{
    "ok": true,
    "domain": "ihk.de",
    "generated_at": "2026-08-09T01:31:58-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 69,
        "label": "Fair",
        "categories": {
            "dns": 70,
            "mail": 90,
            "security": 65,
            "network": 50,
            "availability": 60
        },
        "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": 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": "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": "3 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": 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": "74 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": 0,
                "lost_points": 35,
                "detail": "0 of 9 evaluated headers detected."
            },
            {
                "category": "network",
                "title": "PTR reverse DNS",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0,
                "detail": "PTR: ip145.ip-51-38-104.eu"
            },
            {
                "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": 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": 0,
                "lost_points": 40,
                "detail": "No successful HTTP response."
            },
            {
                "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": "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": "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": "3 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": "74 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": "error",
                "title": "HTTP security headers",
                "detail": "0 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 0,
                "lost_points": 35
            },
            {
                "level": "ok",
                "title": "PTR reverse DNS",
                "detail": "PTR: ip145.ip-51-38-104.eu",
                "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": "error",
                "title": "HTTP response",
                "detail": "No successful HTTP response.",
                "category": "availability",
                "max_points": 40,
                "earned_points": 0,
                "lost_points": 40
            },
            {
                "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": [
                "51.38.104.145"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
                "10 mx04.ihk.de.",
                "10 mx01.ihk.de.",
                "10 mx02.ihk.de."
            ],
            "TXT": [
                "\"google-site-verification=rWKjXH7OcS6g0B_9I-eIe33qR4sAnGVfaV4FBRJwWHw\"",
                "\"google-site-verification=TruOAT1Qi1-QryXOiBB9lwBG12Phw7XChlTjEH1xouk\"",
                "\"QuoVadis=cc229fc2-31d5-46cf-99b4-8755f8d15b5a\"",
                "\"kttt18ef7lsnh95tiuup8l9r0e\"",
                "\"google-site-verification=ZpdJpg3fxYXNbxmf7DYVYLRSGdM1MYxDDlzH6adkMAI\"",
                "\"google-site-verification=_LpFRW84PpjUmnCwnOEoexifGPzca4AijvMq2aLXL54\"",
                "\"google-site-verification=yP_DnHsfI_nCPZpFF4nVRb-ef7gwPLdamZerN29eMVw\"",
                "\"_telesec-domain-validation=344744_2025-01-21_Dy8MlcQBNYTc1KpqQbNNinfC9cBZMlZ3KQsz13OalQKHvfmRsG\"",
                "\"v=spf1 include:spf.ihk.de -all\"",
                "\"MS=ms77180364\"",
                "\"_fy91lk6ci9aipoisysyza6ek6f1mlis\"",
                "\"7yy4xfk410cqd0xxz49hnndnd91hlhf9\"",
                "\"google-site-verification=bl47UJtu3ljo-qz_YPHnowFIHFtSeEKtJjOeZsECgRw \\239\\130\\183\"",
                "\"_telesec-domain-validation=291447_2021-05-17_6e2yqmJog02avKi0q5aGIO30no60rJ14rJvllnl5DR7tjhjH6G\"",
                "\"6beq0m5pkc63dibs00rq4sceoi\"",
                "\"l17yb13fyrs0t2nxpxqknzdqkm5wh7zq\"",
                "\"MS=ms83214784\"",
                "\"fp39i446qc9lcduqbo232jmf32\"",
                "\"q5pp85pv9r2x87knyz9ynjlf1qgy51t6\"",
                "\"zone-ownership-verification-6f14bcc281926358f57fe293dab2fc8d9846859c934faaf0361addba432840b6\"",
                "\"google-site-verification=VcUVAb_MqWdVoJkLbJmIg30J6PMsqLRbsf_dqLM9wEU\"",
                "\"98w03303sfjwm1ybpck46lz053fqk7tn\"",
                "\"D-TRUST=GCGPR7ANA6M8SQK2FUGDRGU\"",
                "\"_telesec-domain-validation=319344_2023-04-26_8DNAuW8PJDk9exAoZDrmrMw7cY1EPgTl2TFBgSlPGhpaYBL94k\"",
                "\"558jhlsbmmw9fb739l0hc4wpcfmzvv4h\"",
                "\"google-site-verification=o4iQp85t9ngMmlC1kiOB39qDPCzCi0iOw2uXl0b5LZ0\""
            ],
            "NS": [
                "b.ns14.net.",
                "c.ns14.net.",
                "ns1.ihk.de.",
                "ns2.ihk.de.",
                "d.ns14.net."
