{
    "ok": true,
    "domain": "fluentu.com",
    "generated_at": "2026-08-10T13:52:54-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 82,
        "label": "Good",
        "categories": {
            "dns": 65,
            "mail": 95,
            "security": 81,
            "network": 65,
            "availability": 100
        },
        "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": "4 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": "4 NS record(s); 2 or more required."
            },
            {
                "category": "dns",
                "title": "SOA record",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "Authoritative zone record."
            },
            {
                "category": "dns",
                "title": "DNSSEC chain",
                "max_points": 15,
                "earned_points": 0,
                "lost_points": 15,
                "detail": "Both DS and DNSKEY are required."
            },
            {
                "category": "dns",
                "title": "CAA policy",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0,
                "detail": "Certificate authority restriction."
            },
            {
                "category": "dns",
                "title": "DNS propagation",
                "max_points": 10,
                "earned_points": 0,
                "lost_points": 10,
                "detail": "Agreement between public resolvers."
            },
            {
                "category": "mail",
                "title": "MX records",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "5 MX record(s)."
            },
            {
                "category": "mail",
                "title": "SPF",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0,
                "detail": "SPF policy published."
            },
            {
                "category": "mail",
                "title": "DMARC",
                "max_points": 25,
                "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."
            },
            {
                "category": "mail",
                "title": "MTA-STS",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0,
                "detail": "Mail transport policy."
            },
            {
                "category": "mail",
                "title": "TLS-RPT",
                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5,
                "detail": "TLS reporting policy."
            },
            {
                "category": "security",
                "title": "Valid TLS certificate",
                "max_points": 55,
                "earned_points": 55,
                "lost_points": 0,
                "detail": "199 day(s) remaining."
            },
            {
                "category": "security",
                "title": "Certificate lifetime",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "Full points require at least 30 days remaining."
            },
            {
                "category": "security",
                "title": "HTTP security headers",
                "max_points": 35,
                "earned_points": 16,
                "lost_points": 19,
                "detail": "4 of 9 evaluated headers detected."
            },
            {
                "category": "network",
                "title": "PTR reverse DNS",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0,
                "detail": "PTR: server-3-162-163-83.ord56.r.cloudfront.net"
            },
            {
                "category": "network",
                "title": "IPv4 diversity",
                "max_points": 35,
                "earned_points": 35,
                "lost_points": 0,
                "detail": "Two or more IPv4 addresses receive full points."
            },
            {
                "category": "network",
                "title": "IPv6 connectivity",
                "max_points": 35,
                "earned_points": 0,
                "lost_points": 35,
                "detail": "AAAA availability."
            },
            {
                "category": "availability",
                "title": "DNS resolution",
                "max_points": 40,
                "earned_points": 40,
                "lost_points": 0,
                "detail": "At least one address family must resolve."
            },
            {
                "category": "availability",
                "title": "HTTP response",
                "max_points": 40,
                "earned_points": 40,
                "lost_points": 0,
                "detail": "HTTP/2 200 "
            },
            {
                "category": "availability",
                "title": "HTTPS final URL",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "Final URL uses HTTPS."
            }
        ],
        "methodology": "Each category is normalized to 100. The total is the weighted sum: DNS 25%, Email 20%, Security 25%, Network 10%, Availability 20%.",
        "diagnostics": [
            {
                "level": "ok",
                "title": "IPv4 (A)",
                "detail": "4 IPv4 address(es) detected.",
                "category": "dns",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0
            },
            {
                "level": "error",
                "title": "IPv6 (AAAA)",
                "detail": "0 IPv6 address(es) detected.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 0,
                "lost_points": 10
            },
            {
                "level": "ok",
                "title": "Name server redundancy",
                "detail": "4 NS record(s); 2 or more required.",
                "category": "dns",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "SOA record",
                "detail": "Authoritative zone record.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "error",
                "title": "DNSSEC chain",
                "detail": "Both DS and DNSKEY are required.",
                "category": "dns",
                "max_points": 15,
                "earned_points": 0,
                "lost_points": 15
            },
            {
                "level": "ok",
                "title": "CAA policy",
                "detail": "Certificate authority restriction.",
                "category": "dns",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0
            },
            {
                "level": "error",
                "title": "DNS propagation",
                "detail": "Agreement between public resolvers.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 0,
                "lost_points": 10
            },
            {
                "level": "ok",
                "title": "MX records",
                "detail": "5 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": "ok",
                "title": "MTA-STS",
                "detail": "Mail transport policy.",
                "category": "mail",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0
            },
            {
                "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": "199 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": "4 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 16,
                "lost_points": 19
            },
            {
                "level": "ok",
                "title": "PTR reverse DNS",
                "detail": "PTR: server-3-162-163-83.ord56.r.cloudfront.net",
                "category": "network",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0
            },
            {
                "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": "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": {
            "A": [
                "3.162.163.83",
                "3.162.163.3",
                "3.162.163.41",
                "3.162.163.129"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
                "40 aspmx2.googlemail.com.",
                "20 alt1.aspmx.l.google.com.",
                "10 aspmx.l.google.com.",
                "50 aspmx3.googlemail.com.",
                "30 alt2.aspmx.l.google.com."
