{
    "ok": true,
    "domain": "knaw.nl",
    "generated_at": "2026-08-09T19:36:53-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 81,
        "label": "Good",
        "categories": {
            "dns": 100,
            "mail": 90,
            "security": 65,
            "network": 100,
            "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": "2 IPv4 address(es) detected."
            },
            {
                "category": "dns",
                "title": "IPv6 (AAAA)",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "2 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",
                "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": 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": "123 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: a17f617dc3bf391dc.awsglobalaccelerator.com"
            },
            {
                "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": 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": 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."
            }
        ],
        "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": "2 IPv4 address(es) detected.",
                "category": "dns",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "IPv6 (AAAA)",
                "detail": "2 IPv6 address(es) detected.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "Name server redundancy",
                "detail": "4 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": "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": "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": "123 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: a17f617dc3bf391dc.awsglobalaccelerator.com",
                "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": "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": "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
            }
        ]
    },
    "dns": {
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                "75.2.96.239"
            ],
            "AAAA": [
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            "CNAME": [],
            "MX": [
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            ],
            "TXT": [
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                "\"apple-domain-verification=Kx3upsCHpUwCVztU\"",
                "\"bw=PyPBZFeE2tQkoeBRxXYmeBuS3uLfkdcUswjyyL973iS6\"",
                "\"google-site-verification=HfgEEpjNWwaecSYe8KnNATWfrzAExHVBlvTsuA7kGnk\"",
                "\"HARICA-vvDQGK7pd3xxArhCoJD\"",
                "\"adobe-idp-site-verification=e574ceb69375114ec72f4bc11ec46141ec4c1c194117b84d37a333c9a1375d04\"",
                "\"atlassian-domain-verification=9CeGC9xO7peuiHdqk16OTwnXaYfFs3iy9LGVIXxD/OxiJfEJahXbqX7Q5jrUrqJ2\"",
                "\"google-site-verification=94L39qL06lBH7le4wa74Yq2Me0ByOxWwLc7WdL8AA3s\"",
                "\"v=spf1 include:spf.protection.outlook.com include:_spf.knaw.nl include:servers.mcsv.net ip4:5.39.185.32/29 ip4:185.181.140.187 ip4:87.253.234.71 ip4:87.253.234.73 ip4:87.253.234.85 include:spam1.htx.nl include:spf.mailjet.com include:_spf-dc55.sapsf.eu  i\" \"nclude:spf.topdesk.net -all\"",
                "\"google-site-verification=PA5clm1yBwUuQdkN5N0q_7xjZWXFMLR8nB2gLkVtX-A\"",
                "\"procurios-site-verification=gagUhW73NFSdoza3Vaj3\"",
                "\"have-i-been-pwned-verification=b1fd016e7cf47b73cf71b12f8ed10003\""
            ],
            "NS": [
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                "ns1.surfnet.nl.",
                "ns2.surfnet.nl.",
                "ns1.zurich.surf.net."
