{
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    "domain": "udemy.com",
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    "cache": {
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        "label": "Good",
        "categories": {
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            "mail": 90,
            "security": 96,
            "network": 70,
            "availability": 60
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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",
                "title": "IPv4 (A)",
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                "earned_points": 30,
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                "detail": "2 IPv4 address(es) detected."
            },
            {
                "category": "dns",
                "title": "IPv6 (AAAA)",
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                "detail": "2 NS record(s); 2 or more required."
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                "detail": "Authoritative zone record."
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                "detail": "DS and DNSKEY detected."
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                "category": "dns",
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                "detail": "Certificate authority restriction."
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                "category": "dns",
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                "category": "mail",
                "title": "MX records",
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                "detail": "7 MX record(s)."
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                "category": "mail",
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                "earned_points": 25,
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                "detail": "SPF policy published."
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                "detail": "DMARC policy published."
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                "detail": "A DKIM selector was verified."
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                "detail": "TLS reporting policy."
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                "category": "security",
                "title": "Valid TLS certificate",
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                "detail": "82 day(s) remaining."
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                "category": "security",
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                "detail": "8 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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                "detail": "At least one address family must resolve."
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                "detail": "Final URL uses HTTPS."
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                "level": "ok",
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                "detail": "DS and DNSKEY detected.",
                "category": "dns",
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                "earned_points": 15,
                "lost_points": 0
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                "level": "error",
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                "detail": "Certificate authority restriction.",
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                "earned_points": 0,
                "lost_points": 5
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            {
                "level": "ok",
                "title": "DNS propagation",
                "detail": "Agreement between public resolvers.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
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            {
                "level": "ok",
                "title": "MX records",
                "detail": "7 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": "82 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": "8 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 31,
                "lost_points": 4
            },
            {
                "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": "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",
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                "max_points": 40,
                "earned_points": 0,
                "lost_points": 40
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            {
                "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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                "\"google-site-verification=0Gl3_FzqmUkS2NHg_Wd5pmGiSmt_Jk4MVnaCiDbhDnY\"",
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            "final": "-all",
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