            ],
            "TXT": [
                "\"google-site-verification=W1P_msJ21dZbYzn9XV2sSYUClXmn-I87PtgZdhIrvIw\"",
                "\"google-site-verification=tjB9d7bD7navivfObMkwk_FNZsKf595G8iKFrYuo8Ho\"",
                "\"v=spf1 include:_spf.google.com include:amazonses.com -all\"",
                "\"facebook-domain-verification=bp2vp1e6cj5ed4g30jkdgt0riud77j\"",
                "\"google-site-verification=SpEAZ82yvfDK4in6esHWzNbwLi2S4QmpYvPRZk4Jyh4\"",
                "\"google-site-verification=uT2Bt1bm14dHvb8fbDZn5DX5leueBAUZ3_t7JxWc55M\""
            ],
            "NS": [
                "ns-1030.awsdns-00.org.",
                "ns-376.awsdns-47.com.",
                "ns-933.awsdns-52.net.",
                "ns-1752.awsdns-27.co.uk."
            ],
            "SOA": [
                "ns-376.awsdns-47.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400"
            ],
            "CAA": [
                "0 issue \"amazontrust.com\"",
                "0 issue \"letsencrypt.org\"",
                "0 issue \"sectigo.com\""
            ],
            "DS": [],
            "DNSKEY": [
                "256 3 13 Vl6trRqM3HBmSPRHss24EXqjxLhsBYeHgNLsYN8TnWK89bUXPrBjsIZm SKdM4zMDceLbDQj2in2DaNCljj3mmw==",
                "256 3 13 0CVTvkXPQbHoOLY3rE7Yt98W7ddJPiGEGidoZxwV1bdt/wHml4RkLbda 5sPbKCSvLBovWCAVq/eqFlm5qPiXxw==",
                "257 3 13 wfb8wQbUypaPTXYVTLDL/HkXJBxLQQDNcJCG5QNRHSDKw2h5r+YRLTaR +VZR09vsw+iN7D/U7ZXce4shIb1Gyg=="
            ],
            "RRSIG": [
                "DNSKEY 13 2 3600 20260811020000 20260810150000 21704 fluentu.com. O3JTlJDeQUO6mWGytmq0HBeZksHD4PPW2OJjfkCJ83NdMaazlN8RPwkM JGorIjJUIlnz/mOk6RS4ysXkSNncPg==",
                "A 13 2 60 20260810195343 20260810175243 62610 fluentu.com. rBtnVJXs5MB4sYu4CcQkg7NQ2uzg9BFWfCsJ0Cf42SWeEh9kjnOUeKYX f3IHFz1JuhJAsroNw9O9pbcglWjbzA==",
                "NS 13 2 172800 20260812183849 20260810163849 62610 fluentu.com. EScKLVADojVTGQ3vQM399EAzNjXzimVASEUM36YaYpXb2UXS+qM24bKf zq6oHxXZTX7iGLNFs9pfWpLcD8SVKw=="
            ],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "3.162.163.83",
            "3.162.163.3",
            "3.162.163.41",
            "3.162.163.129"
        ],
        "ipv6": []
    },
    "mail": {
        "spf": "v=spf1 include:_spf.google.com include:amazonses.com -all",
        "dmarc": "v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email; pct=100;",
        "dkim_selector": "google",
        "dkim_host": "google._domainkey.fluentu.com",
        "dkim": "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC3s2xeYIxPoSph42hPdyk1hMQBuyZjIsMy8Ju9lKnLsAqwkLssAbIUdEAHblw7Vta+R4p3QaC7WYvr8mV2a13SiSNizaDzgjDYKj9MlIBFCcUBZcVl5XTQe9r3tIG1+rFhZmiSN5ydN6K4y3UGO49wFtzjiQ1t0xGrFVKQWiTuPwIDAQAB",
        "spf_analysis": {
            "valid": true,
            "lookups": 2,
            "final": "-all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "reject"
        },
        "bimi": "",
        "mta_sts": "v=STSv1; id=202510011526",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "server-3-162-163-83.ord56.r.cloudfront.net",
        "propagation": {
            "consistent": false,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "54.192.100.19",
                        "54.192.100.24",
                        "54.192.100.34",
                        "54.192.100.5"
                    ],
                    "time_ms": 115.4
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "3.162.163.129",
                        "3.162.163.3",
                        "3.162.163.41",
                        "3.162.163.83"
                    ],
                    "time_ms": 62.24
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "52.84.199.19",
                        "52.84.199.41",
                        "52.84.199.79",
                        "52.84.199.93"
                    ],
                    "time_ms": 92.97
