{
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        "total": 78,
        "label": "Good",
        "categories": {
            "dns": 70,
            "mail": 90,
            "security": 69,
            "network": 50,
            "availability": 100
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        "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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                "detail": "1 IPv4 address(es) detected."
            },
            {
                "category": "dns",
                "title": "IPv6 (AAAA)",
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                "category": "dns",
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                "category": "dns",
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            {
                "category": "dns",
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                "detail": "Agreement between public resolvers."
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            {
                "category": "mail",
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                "detail": "1 MX record(s)."
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                "category": "mail",
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                "detail": "SPF policy published."
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                "category": "mail",
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                "detail": "DMARC policy published."
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                "category": "mail",
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                "detail": "A DKIM selector was verified."
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                "category": "mail",
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                "category": "mail",
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                "category": "security",
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                "detail": "141 day(s) remaining."
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            {
                "category": "security",
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                "category": "security",
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                "category": "network",
                "title": "PTR reverse DNS",
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                "lost_points": 0,
                "detail": "PTR: ec2-3-148-81-110.us-east-2.compute.amazonaws.com"
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            {
                "category": "network",
                "title": "IPv4 diversity",
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                "detail": "Two or more IPv4 addresses receive full points."
            },
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                "earned_points": 0,
                "lost_points": 35,
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            {
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                "detail": "At least one address family must resolve."
            },
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                "category": "availability",
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                "lost_points": 0,
                "detail": "HTTP/2 200 "
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                "category": "availability",
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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%.",
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                "lost_points": 10
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                "level": "ok",
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                "level": "ok",
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                "level": "error",
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                "lost_points": 15
            },
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                "earned_points": 0,
                "lost_points": 5
            },
            {
                "level": "ok",
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                "earned_points": 10,
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            },
            {
                "level": "ok",
                "title": "MX records",
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                "earned_points": 20,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "SPF",
                "detail": "SPF policy published.",
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                "earned_points": 25,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "DMARC",
                "detail": "DMARC policy published.",
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                "max_points": 25,
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                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "DKIM",
                "detail": "A DKIM selector was verified.",
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                "earned_points": 20,
                "lost_points": 0
            },
            {
                "level": "error",
                "title": "MTA-STS",
                "detail": "Mail transport policy.",
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                "earned_points": 0,
                "lost_points": 5
            },
            {
                "level": "error",
                "title": "TLS-RPT",
                "detail": "TLS reporting policy.",
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            },
            {
                "level": "ok",
                "title": "Valid TLS certificate",
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                "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: ec2-3-148-81-110.us-east-2.compute.amazonaws.com",
                "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,
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                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "HTTP response",
                "detail": "HTTP/2 200 ",
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                "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": {
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            "A": [
                "3.148.81.110"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
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            ],
            "TXT": [
                "\"v=spf1 +mx +a +ip4:3.142.129.229 include:amazonses.com ~all\""
            ],
            "NS": [
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                "ns-1403.awsdns-47.org.",
                "ns-1759.awsdns-27.co.uk.",
                "ns-201.awsdns-25.com."
            ],
            "SOA": [
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            ],
            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
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        ],
        "ipv6": []
    },
    "mail": {
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        "dmarc": "v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com",
        "dkim_selector": "default",
        "dkim_host": "default._domainkey.goodereader.com",
        "dkim": "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAt1PmFu7/AECiy38Jr/FuDmnmJXHiKZqisFjpwPKMAKi9voChTpgOPQ0sc4UH8O5oaRUkQyJ+G1TvpFzkZYKg2dRsPZ5hh1ktH82wLCHU+pxK8QPzIi8lAobb4PyAc8ICG9hyzAm7a7IDKLadjrhPMkCRPnyREWtcxYzCwBSFjpUfwciRFUv7mYhzMAumwpry7g17sQ9dbU3Y56PIp2yB1yWkNCp6SQ7N/ILm5IqE8PzaptwoHWxXFCxN/lb1cO9jqJGbUOD98cLYBwvmNv+pZl5IOhZraqk8mY+fLJ8Kiye8AE7qyf5yBmMrbTGBBLnLO1KiWGDWr/aL+ZLMeQvkqQIDAQAB;",
        "spf_analysis": {
            "valid": true,
            "lookups": 3,
            "final": "~all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "none"
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "ec2-3-148-81-110.us-east-2.compute.amazonaws.com",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
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                    ],
                    "time_ms": 82.82
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "3.148.81.110"
                    ],
                    "time_ms": 33.68
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
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                    ],
                    "time_ms": 77.8
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
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                    ],
                    "time_ms": 106.7
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
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                    ],
                    "time_ms": 89.33
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "Sectigo Limited",
        "subject": "*.goodereader.com",
        "valid_from": "2026-06-15T19:00:00-05:00",
        "valid_to": "2026-12-31T17:59:59-06:00",
        "days_remaining": 141,
        "san": [
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            "goodereader.com"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_256_GCM_SHA384"
    },
    "http": {
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        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
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            "location": "https://goodereader.com/blog/",
            "vary": "User-Agent",
            "alt-svc": "h3=\":443\"; ma=2592000, h3-29=\":443\"; ma=2592000",
            "x-dns-prefetch-control": "on",
            "content-type": "text/html; charset=UTF-8",
            "permissions-policy": "private-state-token-redemption=(self \"https://www.google.com\" \"https://www.gstatic.com\" \"https://recaptcha.net\" \"https://challenges.cloudflare.com\" \"https://hcaptcha.com\"), private-state-token-issuance=(self \"https://www.google.com\" \"https://www.gstatic.com\" \"https://recaptcha.net\" \"https://challenges.cloudflare.com\" \"https://hcaptcha.com\")",
            "link": "<https://goodereader.com/blog/wp-json/>; rel=\"https://api.w.org/\"",
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            "content-security-policy": false,
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            "permissions-policy": true,
            "cross-origin-opener-policy": false,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": false
        },
        "server": "LiteSpeed",
        "powered_by": ""
    },
    "webpage": {
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        "title": "Good e-Reader - The latest news on audiobooks, e-books, e-readers, tablets, and reviews.",
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        "success": true,
        "error": "",
        "status": 200
    },
    "network": {
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            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "mail.goodereader.com",
        "ports": [
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                "port": 25,
                "open": false,
                "time_ms": 8.9,
                "banner": "",
                "error": "Connection refused"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 34.6,
                "banner": "",
                "error": "No connection"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 27.7,
                "banner": "220-server.goodereader.com ESMTP Exim 4.99.5 #2 Wed, 12 Aug 2026 13:18:06 -0700",
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    "visitor": {
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        "reverse": "",
        "country": "United States",
        "country_code": "US",
        "region": "Ohio",
        "city": "Columbus",
        "latitude": 39.9586885,
        "longitude": -82.9986903,
        "isp": "Amazon.com, Inc.",
        "organization": "Anthropic, PBC",
        "asn": 16509,
        "timezone": "America/New_York",
        "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": 74.4
}