{
    "ok": true,
    "domain": "cas.go.jp",
    "generated_at": "2026-08-10T01:48:58-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 33,
        "label": "Critical",
        "categories": {
            "dns": 45,
            "mail": 90,
            "security": 0,
            "network": 0,
            "availability": 20
        },
        "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": 0,
                "lost_points": 10,
                "detail": "0 IPv6 address(es) detected."
            },
            {
                "category": "dns",
                "title": "Name server redundancy",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "4 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": 15,
                "lost_points": 0,
                "detail": "DS and DNSKEY detected."
            },
            {
                "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": 0,
                "lost_points": 10,
                "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": 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": 0,
                "lost_points": 55,
                "detail": "No valid certificate was retrieved."
            },
            {
                "category": "security",
                "title": "Certificate lifetime",
                "max_points": 10,
                "earned_points": 0,
                "lost_points": 10,
                "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": 0,
                "lost_points": 35,
                "detail": "AAAA availability."
            },
            {
                "category": "availability",
                "title": "DNS resolution",
                "max_points": 40,
                "earned_points": 0,
                "lost_points": 40,
                "detail": "At least one address family must resolve."
            },
            {
                "category": "availability",
                "title": "HTTP response",
                "max_points": 40,
                "earned_points": 0,
                "lost_points": 40,
                "detail": "No successful HTTP response."
            },
            {
                "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": "error",
                "title": "IPv4 (A)",
                "detail": "0 IPv4 address(es) detected.",
                "category": "dns",
                "max_points": 30,
                "earned_points": 0,
                "lost_points": 30
            },
            {
                "level": "error",
                "title": "IPv6 (AAAA)",
                "detail": "0 IPv6 address(es) detected.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 0,
                "lost_points": 10
            },
            {
                "level": "ok",
                "title": "Name server redundancy",
                "detail": "4 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": "ok",
                "title": "DNSSEC chain",
                "detail": "DS and DNSKEY detected.",
                "category": "dns",
                "max_points": 15,
                "earned_points": 15,
                "lost_points": 0
            },
            {
                "level": "error",
                "title": "CAA policy",
                "detail": "Certificate authority restriction.",
                "category": "dns",
                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5
            },
            {
                "level": "error",
                "title": "DNS propagation",
                "detail": "Agreement between public resolvers.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 0,
                "lost_points": 10
            },
            {
                "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": "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": "error",
                "title": "Valid TLS certificate",
                "detail": "No valid certificate was retrieved.",
                "category": "security",
                "max_points": 55,
                "earned_points": 0,
                "lost_points": 55
            },
            {
                "level": "error",
                "title": "Certificate lifetime",
                "detail": "Full points require at least 30 days remaining.",
                "category": "security",
                "max_points": 10,
                "earned_points": 0,
                "lost_points": 10
            },
            {
                "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": "error",
                "title": "IPv6 connectivity",
                "detail": "AAAA availability.",
                "category": "network",
                "max_points": 35,
                "earned_points": 0,
                "lost_points": 35
            },
            {
                "level": "error",
                "title": "DNS resolution",
                "detail": "At least one address family must resolve.",
                "category": "availability",
                "max_points": 40,
                "earned_points": 0,
                "lost_points": 40
            },
            {
                "level": "error",
                "title": "HTTP response",
                "detail": "No successful HTTP response.",
                "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": {
        "records": {
            "A": [],
            "AAAA": [],
            "CNAME": [],
            "MX": [
                "0 cas-go-jp.mail.protection.outlook.com."
            ],
            "TXT": [
                "\"MS=ms66331032\"",
                "\"v=spf1 include:spf.securemx.jp. ip4:163.43.136.144 ip4:153.125.144.143 include:spf.protection.outlook.com -all\"",
                "\"MS=F656C5C7043664BB3B1C3E37F0C63D6529B43877\""
            ],
            "NS": [
                "ns-1841.awsdns-38.co.uk.",
                "ns-1015.awsdns-62.net.",
                "ns-1193.awsdns-21.org.",
                "ns-186.awsdns-23.com."