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "54.192.100.19",
                        "54.192.100.24",
                        "54.192.100.34",
                        "54.192.100.5"
                    ],
                    "time_ms": 155.72
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "54.192.100.19",
                        "54.192.100.24",
                        "54.192.100.34",
                        "54.192.100.5"
                    ],
                    "time_ms": 157.84
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "Amazon",
        "subject": "fluentu.com",
        "valid_from": "2026-01-27T18:00:00-06:00",
        "valid_to": "2027-02-25T17:59:59-06:00",
        "days_remaining": 199,
        "san": [
            "fluentu.com",
            "*.fluentu.com"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_128_GCM_SHA256"
    },
    "http": {
        "url": "https://fluentu.com/",
        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
            "content-type": "text/html; charset=UTF-8",
            "date": "Mon, 10 Aug 2026 18:52:45 GMT",
            "server": "Apache",
            "cache-control": "max-age=0, must-revalidate, private",
            "x-frame-options": "SAMEORIGIN",
            "access-control-allow-origin": "https://www.fluentu.com",
            "access-control-allow-credentials": "true",
            "access-control-allow-methods": "GET,POST,PUT",
            "access-control-allow-headers": "Content-Type,X-Requested-With,X-CSRF-TOKEN,X-CSRF-CMS-TOKEN",
            "expires": "Mon, 10 Aug 2026 18:52:45 GMT",
            "set-cookie": "FFSESSID=44iptrapcgcmmcbdcaqkncf0tc; path=/; domain=.fluentu.com; secure; httponly",
            "strict-transport-security": "max-age=31536000; includeSubDomains; preload",
            "x-content-type-options": "nosniff",
            "referrer-policy": "strict-origin-when-cross-origin",
            "x-cache": "Miss from cloudfront",
            "via": "1.1 9f44979371753c2c471cc68585a60f9c.cloudfront.net (CloudFront)",
            "x-amz-cf-pop": "ORD56-P8",
            "x-amz-cf-id": "WTKuqjh8d1WQZqV5o9D_-5vmExB6iX1JJw2GW_GWgVZiy5XV6QoaXw==",
            "x-xss-protection": "1; mode=block"
        },
        "security_checks": {
            "strict-transport-security": true,
            "content-security-policy": false,
            "x-content-type-options": true,
            "x-frame-options": true,
            "referrer-policy": true,
            "permissions-policy": false,
            "cross-origin-opener-policy": false,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": false
        },
        "server": "Apache",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://fluentu.com/",
        "title": "Learn a language online with authentic videos | FluentU",
        "description": "Want to master a new language fast? Discover the ultimate hack: binge TV clips, movie scenes & music videos with subtitles that make learning a breeze.",
        "success": true,
        "error": "",
        "status": 206
    },
    "network": {
        "3.162.163.83": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "3.162.163.3": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "3.162.163.41": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "3.162.163.129": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "aspmx2.googlemail.com",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 1.3,
                "banner": "",
                "error": "Network is unreachable"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 4001.5,
                "banner": "",
                "error": "Connection timed out"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 4021.5,
                "banner": "",
                "error": "Connection timed out"
            }
        ]
    },
    "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": 80.71
}