{
    "ok": true,
    "domain": "immowelt.de",
    "generated_at": "2026-08-10T08:02:42-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 71,
        "label": "Fair",
        "categories": {
            "dns": 60,
            "mail": 90,
            "security": 77,
            "network": 65,
            "availability": 60
        },
        "category_weights": {
            "dns": 25,
            "mail": 20,
            "security": 25,
            "network": 10,
            "availability": 20
        },
        "items": [
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                "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",
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                "earned_points": 10,
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                "detail": "Authoritative zone record."
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            {
                "category": "dns",
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                "earned_points": 0,
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                "category": "dns",
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                "detail": "Certificate authority restriction."
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            {
                "category": "dns",
                "title": "DNS propagation",
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                "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)."
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            {
                "category": "mail",
                "title": "SPF",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0,
                "detail": "SPF policy published."
            },
            {
                "category": "mail",
                "title": "DMARC",
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                "earned_points": 25,
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                "detail": "DMARC policy published."
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            {
                "category": "mail",
                "title": "DKIM",
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                "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",
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                "earned_points": 55,
                "lost_points": 0,
                "detail": "145 day(s) remaining."
            },
            {
                "category": "security",
                "title": "Certificate lifetime",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
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            },
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                "category": "security",
                "title": "HTTP security headers",
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                "earned_points": 12,
                "lost_points": 23,
                "detail": "3 of 9 evaluated headers detected."
            },
            {
                "category": "network",
                "title": "PTR reverse DNS",
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                "earned_points": 30,
                "lost_points": 0,
                "detail": "PTR: server-3-170-131-29.cmh68.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": 0,
                "lost_points": 40,
                "detail": "HTTP/2 403 "
            },
            {
                "category": "availability",
                "title": "HTTPS final URL",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "Final URL uses HTTPS."
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        ],
        "methodology": "Each category is normalized to 100. The total is the weighted sum: DNS 25%, Email 20%, Security 25%, Network 10%, Availability 20%.",
        "diagnostics": [
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                "level": "ok",
                "title": "IPv4 (A)",
                "detail": "4 IPv4 address(es) detected.",
                "category": "dns",
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                "earned_points": 30,
                "lost_points": 0
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            {
                "level": "error",
                "title": "IPv6 (AAAA)",
                "detail": "0 IPv6 address(es) detected.",
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                "earned_points": 0,
                "lost_points": 10
            },
            {
                "level": "ok",
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            {
                "level": "ok",
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                "max_points": 10,
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            },
            {
                "level": "error",
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                "max_points": 15,
                "earned_points": 0,
                "lost_points": 15
            },
            {
                "level": "error",
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                "detail": "Certificate authority restriction.",
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                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5
            },
            {
                "level": "error",
                "title": "DNS propagation",
                "detail": "Agreement between public resolvers.",
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                "max_points": 10,
                "earned_points": 0,
                "lost_points": 10
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            {
                "level": "ok",
                "title": "MX records",
                "detail": "5 MX record(s).",
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            {
                "level": "ok",
                "title": "SPF",
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                "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.",
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                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            },
            {
                "level": "error",
                "title": "MTA-STS",
                "detail": "Mail transport policy.",
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                "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": "145 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": "3 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 12,
                "lost_points": 23
            },
            {
                "level": "ok",
                "title": "PTR reverse DNS",
                "detail": "PTR: server-3-170-131-29.cmh68.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": "error",
                "title": "HTTP response",
                "detail": "HTTP/2 403 ",
                "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
            }
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    },
    "dns": {
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                "\"google-site-verification=L5UMWugWvAevDCpTdmo4ru3ypkop7s3UcK_VaoIoowA\"",
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                "\"google-site-verification=kMDBpiKTL1zDhqJrXp3PDDYusdS23CHSFhA3w1okWP0\"",
                "\"_4uu3hcsydjp06aygym8em04y63h17o0\"",
                "\"apple-domain-verification=eogvEheavBWFIfHT\"",
                "\"atlassian-domain-verification=/LjAf2HBkwXmDGzj6L51nlpUQk0HSdDZN90CUn5i0NeKKFHxOAICEbnC3MyrubQK\""
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                "ns-1797.awsdns-32.co.uk.",
                "ns-260.awsdns-32.com.",
                "ns-1233.awsdns-26.org."
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            "SOA": [
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            ],
            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
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            "3.170.131.54",
            "3.170.131.108",
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        "ipv6": []
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        "dkim_selector": "google",
        "dkim_host": "google._domainkey.immowelt.de",
        "dkim": "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCB/Ta/SphnA55E3DiuAz6bKKyH75+4mjiFO0Fnq0LsLWFmaHGhqkq4YCZPG+yDYPdxAM4v4ogyP6UJRyGdCaFqW8pwZObMjIB9Z0mp+O37x2ei1WvkFm4zMaWVjDhGYkqaGLUTFGysC9ltIav0dQ9QjyeUzFXNO139CP51cHJX2QIDAQAB",
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            "valid": true,
            "lookups": 8,
            "final": "-all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "none"
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        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
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        "valid_to": "2027-01-02T17:59:59-06:00",
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        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_128_GCM_SHA256"
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    "http": {
        "url": "https://www.immowelt.de/",
        "status": "HTTP/2 403 ",
        "http_version": "3",
        "headers": {
            "content-length": "774",
            "location": "https://www.immowelt.de/",
            "date": "Mon, 10 Aug 2026 13:02:33 GMT",
            "server": "CloudFront",
            "x-cache": "LambdaGeneratedResponse from cloudfront",
            "via": "1.1 0f0dfcf3a39cb7b746228a61c7c560ac.cloudfront.net (CloudFront)",
            "x-amz-cf-pop": "ORD56-P16",
            "x-amz-cf-id": "nxFsPdJ-COTuiYwh6AocYZnTk3LY5-GMitJ4-LxVAVdxoQDsgUIuVQ==",
            "age": "71658",
            "content-type": "text/html;charset=utf-8",
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            "accept-ch": "Sec-CH-UA,Sec-CH-UA-Mobile,Sec-CH-UA-Platform,Sec-CH-UA-Arch,Sec-CH-UA-Full-Version-List,Sec-CH-UA-Model,Sec-CH-Device-Memory",
            "charset": "utf-8",
            "cache-control": "max-age=0, private, no-cache, no-store, must-revalidate",
            "pragma": "no-cache",
            "x-datadome-cid": "AHrlqAAAAAMAqwbb0YKYpdcA0X5mjw==",
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            "x-frame-options": "SAMEORIGIN",
            "x-content-type-options": "nosniff",
            "strict-transport-security": "max-age=31536000"
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            "content-security-policy": false,
            "x-content-type-options": true,
            "x-frame-options": true,
            "referrer-policy": false,
            "permissions-policy": false,
            "cross-origin-opener-policy": false,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": false
        },
        "server": "CloudFront",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://www.immowelt.de/",
        "title": "immowelt.de",
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        "success": true,
        "error": "",
        "status": 403
    },
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            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
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            "isp": ""
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        "city": "",
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        "longitude": null,
        "isp": "",
        "organization": "",
        "asn": "",
        "timezone": "",
        "browser": "Other",
        "os": "Other",
        "language": "",
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        "cloudflare": false
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}