{
    "ok": true,
    "domain": "icu-project.org",
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    "cache": {
        "hit": true,
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    },
    "score": {
        "total": 64,
        "label": "Fair",
        "categories": {
            "dns": 70,
            "mail": 20,
            "security": 69,
            "network": 50,
            "availability": 100
        },
        "category_weights": {
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            "mail": 20,
            "security": 25,
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            "availability": 20
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            {
                "category": "dns",
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                "max_points": 30,
                "earned_points": 30,
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                "detail": "1 IPv4 address(es) detected."
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            {
                "category": "dns",
                "title": "IPv6 (AAAA)",
                "max_points": 10,
                "earned_points": 0,
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            {
                "category": "dns",
                "title": "Name server redundancy",
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            {
                "category": "dns",
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                "category": "dns",
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                "category": "dns",
                "title": "CAA policy",
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            {
                "category": "dns",
                "title": "DNS propagation",
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            },
            {
                "category": "mail",
                "title": "MX records",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "1 MX record(s)."
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            {
                "category": "mail",
                "title": "SPF",
                "max_points": 25,
                "earned_points": 0,
                "lost_points": 25,
                "detail": "SPF policy not found."
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            {
                "category": "mail",
                "title": "DMARC",
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                "earned_points": 0,
                "lost_points": 25,
                "detail": "DMARC policy not found."
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                "category": "mail",
                "title": "DKIM",
                "max_points": 20,
                "earned_points": 0,
                "lost_points": 20,
                "detail": "No tested DKIM selector responded."
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                "category": "mail",
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                "category": "mail",
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                "earned_points": 0,
                "lost_points": 5,
                "detail": "TLS reporting policy."
            },
            {
                "category": "security",
                "title": "Valid TLS certificate",
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                "earned_points": 55,
                "lost_points": 0,
                "detail": "68 day(s) remaining."
            },
            {
                "category": "security",
                "title": "Certificate lifetime",
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                "earned_points": 10,
                "lost_points": 0,
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            },
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                "category": "security",
                "title": "HTTP security headers",
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                "earned_points": 4,
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                "detail": "1 of 9 evaluated headers detected."
            },
            {
                "category": "network",
                "title": "PTR reverse DNS",
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                "earned_points": 30,
                "lost_points": 0,
                "detail": "PTR: icu-project.org"
            },
            {
                "category": "network",
                "title": "IPv4 diversity",
                "max_points": 35,
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                "lost_points": 15,
                "detail": "Two or more IPv4 addresses receive full points."
            },
            {
                "category": "network",
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                "earned_points": 0,
                "lost_points": 35,
                "detail": "AAAA availability."
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                "category": "availability",
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                "earned_points": 40,
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                "detail": "At least one address family must resolve."
            },
            {
                "category": "availability",
                "title": "HTTP response",
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                "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."
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        ],
        "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": "ok",
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                "detail": "1 IPv4 address(es) detected.",
                "category": "dns",
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                "earned_points": 30,
                "lost_points": 0
            },
            {
                "level": "error",
                "title": "IPv6 (AAAA)",
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                "category": "dns",
                "max_points": 10,
                "earned_points": 0,
                "lost_points": 10
            },
            {
                "level": "ok",
                "title": "Name server redundancy",
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                "lost_points": 0
            },
            {
                "level": "ok",
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                "lost_points": 0
            },
            {
                "level": "error",
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                "category": "dns",
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                "earned_points": 0,
                "lost_points": 15
            },
            {
                "level": "error",
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                "detail": "Certificate authority restriction.",
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                "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).",
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                "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": "68 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": "warning",
                "title": "HTTP security headers",
                "detail": "1 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 4,
                "lost_points": 31
            },
            {
                "level": "ok",
                "title": "PTR reverse DNS",
                "detail": "PTR: icu-project.org",
                "category": "network",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0
            },
            {
                "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": "error",
                "title": "IPv6 connectivity",
                "detail": "AAAA availability.",
                "category": "network",
                "max_points": 35,
                "earned_points": 0,
                "lost_points": 35
            },
            {
                "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.",
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                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            }
        ]
    },
    "dns": {
        "records": {
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                "64.182.27.165"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
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            "TXT": [
                "\"google-site-verification=u18B5f_sFu7m7d09PK7ArKZc6lwwX44MVlTyFGgtTFs\""
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            "NS": [
                "seamus.ns.cloudflare.com.",
                "shubhi.ns.cloudflare.com."
            ],
            "SOA": [
                "seamus.ns.cloudflare.com. dns.cloudflare.com. 2409526839 10000 2400 604800 1800"
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            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
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        "ipv6": []
    },
    "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": "icu-project.org",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
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                    "time_ms": 98.73
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
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                    "time_ms": 77.52
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                    "provider": "Quad9",
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                    "time_ms": 137.81
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
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                    ],
                    "time_ms": 80.19
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
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                    "time_ms": 411.08
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "Let's Encrypt",
        "subject": "demo.icu-project.org",
        "valid_from": "2026-07-20T02:31:36-05:00",
        "valid_to": "2026-10-18T02:31:35-05:00",
        "days_remaining": 68,
        "san": [
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            "download.icu-project.org",
            "icu-project.org",
            "www.icu-project.org"
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        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_256_GCM_SHA384"
    },
    "http": {
        "url": "https://icu-project.org/",
        "status": "HTTP/1.1 200 OK",
        "http_version": "2",
        "headers": {
            "date": "Tue, 11 Aug 2026 05:03:41 GMT",
            "server": "Apache/2.4.38 (Debian)",
            "content-security-policy": "upgrade-insecure-requests;",
            "last-modified": "Fri, 27 Jan 2023 17:11:09 GMT",
            "etag": "\"12f-5f341f3a71e19\"",
            "accept-ranges": "bytes",
            "content-length": "303",
            "vary": "Accept-Encoding",
            "connection": "close",
            "content-type": "text/html; charset=UTF-8"
        },
        "security_checks": {
            "strict-transport-security": false,
            "content-security-policy": true,
            "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
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        "server": "Apache/2.4.38 (Debian)",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://icu-project.org/",
        "title": "",
        "description": "",
        "success": true,
        "error": "",
        "status": 206
    },
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            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
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    },
    "smtp": {
        "host": "corp.unicode.org",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 34.5,
                "banner": "",
                "error": "Connection refused"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 27.4,
                "banner": "",
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            {
                "port": 587,
                "open": false,
                "time_ms": 60.7,
                "banner": "",
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            }
        ]
    },
    "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": 103.68
}