            ],
            "SOA": [
                "ns1.surfnet.nl. dns-beheer.surf.nl. 2026080602 10800 3600 604800 3600"
            ],
            "CAA": [
                "0 issue \"letsencrypt.org\"",
                "0 issue \"amazonaws.com\"",
                "0 issuewild \"harica.gr\"",
                "0 issue \"harica.gr\"",
                "0 iodef \"mailto:knawnet@knaw.nl\""
            ],
            "DS": [
                "61177 13 2 60DBB9E2AC8D467BB6DABDB4A3E27EBEBEA7F95B43D4B59362AF143F A8240F33"
            ],
            "DNSKEY": [
                "257 3 13 7TrO2X2INbsCYV+tnGjJpoTkilUYo0jyXprwNn2RLjVMMSNzqBASh9oA pdEJZmZLFdMqeCqx6netIakUwvO/rw=="
            ],
            "RRSIG": [
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                "TXT 13 2 3600 20260820000000 20260730000000 61177 knaw.nl. KpZfuyA5n3VmZrmT7bvPdAOKFonhYhmR0wTcTUXckaYv7+fb7AWIORXc Z90G9vbnYthIOcFQl2xXtol30ueSpA==",
                "A 13 2 300 20260820000000 20260730000000 61177 knaw.nl. 0O5M7/ILXekdhby69csiYqffq9JQ8kyuVmjBUNKFCNleWIr6lWXX5E2P cXyC9SYFdIyz3/qW2o2KZo3zG/Lv6w==",
                "DS 13 2 3600 20260901094505 20260804043802 467 nl. pLCol/E3m2zzyrjMCjAAWaRU6GVfmI9hq3SdxRDYXTTiK7EoTOSqUBag mRxHj5VLfg3hw16l9pcCf5AuND/7Vw==",
                "CAA 13 2 3600 20260820000000 20260730000000 61177 knaw.nl. B+zc0hnMeTIC3VVhzegO9LgCn5kYkkTI04N88TtIuqqm8e8NgipEdjwQ 9VrHjhReQbpJZvbE8ugbqJIfQvlgdg=="
            ],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "99.83.229.36",
            "75.2.96.239"
        ],
        "ipv6": [
            "2600:9000:a603:d4ab:3b46:6664:541:3b6c",
            "2600:9000:a715:397e:a2c2:110b:23d8:9a4f"
        ]
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    "mail": {
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        "dmarc": "v=DMARC1; p=quarantine; rua=mailto:dmarc@knaw.nl; rf=iodef;",
        "dkim_selector": "selector1",
        "dkim_host": "selector1._domainkey.knaw.nl",
        "dkim": "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDFyVfURHJYiM/vI+GECQ7wlLvlAJg2zcPvzUMyK9yyHBTjEStv5UG/SFlW8AEkfid5o684z3V/NpBbvb+f1A0T+mz5LfBzjZlHVfrBmz0Q2XpNExwsi//3I5lm+2ByBHXoFB1GaPAZSPgQUhwSxnyUmNQ3XYC+XEKeT/K6uvaNtQIDAQAB; n=1024,1470427763,1486325363",
        "spf_analysis": {
            "valid": true,
            "lookups": 7,
            "final": "-all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "quarantine"
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "a17f617dc3bf391dc.awsglobalaccelerator.com",
        "propagation": {
            "consistent": true,
            "results": [
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                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
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                    ],
                    "time_ms": 261.62
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
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                        "99.83.229.36"
                    ],
                    "time_ms": 267.72
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
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                        "99.83.229.36"
                    ],
                    "time_ms": 268.83
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
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                        "99.83.229.36"
                    ],
                    "time_ms": 234.44
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
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                        "99.83.229.36"
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                    "time_ms": 128.14
                }
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    "ssl": {
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        "issuer": "Hellenic Academic and Research Institutions CA",
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        "valid_from": "2025-12-11T02:38:23-06:00",
        "valid_to": "2026-12-11T02:38:23-06:00",
        "days_remaining": 123,
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            "api.knaw.nl",
            "www.api.knaw.nl",
            "acc.knaw.nl",
            "www.acc.knaw.nl",
            "acc.api.knaw.nl",
            "www.acc.api.knaw.nl",
            "prd.api.knaw.nl",
            "www.prd.api.knaw.nl",
            "prd.cms21.knaw.nl",
            "www.prd.cms21.knaw.nl",
            "cms21.knaw.nl",
            "www.cms21.knaw.nl"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_128_GCM_SHA256"
    },
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        "url": "https://knaw.nl/",
        "status": "HTTP/2 403 ",
        "http_version": "3",
        "headers": {
            "server": "awselb/2.0",
            "date": "Mon, 10 Aug 2026 00:36:43 GMT",
            "content-type": "text/html",
            "content-length": "118"
        },
        "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": "awselb/2.0",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://www.knaw.nl/",
        "title": "",
        "description": "Welkom bij de Koninklijke Nederlandse Akademie van Wetenschappen",
        "success": true,
        "error": "",
        "status": 200
    },
    "network": {
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            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "75.2.96.239": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "knaw-nl.mail.protection.outlook.com",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 25.4,
                "banner": "",
                "error": "Network is unreachable"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 4089.1,
                "banner": "",
                "error": "Connection timed out"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 4021.3,
                "banner": "",
                "error": "Connection timed out"
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        ]
    },
    "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": 86.9
}