            ],
            "SOA": [
                "ns-1015.awsdns-62.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400"
            ],
            "CAA": [],
            "DS": [
                "60841 13 2 92A68A91251C32B7B8EA7835B47DCABA05923F2BC867A191AE2C1E16 9A724ADF"
            ],
            "DNSKEY": [
                "256 3 13 dwlkaE2Long3dkSHSxV775Uc19+Y4BAteZXlTNPARuAQv12yLfbjByAI Pul6Tm8fZ868lpahHiferkxHfRQ3CA==",
                "256 3 13 iS0AGlGrZGGmYd7rFvGNAKpyBhRmJ1lixzIj6Np4H9R+nD1LALOS8hRk XzFndHpARS0Q2cLYIwC+wNOADrCzVw==",
                "257 3 13 XU0+0p42VS4QxkCGy98HufHP7LbpZH05Cf96te1aXgi9MC9jk4fnr5UE nxf/mwGgJZNRYljDZCUN3lnpzXoZsQ=="
            ],
            "RRSIG": [
                "SOA 13 3 900 20260810080350 20260810054850 63256 cas.go.jp. kY9TdzyqWn0pMiVYobIGuBdUfWFxw2jKCkeZg6E0pI4IBFgXv3eZaHc1 JHYMX0UhD0LDWmm1N4fCDm+XDJKQYw==",
                "NS 13 3 172800 20260812074850 20260810054850 63256 cas.go.jp. OrLQGHl705JgHx1ocB5W2Cc2NC+6FnuDEIoNp7Zz8aDbCZGMHVoXsFIm L8ViauEHDVbA41HVwjmf0TtR8t4Kqw==",
                "TXT 13 3 300 20260810075349 20260810054849 63256 cas.go.jp. NRoEOfe6hufKUQTHoDMYQW1s8ntcCcD+c8ISpli5bH3sZPVWquyKux1H yr4Op5BSQY5UiPo9GKPvF5lc+5wJkw==",
                "MX 13 3 300 20260810075349 20260810054849 63256 cas.go.jp. Fdrx9Np7F1dk7gIPescLeRWbWmznpKnHdLY4R6r/y0U+eZq/XBUtoVLC 7JpJI4MpVCe/eqfoa82FBLW9TbTlyA==",
                "DS 8 3 7200 20260907174503 20260808174503 11529 jp. UDVjsZOxihY8aFNscyWw16tAEj7T7Q4qfSeoeZG41skS6d05hNK9JgG4 m1AKYaVGDeTO0riWDTpZrtGLiZ+VYoVXzzA2L439aVC0vQEg0iuPqlKR kEOjk0C9Et6ik4cJAYeAzBnu7bAgoGHunZsJiaBJna8BTL5hZgyuGI1y YI8="
            ],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [],
        "ipv6": []
    },
    "mail": {
        "spf": "v=spf1 include:spf.securemx.jp. ip4:163.43.136.144 ip4:153.125.144.143 include:spf.protection.outlook.com -all",
        "dmarc": "v=DMARC1; p=none; pct=100; rua=mailto:rua-report@cas.go.jp; ruf=mailto:ruf-report@cas.go.jp",
        "dkim_selector": "selector1",
        "dkim_host": "selector1._domainkey.cas.go.jp",
        "dkim": "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA9HLrmrWaGfQrPH3bC7dWqERSAI428Pz581Nup7LFX81G5MNcRxbDrY4jtozOeBeuyF1cSBcr5ZMNt935EzilVruVXsHC15g0DwdcWt/0EfPlO4EPjIuRZHTd6so+SBZ2Cq6AXWJxViklE7mV1KI8atT2NCREenfzxYJlElDJ1c3ee3F0kpvthUXciWWKdgl/fxbT6UTV/qhDFZFqfLhCq6ImSREiF/ETWb2nG8kQQ49kEiZqrhjND9FCsxa1acBLM0au5lEzunF9v0tZ7A4E89GaCsTWg2dGjTdplrQ1v1vd/hiSfQdjU6WDIjlcmVNgNxGubgMnr3LRh/JwjjqrOQIDAQAB;",
        "spf_analysis": {
            "valid": true,
            "lookups": 2,
            "final": "-all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "none"
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "",
        "propagation": {
            "consistent": false,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [],
                    "time_ms": 46.2
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [],
                    "time_ms": 52.64
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [],
                    "time_ms": 27
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [],
                    "time_ms": 75.37
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [],
                    "time_ms": 138.23
                }
            ]
        }
    },
    "ssl": {
        "available": false,
        "issuer": "",
        "subject": "",
        "valid_from": "",
        "valid_to": "",
        "days_remaining": null,
        "san": [],
        "protocol": "",
        "cipher": "",
        "error": "php_network_getaddresses: getaddrinfo failed: No address associated with hostname"
    },
    "http": {
        "url": "https://cas.go.jp/",
        "status": "",
        "http_version": "0",
        "headers": [],
        "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": "",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://cas.go.jp/",
        "title": "",
        "description": "",
        "success": false,
        "error": "Could not resolve host: cas.go.jp"
    },
    "network": [],
    "smtp": {
        "host": "cas-go-jp.mail.protection.outlook.com",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 32.6,
                "banner": "",
                "error": "Connection refused"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 4036.9,
                "banner": "",
                "error": "Connection timed out"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 4052,
                "banner": "",
                "error": "Connection timed out"
            }
        ]
    },
    "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": 143.54
}