{
    "ok": true,
    "domain": "vdi.de",
    "generated_at": "2026-08-11T14:28:43-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 85,
        "label": "Good",
        "categories": {
            "dns": 70,
            "mail": 90,
            "security": 96,
            "network": 50,
            "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": 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": "3 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": "1 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": "64 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": 31,
                "lost_points": 4,
                "detail": "8 of 9 evaluated headers detected."
            },
            {
                "category": "network",
                "title": "PTR reverse DNS",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0,
                "detail": "PTR: www.vdi.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": 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": "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": "3 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": "1 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": "64 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": "ok",
                "title": "PTR reverse DNS",
                "detail": "PTR: www.vdi.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": "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": [
                "194.245.143.90"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
                "0 vdi-de.mail.protection.outlook.com."
            ],
            "TXT": [
                "\"google-site-verification=y_SA3Hhau2iAISUhQjKAcnmLmQN3YbsyhCdRG0GLvlA\"",
                "\"cisco-ci-domain-verification=3c041ba7c7ea5521784f0c3f474fe0d8f2b1da32530a50a4c6bfa65f29d54b28\"",
                "\"atlassian-domain-verification=AWlBvar9U21WuoZWUYy0+AQxdz+RAoMK5H+C933JL9sypeZFoSG1TXvddbNDoKDj\"",
                "\"MS=ms30272014\"",
                "\"v=spf1 include:_spf.csl.de include:_spf.vdi.de include:spf.srv2.de include:emarsys.net include:_spf.zimpel.de include:spf.mailjet.com include:spf.de.cancom-mase.com include:spfa.myconvento.com include:spf.protection.outlook.com ~all\"",
                "\"J1Ssm5+JQzN9n8xpNkY3KcYYzHramERmkUbMzqfnj4IBr8LHr3ch/PguicPuF6lBGkbYhzSsAAqF+1t0SOz6/g==\"",
                "\"cisco-ci-domain-verification=d03e8d53db7df663b8eee4e9ad1f5f3de50c26ffb5223a7fdd93feb7139c948\""
            ],
            "NS": [
                "b.ns.nrw.net.",
                "c.ns.nrw.net.",
                "a.ns.nrw.net."
            ],
            "SOA": [
                "a.ns.nrw.net. hostmaster.joker.com. 2026081035 14400 3600 1209600 300"
            ],
            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "194.245.143.90"
        ],
        "ipv6": []
    },
    "mail": {
        "spf": "v=spf1 include:_spf.csl.de include:_spf.vdi.de include:spf.srv2.de include:emarsys.net include:_spf.zimpel.de include:spf.mailjet.com include:spf.de.cancom-mase.com include:spfa.myconvento.com include:spf.protection.outlook.com ~all",
        "dmarc": "v=DMARC1; p=none; sp=none; rua=mailto:dmarc-vdi-report@vdi.de; ruf=mailto:dmarc-vdi-report@vdi.de; fo=s;",
        "dkim_selector": "mailjet",
        "dkim_host": "mailjet._domainkey.vdi.de",
        "dkim": "k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDqd2Ou6yuDEEw83zSo17veITS9aSS23IQ3oTCykxouqxhdDVTOptnU+cX4ahppKdTXvcnDZ3GKZiLDFfsOIyrVfq1OtrFtcFjH14nVJmmdZmaDivbma//elqX2HKGHBAnyfqfVL7p6Dkr+ZufN0H8lSjJdGmBFUEv+m8xRBIpGEwIDAQAB",
        "spf_analysis": {
            "valid": true,
            "lookups": 9,
            "final": "~all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "none"
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "www.vdi.de",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "194.245.143.90"
                    ],
                    "time_ms": 70.68
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "194.245.143.90"
                    ],
                    "time_ms": 109.87
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "194.245.143.90"
                    ],
                    "time_ms": 23.41
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "194.245.143.90"
                    ],
                    "time_ms": 194.47
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "194.245.143.90"
                    ],
                    "time_ms": 334.68
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "Sectigo Limited",
        "subject": "*.vdi.de",
        "valid_from": "2026-03-29T19:00:00-05:00",
        "valid_to": "2026-10-14T18:59:59-05:00",
        "days_remaining": 64,
        "san": [
            "*.vdi.de",
            "vdi.de"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_256_GCM_SHA384"
    },
    "http": {
        "url": "https://www.vdi.de/",
        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
            "date": "Tue, 11 Aug 2026 19:28:33 GMT",
            "content-type": "text/html; charset=utf-8",
            "location": "https://www.vdi.de/",
            "strict-transport-security": "max-age=31536000; includeSubDomains",
            "x-frame-options": "sameorigin",
            "x-content-type-options": "nosniff",
            "x-xss-protection": "0",
            "cache-control": "max-age=0",
            "expires": "Tue, 11 Aug 2026 19:28:33 GMT",
            "content-language": "de-DE",
            "x-typo3-parsetime": "0ms",
            "set-cookie": "LBZ=LBZT2; path=/; secure; HttpOnly; SameSite=Strict",
            "x-ua-compatible": "IE=edge",
            "cross-origin-embedder-policy": "unsafe-none",
            "cross-origin-opener-policy": "same-origin-allow-popups",
            "cross-origin-resource-policy": "cross-origin",
            "permissions-policy": "accelerometer=(), ambient-light-sensor=(), autoplay=(),         battery=(),         camera=(),         display-capture=(), document-domain=(),         encrypted-media=(),         fullscreen=(),         gamepad=(), geolocation=(), gyroscope=(),         layout-animations=(self), legacy-image-formats=(self),         magnetometer=(), microphone=(), midi=(),         oversized-images=(self),         payment=(), picture-in-picture=(), publickey-credentials-get=(),         speaker-selection=(), sync-xhr=(self),         unoptimized-images=(self), unsized-media=(self), usb=(),         screen-wake-lock=(),         web-share=(),         xr-spatial-tracking=()",
            "referrer-policy": "strict-origin-when-cross-origin",
            "x-permitted-cross-domain-policies": "none"
        },
        "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": true,
            "cross-origin-embedder-policy": true,
            "cross-origin-resource-policy": true
        },
        "server": "",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://www.vdi.de/",
        "title": "Verein Deutscher Ingenieure e.V. | VDI",
        "description": "Rund 125.000 Ingenieurinnen und Ingenieure sind Mitglied im größten technisch-wissenschaftlichen Verein Europas, dem VDI.",
        "success": true,
        "error": "",
        "status": 200
    },
    "network": {
        "194.245.143.90": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "vdi-de.mail.protection.outlook.com",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 27.8,
                "banner": "",
                "error": "Network is unreachable"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 4054.4,
                "banner": "",
                "error": "Connection timed out"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 4055.4,
                "banner": "",
                "error": "Connection timed out"
            }
        ]
    },
    "visitor": {
        "ip": "216.73.216.212",
        "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": 87.17
}