{
    "ok": true,
    "domain": "sidn.nl",
    "generated_at": "2026-08-11T19:51:00-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 96,
        "label": "Excellent",
        "categories": {
            "dns": 100,
            "mail": 100,
            "security": 88,
            "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": "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": 15,
                "lost_points": 0,
                "detail": "DS and DNSKEY detected."
            },
            {
                "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": 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": 5,
                "lost_points": 0,
                "detail": "Mail transport policy."
            },
            {
                "category": "mail",
                "title": "TLS-RPT",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0,
                "detail": "TLS reporting policy."
            },
            {
                "category": "security",
                "title": "Valid TLS certificate",
                "max_points": 55,
                "earned_points": 55,
                "lost_points": 0,
                "detail": "86 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": 23,
                "lost_points": 12,
                "detail": "6 of 9 evaluated headers detected."
            },
            {
                "category": "network",
                "title": "PTR reverse DNS",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0,
                "detail": "PTR: 63.90.111.34.bc.googleusercontent.com"
            },
            {
                "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."
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                "category": "availability",
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                "earned_points": 40,
                "lost_points": 0,
                "detail": "At least one address family must resolve."
            },
            {
                "category": "availability",
                "title": "HTTP response",
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                "earned_points": 40,
                "lost_points": 0,
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            },
            {
                "category": "availability",
                "title": "HTTPS final URL",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "Final URL uses HTTPS."
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        ],
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        "diagnostics": [
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                "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",
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                "category": "dns",
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                "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": "ok",
                "title": "DNSSEC chain",
                "detail": "DS and DNSKEY detected.",
                "category": "dns",
                "max_points": 15,
                "earned_points": 15,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "CAA policy",
                "detail": "Certificate authority restriction.",
                "category": "dns",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0
            },
            {
                "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": "ok",
                "title": "MTA-STS",
                "detail": "Mail transport policy.",
                "category": "mail",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "TLS-RPT",
                "detail": "TLS reporting policy.",
                "category": "mail",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "Valid TLS certificate",
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                "category": "security",
                "max_points": 55,
                "earned_points": 55,
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            },
            {
                "level": "ok",
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                "earned_points": 10,
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            },
            {
                "level": "warning",
                "title": "HTTP security headers",
                "detail": "6 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 23,
                "lost_points": 12
            },
            {
                "level": "ok",
                "title": "PTR reverse DNS",
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                "category": "network",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0
            },
            {
                "level": "warning",
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                "earned_points": 20,
                "lost_points": 15
            },
            {
                "level": "ok",
                "title": "IPv6 connectivity",
                "detail": "AAAA availability.",
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                "max_points": 35,
                "earned_points": 35,
                "lost_points": 0
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            {
                "level": "ok",
                "title": "DNS resolution",
                "detail": "At least one address family must resolve.",
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                "max_points": 40,
                "earned_points": 40,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "HTTP response",
                "detail": "HTTP/2 200 ",
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                "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": {
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                "34.111.90.63"
            ],
            "AAAA": [
                "2600:1901:0:8ca2::"
            ],
            "CNAME": [],
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                "\"google-site-verification=nGdTpBOjSS2sHxxqhEE9Tj3xcK5X4-lF9YLqtYmXbwI\""
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            "NS": [
                "ns2.sidn.nl.",
                "ns3.sidn.nl.",
                "ns1.sidn.nl."
            ],
            "SOA": [
                "ns3.sidn.nl. hostmaster.sidn.nl. 1784213127 14400 3600 3456000 300"
            ],
            "CAA": [
                "0 issue \"pki.goog; cansignhttpexchanges=yes\"",
                "0 issuemail \"harica.gr\"",
                "0 iodef \"mailto:abuse@sidn.nl\"",
                "0 issue \"quovadisglobal.com\"",
                "0 issue \"digicert.com; cansignhttpexchanges=yes\"",
                "0 issue \"harica.gr\"",
                "0 issue \"letsencrypt.org\"",
                "0 issue \"sectigo.com\""
            ],
            "DS": [
                "62949 13 2 FBF66B8D019C1EEC2779B7DBFBFF090CA0F3704DCBD8D76AA8097418 6F110E91"
            ],
            "DNSKEY": [
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            "NSEC": [
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            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "34.111.90.63"
        ],
        "ipv6": [
            "2600:1901:0:8ca2::"
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            "lookups": 6,
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            "message": "Within the estimated limit"
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            "policy": "reject"
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            "consistent": true,
            "results": [
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                    "provider": "Google",
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                    "time_ms": 112.41
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                    "provider": "Cloudflare",
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                    "time_ms": 56.27
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                    "provider": "Quad9",
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                    "time_ms": 39.86
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                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
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                    ],
                    "time_ms": 50.6
                },
                {
                    "provider": "AdGuard",
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                    "time_ms": 278
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    },
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        "issuer": "Hellenic Academic and Research Institutions CA",
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        "valid_to": "2026-11-06T08:21:37-06:00",
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        "cipher": "TLS_AES_256_GCM_SHA384"
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            "content-type": "text/html",
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            "referrer-policy": "strict-origin-when-cross-origin",
            "strict-transport-security": "max-age=63113904",
            "x-content-type-options": "nosniff",
            "x-dns-prefetch-control": "off",
            "x-frame-options": "SAMEORIGIN",
            "x-permitted-cross-domain-policies": "none",
            "x-xss-protection": "0",
            "permissions-policy": "camera=(), microphone=()",
            "reporting-endpoints": "default=\"https://sidn-nl.uriports.com/reports\"",
            "nel": "{\"report_to\":\"default\",\"max_age\":2592000,\"include_subdomains\":true,\"failure_fraction\":1.0}",
            "cross-origin-embedder-policy-report-only": "unsafe-none; report-to=\"default\"",
            "cross-origin-opener-policy-report-only": "unsafe-none; report-to=\"default\"",
            "location": "https://www.sidn.nl/",
            "x-cloud-trace-context": "2734ad6a372b39b2af860b7c8d0fd737;o=1",
            "via": "1.1 google",
            "alt-svc": "h3=\":443\"; ma=2592000,h3-29=\":443\"; ma=2592000",
            "vary": "Accept-Encoding",
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            "cache-control": "max-age=600",
            "etag": "623faff45b013b799f3de59300a8f4bc"
        },
        "security_checks": {
            "strict-transport-security": true,
            "content-security-policy": true,
            "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": "openresty",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://www.sidn.nl/",
        "title": "Zorgeloos online | SIDN",
        "description": "Bij SIDN check je de beschikbaarheid van een .nl-domeinnaam. Wij bieden je ook securityoplossingen, zoals SIDN Merkbewaking.",
        "success": true,
        "error": "",
        "status": 200
    },
    "network": {
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