{
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    "domain": "cengage.com",
    "generated_at": "2026-08-10T01:29:25-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
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        "total": 82,
        "label": "Good",
        "categories": {
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            "mail": 90,
            "security": 84,
            "network": 50,
            "availability": 100
        },
        "category_weights": {
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            "mail": 20,
            "security": 25,
            "network": 10,
            "availability": 20
        },
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            {
                "category": "dns",
                "title": "IPv4 (A)",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0,
                "detail": "1 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",
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                "earned_points": 20,
                "lost_points": 0,
                "detail": "3 NS record(s); 2 or more required."
            },
            {
                "category": "dns",
                "title": "SOA record",
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                "lost_points": 0,
                "detail": "Authoritative zone record."
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                "category": "dns",
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                "earned_points": 0,
                "lost_points": 15,
                "detail": "Both DS and DNSKEY are required."
            },
            {
                "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": 10,
                "lost_points": 0,
                "detail": "Agreement between public resolvers."
            },
            {
                "category": "mail",
                "title": "MX records",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "2 MX record(s)."
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            {
                "category": "mail",
                "title": "SPF",
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                "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",
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                "earned_points": 20,
                "lost_points": 0,
                "detail": "A DKIM selector was verified."
            },
            {
                "category": "mail",
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                "earned_points": 0,
                "lost_points": 5,
                "detail": "Mail transport policy."
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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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                "detail": "214 day(s) remaining."
            },
            {
                "category": "security",
                "title": "Certificate lifetime",
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                "earned_points": 10,
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            },
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                "lost_points": 16,
                "detail": "5 of 9 evaluated headers detected."
            },
            {
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                "earned_points": 30,
                "lost_points": 0,
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            {
                "category": "network",
                "title": "IPv4 diversity",
                "max_points": 35,
                "earned_points": 20,
                "lost_points": 15,
                "detail": "Two or more IPv4 addresses receive full points."
            },
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                "lost_points": 35,
                "detail": "AAAA availability."
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                "detail": "At least one address family must resolve."
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                "lost_points": 0,
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            },
            {
                "category": "availability",
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                "earned_points": 20,
                "lost_points": 0,
                "detail": "Final URL uses HTTPS."
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                "category": "dns",
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                "lost_points": 0
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            {
                "level": "error",
                "title": "IPv6 (AAAA)",
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                "category": "dns",
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                "earned_points": 0,
                "lost_points": 10
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            {
                "level": "ok",
                "title": "Name server redundancy",
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                "category": "dns",
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            {
                "level": "ok",
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                "max_points": 10,
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                "lost_points": 0
            },
            {
                "level": "error",
                "title": "DNSSEC chain",
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                "category": "dns",
                "max_points": 15,
                "earned_points": 0,
                "lost_points": 15
            },
            {
                "level": "error",
                "title": "CAA policy",
                "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": "214 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": "5 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 19,
                "lost_points": 16
            },
            {
                "level": "ok",
                "title": "PTR reverse DNS",
                "detail": "PTR: hr.cengage.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,
                "earned_points": 40,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "HTTP response",
                "detail": "HTTP/2 200 ",
                "category": "availability",
                "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": {
        "records": {
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            "AAAA": [],
            "CNAME": [],
            "MX": [
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                "\"google-site-verification=rMegLmxTlbTTydYNGH-cOiN9WcOFsuaXx9gpR2RMwx8\"",
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                "\"google-site-verification=L_XIohOodP_pkkG1LWK5fgTNPu5zY992G2p9vzxnpT0\"",
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                "\"jamf-site-verification=lbpt07mBT7VIXextB7Z2iw\"",
                "\"google-site-verification=tCSYUitMiwJtbVb_9zj0h0KgQ2dg7UtcGArBd0nPjAM\"",
                "\"tvmd0p25vpf6p8qj6bqkfx4cwpnb3f7p\"",
                "\"v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all\"",
                "\"google-site-verification=81nfnsdzn7AkMec_CFlzwpc-74eEYPewLRbTHz4PQ68\"",
                "\"6kg49tjr73tbbphlx3g5tyy3v5kfyscf\"",
                "\"onetrust-domain-verification=8992c9ef19b14ccf84bc7c93bdd68372\"",
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                "\"slack-domain-verification=kVF5zo1TjQzg8muoanv1ET8v6hVwMhCwdvJeTUlE\"",
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            ],
            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
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        "ipv6": []
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            "message": "Within the estimated limit"
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            "valid": true,
            "policy": "reject"
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        "mta_sts": "",
        "tls_rpt": ""
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            "results": [
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                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
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                    ],
                    "time_ms": 45.13
                },
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                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
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                    "result": [
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                    ],
                    "time_ms": 53.38
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
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                    ],
                    "time_ms": 33.49
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
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                    "time_ms": 70.48
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            ]
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        "valid_from": "2026-02-10T18:00:00-06:00",
        "valid_to": "2027-03-12T17:59:59-06:00",
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        "cipher": "TLS_AES_128_GCM_SHA256"
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        "status": "HTTP/2 200 ",
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            "server": "cloudflare",
            "connection": "Keep-Alive",
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