            ],
            "SOA": [
                "ns1.ihk.de. domain.gfi.ihk.de. 3909109876 10800 3600 1209600 3600"
            ],
            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "51.38.104.145"
        ],
        "ipv6": []
    },
    "mail": {
        "spf": "v=spf1 include:spf.ihk.de -all",
        "dmarc": "v=DMARC1; p=reject; rua=mailto:dmarc-reports@gfi.ihk.de; adkim=r; aspf=r; sp=none;",
        "dkim_selector": "selector1",
        "dkim_host": "selector1._domainkey.ihk.de",
        "dkim": "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1GTBmHECoqXiZKgV4y5M66avUzdmjk0T11TKPUjIwQYHSvZFpH79eqy2w2Jdw/uU1jcdcTxkzdkBbb6B7g8OXaFUf/RbEEhtT3ya8CnH5hrGE2FNQ33R/uT2Ag3a2ARs7t84VSkePyI6NZGHgBN083aHhyl2AulpQD5ZCmWPin0MIcfF7eJiceQ+Hqzxy6Gi/eEgfJrhm6Yl2+/iFSWhUz0XlgSWbOcyItqxwrmM6Qb6DYBqwFKvPIR/dZOS36P5XKV0pHnmNz4K9pkuOFHkZ7pTXvOQbYPcGyILsX8PZcUHB6xZ1HAuB1oy9WUgz9DIlfpkr/5rMClsfjsqpVGrEQIDAQAB;",
        "spf_analysis": {
            "valid": true,
            "lookups": 1,
            "final": "-all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "reject"
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "ip145.ip-51-38-104.eu",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "51.38.104.145"
                    ],
                    "time_ms": 113.32
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "51.38.104.145"
                    ],
                    "time_ms": 165.91
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "51.38.104.145"
                    ],
                    "time_ms": 161.79
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "51.38.104.145"
                    ],
                    "time_ms": 65.3
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "51.38.104.145"
                    ],
                    "time_ms": 163.62
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "D-Trust GmbH",
        "subject": "ihk.de",
        "valid_from": "2026-04-07T04:04:39-05:00",
        "valid_to": "2026-10-22T04:04:39-05:00",
        "days_remaining": 74,
        "san": [
            "ihk.de",
            "www.ihk.de"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_256_GCM_SHA384"
    },
    "http": {
        "url": "https://www.ihk.de/",
        "status": "",
        "http_version": "2",
        "headers": [],
        "security_checks": {
            "strict-transport-security": false,
            "content-security-policy": false,
            "x-content-type-options": false,
            "x-frame-options": false,
            "referrer-policy": false,
            "permissions-policy": false,
            "cross-origin-opener-policy": false,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": false
        },
        "server": "",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://www.ihk.de/",
        "title": "Startseite\n- IHK",
        "description": "",
        "success": true,
        "error": "",
        "status": 206
    },
    "network": {
        "51.38.104.145": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "mx04.ihk.de",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 8.4,
                "banner": "",
                "error": "Connection refused"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 4019.1,
                "banner": "",
                "error": "Connection timed out"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 122.9,
                "banner": "554-mx04.ihk.de",
                "error": "No connection"
            }
        ]
    },
    "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": 82.05
}