252Fwww.dianping.com%252F&theme=dianping",
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            "cache-control": "must-revalidate,no-cache,no-store",
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            "access-control-allow-headers": "x-requested-with, Authorization, yoda-language, Authencation, Timestamp, mtgsig",
            "access-control-allow-methods": "POST, GET, OPTIONS",
            "access-control-max-age": "3600",
            "allow": "POST, GET",
            "m-appkey": "com.sankuai.rc.yoda.yoda",
            "m-spanname": "/v2/app/general_page",
            "access-control-allow-credentials": "true"
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        "security_checks": {
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            "content-security-policy": false,
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            "x-frame-options": false,
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            "permissions-policy": false,
            "cross-origin-opener-policy": false,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": false
        },
        "server": "openresty",
        "powered_by": ""
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    "webpage": {
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        "title": "验证中心",
        "description": "",
        "success": true,
        "error": "",
        "status": 200
    },
    "network": [],
    "smtp": {
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                "time_ms": 321.7,
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                "port": 465,
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                "time_ms": 1217.6,
                "banner": "",
                "error": "No connection"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 4021,
                "banner": "",
                "error": "Connection timed out"
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        ]
    },
    "visitor": {
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        "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": 82.47
}