{
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    "domain": "cambridge.org",
    "generated_at": "2026-08-08T17:39:37-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 70,
        "label": "Fair",
        "categories": {
            "dns": 70,
            "mail": 90,
            "security": 73,
            "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": 30,
                "lost_points": 0,
                "detail": "2 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": "2 NS record(s); 2 or more required."
            },
            {
                "category": "dns",
                "title": "SOA record",
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                "earned_points": 10,
                "lost_points": 0,
                "detail": "Authoritative zone record."
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                "category": "dns",
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                "detail": "Both DS and DNSKEY are required."
            },
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                "category": "dns",
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                "detail": "Certificate authority restriction."
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            {
                "category": "dns",
                "title": "DNS propagation",
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                "lost_points": 0,
                "detail": "Agreement between public resolvers."
            },
            {
                "category": "mail",
                "title": "MX records",
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                "earned_points": 20,
                "lost_points": 0,
                "detail": "2 MX record(s)."
            },
            {
                "category": "mail",
                "title": "SPF",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0,
                "detail": "SPF policy published."
            },
            {
                "category": "mail",
                "title": "DMARC",
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                "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."
            },
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                "category": "mail",
                "title": "MTA-STS",
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                "detail": "Mail transport policy."
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            {
                "category": "mail",
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                "lost_points": 5,
                "detail": "TLS reporting policy."
            },
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                "category": "security",
                "title": "Valid TLS certificate",
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                "detail": "62 day(s) remaining."
            },
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                "category": "security",
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                "detail": "2 of 9 evaluated headers detected."
            },
            {
                "category": "network",
                "title": "PTR reverse DNS",
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                "lost_points": 30,
                "detail": "PTR not detected."
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                "category": "network",
                "title": "IPv4 diversity",
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                "lost_points": 0,
                "detail": "Two or more IPv4 addresses receive full points."
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                "level": "error",
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                "category": "dns",
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                "earned_points": 0,
                "lost_points": 10
            },
            {
                "level": "ok",
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            },
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                "level": "ok",
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            },
            {
                "level": "error",
                "title": "DNSSEC chain",
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                "category": "dns",
                "max_points": 15,
                "earned_points": 0,
                "lost_points": 15
            },
            {
                "level": "error",
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                "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": "2 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": "warning",
                "title": "HTTP security headers",
                "detail": "2 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 8,
                "lost_points": 27
            },
            {
                "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": "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": "error",
                "title": "HTTP response",
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                "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
            }
        ]
    },
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                "\"_qzf1ow8akt4j08t4s2mpxnfm03j00ap\"",
                "\"google-site-verification=-houjDGhv3j4boUHMyT2w-kmHVFMJBopLlqOV9CRtXE\"",
                "\"MS=ms61882158\"",
                "\"_7medm2uqul87tj3d47vgw0kjs7tvycm\"",
                "\"apple-domain-verification=DhDDkLn3rLrZDuNx\"",
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                "\"google-site-verification=G2cATcZ2EVrpsOVGGF5MmI4kHQzXzEWHQ3MLXp2AmjI\"",
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            ],
            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [
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            "TLSA": [],
            "SSHFP": []
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            "104.17.110.190"
        ],
        "ipv6": []
    },
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        "dmarc": "v=DMARC1; p=none; rua=mailto:047acbdc29a7625@rep.dmarcanalyzer.com,mailto:dmarc-admin@cambridge.org; ruf=mailto:047acbdc29a7625@rep.dmarcanalyzer.com,mailto:dmarc-admin@cambridge.org; fo=1;",
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        "dkim_host": "mx._domainkey.cambridge.org",
        "dkim": "k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCh3DY9K/WXJlMShAJrQnghLFHsVrxdcDm3HyKUQMGtG/PoGWjmBGdJER4ooA5pH0W8RjBkp69JXNmk6YQRd4UsvUKhWyQiSNtycOpZirmWp6WudfOanSffk0FxZ1JeszMP8ObQxRVQHPgcO9rZ+T6cfgOSOl22/qXoohPJEH2xDQIDAQAB",
        "spf_analysis": {
            "valid": true,
            "lookups": 1,
            "final": "",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "none"
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "",
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            "consistent": true,
            "results": [
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        "issuer": "Google Trust Services",
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        "valid_to": "2026-10-10T00:45:01-05:00",
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        "cipher": "ECDHE-ECDSA-AES128-GCM-SHA256"
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        "http_version": "3",
        "headers": {
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            "referrer-policy": "same-origin",
            "x-frame-options": "SAMEORIGIN"
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            "content-security-policy": false,
            "x-content-type-options": false,
            "x-frame-options": true,
            "referrer-policy": true,
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            "cross-origin-opener-policy": false,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": false
        },
        "server": "cloudflare",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://www.cambridge.org/",
        "title": "503 Service Temporarily Unavailable",
        "description": "",
        "success": true,
        "error": "",
        "status": 403
    },
    "network": {
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            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "104.17.110.190": {
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            "country": "",
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            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
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                "time_ms": 30.8,
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                "error": "Connection refused"
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                "open": false,
                "time_ms": 4053.4,
                "banner": "",
                "error": "Connection timed out"
            },
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                "open": false,
                "time_ms": 124.8,
                "banner": "220 eu-smtp-inbound-1.mimecast.com ESMTP; Sat, 08 Aug 2026 23:39:37 +0100",
                "error": "No connection"
            }
        ]
    },
    "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": 137.09
}