{
    "ok": true,
    "domain": "buchmesse.de",
    "generated_at": "2026-08-11T12:44:49-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 83,
        "label": "Good",
        "categories": {
            "dns": 80,
            "mail": 65,
            "security": 84,
            "network": 85,
            "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": "1 IPv4 address(es) detected."
            },
            {
                "category": "dns",
                "title": "IPv6 (AAAA)",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "1 IPv6 address(es) detected."
            },
            {
                "category": "dns",
                "title": "Name server redundancy",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "5 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": 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)."
            },
            {
                "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": 0,
                "lost_points": 25,
                "detail": "DMARC policy not found."
            },
            {
                "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": 0,
                "lost_points": 5,
                "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": "53 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": 19,
                "lost_points": 16,
                "detail": "5 of 9 evaluated headers detected."
            },
            {
                "category": "network",
                "title": "PTR reverse DNS",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0,
                "detail": "PTR: www.buchmesse.de"
            },
            {
                "category": "network",
                "title": "IPv4 diversity",
                "max_points": 35,
                "earned_points": 20,
                "lost_points": 15,
                "detail": "Two or more IPv4 addresses receive full points."
            },
            {
                "category": "network",
                "title": "IPv6 connectivity",
                "max_points": 35,
                "earned_points": 35,
                "lost_points": 0,
                "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": "1 IPv4 address(es) detected.",
                "category": "dns",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "IPv6 (AAAA)",
                "detail": "1 IPv6 address(es) detected.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "Name server redundancy",
                "detail": "5 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": "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": "error",
                "title": "DMARC",
                "detail": "DMARC policy not found.",
                "category": "mail",
                "max_points": 25,
                "earned_points": 0,
                "lost_points": 25
            },
            {
                "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": "53 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: www.buchmesse.de",
                "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": "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": "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": [
                "217.68.7.25"
            ],
            "AAAA": [
                "2a02:328:2:7::25"
            ],
            "CNAME": [],
            "MX": [
                "10 mx-01.booklan.de.",
                "10 mx-02.booklan.de."
            ],
            "TXT": [
                "\"v=spf1 mx include:spf.protection.outlook.com ip4:62.138.244.13 ip4:94.16.98.139 ip4:94.16.98.140 ip4:94.16.98.183 ip4:94.16.98.184 include:spf.de.umantis.com include:amazonses.com ip4:87.118.123.64 ip4:116.202.246.214 ip4:54.246.220.150 ip4:54.246.224.90 \" \"ip6:2a01:4f8:241:4464::2 ~all\"",
                "\"j/FUqeEFfCX81vwMp4mbGr5D0dhur/7l36JBhzQuAGGWto09BKG/20ZkojvU0/S2BkSVpP5lrOWK7fpwAjNeaQ==\"",
                "\"atlassian-domain-verification=u9colUwdLh4eDa1siJsnHzYBTWLRM/VLZve0hifQO7aSHKWuydK28KAxYgx8dFT3\"",
                "\"MS=ms78153737\"",
                "\"facebook-domain-verification=uvontj7hg3ccxsgyy56rm7aj8ioswh\""
            ],
            "NS": [
                "anexia.thirdns.de.",
                "anexia.firstns.cc.",
                "anexia.fourthns.systems.",
                "anexia.fifthns.com.",
                "anexia.secondns.at."
            ],
            "SOA": [
                "anexia.firstns.cc. support.anexia.at. 48 86400 7200 3600000 600"
            ],
            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [
                ";; communications error to 69.64.44.20#53: timed out"
            ],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "217.68.7.25"
        ],
        "ipv6": [
            "2a02:328:2:7::25"
        ]
    },
    "mail": {
        "spf": "v=spf1 mx include:spf.protection.outlook.com ip4:62.138.244.13 ip4:94.16.98.139 ip4:94.16.98.140 ip4:94.16.98.183 ip4:94.16.98.184 include:spf.de.umantis.com include:amazonses.com ip4:87.118.123.64 ip4:116.202.246.214 ip4:54.246.220.150 ip4:54.246.224.90 ip6:2a01:4f8:241:4464::2 ~all",
        "dmarc": "",
        "dkim_selector": "selector1",
        "dkim_host": "selector1._domainkey.buchmesse.de",
        "dkim": "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAycDGlU+n93R8C8kyps1dDP45oVEFDb0xm4QMMdhOD/O3Wn8hby85bI7Bo5v7WDdtqNRcNEBsu6nIJfmq4IM1ziBJkQxL3AhdTcVaKUaNQAERMOgbCuSsEq3G1VlERK6H1WZGCA89aiYO6CsB4s4BX6GVKPK2/iROwWOvPqT1eds1sGMFcasahZa1vA/I/QB+F2zTgrRGpuNJoqfsFvR9gt+MpNGcn4/fzs3mlOH7+RI2/Emtc4NOKdxsOQ5++7pYJVPAYxSueiRTmJ++fMtdNEOTAdWEqfHQZ1VNePTBhozHHWV2p+PA7uwcFMXGYGO2yfszFJjVNZZKUZ6xQm+pTQIDAQAB;",
        "spf_analysis": {
            "valid": true,
            "lookups": 4,
            "final": "~all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": false,
            "policy": ""
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "www.buchmesse.de",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "217.68.7.25"
                    ],
                    "time_ms": 181.3
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "217.68.7.25"
                    ],
                    "time_ms": 142.24
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "217.68.7.25"
                    ],
                    "time_ms": 173.26
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "217.68.7.25"
                    ],
                    "time_ms": 424.75
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "217.68.7.25"
                    ],
                    "time_ms": 227.26
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "Sectigo Limited",
        "subject": "*.buchmesse.de",
        "valid_from": "2025-09-01T19:00:00-05:00",
        "valid_to": "2026-10-03T18:59:59-05:00",
        "days_remaining": 53,
        "san": [
            "*.buchmesse.de",
            "buchmesse.de"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_128_GCM_SHA256"
    },
    "http": {
        "url": "https://www.buchmesse.de/",
        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
            "location": "https://www.buchmesse.de/",
            "content-length": "142026",
            "date": "Tue, 11 Aug 2026 15:41:41 GMT",
            "cache-control": "max-age=1800, public",
            "content-language": "de",
            "content-type": "text/html; charset=UTF-8",
            "etag": "\"1786462900\"",
            "expires": "Sun, 19 Nov 1978 05:00:00 GMT",
            "last-modified": "Tue, 11 Aug 2026 15:41:40 GMT",
            "permissions-policy": "accelerometer=(), ambient-light-sensor=(), autoplay=*, bluetooth=(), fullscreen=*, geolocation=*, microphone=(), picture-in-picture=*",
            "referrer-policy": "strict-origin-when-cross-origin",
            "strict-transport-security": "max-age=63072000; includeSubDomains; preload",
            "vary": "Cookie",
            "x-commerce-core": "3",
            "x-content-options": "nosniff",
            "x-content-type-options": "nosniff",
            "x-drupal-dynamic-cache": "MISS",
            "x-frame-options": "SAMEORIGIN",
            "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": true,
            "cross-origin-opener-policy": false,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": false
        },
        "server": "",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://www.buchmesse.de/",
        "title": "Frankfurter Buchmesse | Home",
        "description": "",
        "success": true,
        "error": "",
        "status": 200
    },
    "network": {
        "217.68.7.25": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "mx-01.booklan.de",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 106.7,
                "banner": "",
                "error": "Connection refused"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 4146.3,
                "banner": "",
                "error": "Connection timed out"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 4012.7,
                "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": 85.19
}