{
    "ok": true,
    "domain": "nsf.org",
    "generated_at": "2026-08-09T11:36:47-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 68,
        "label": "Fair",
        "categories": {
            "dns": 70,
            "mail": 90,
            "security": 73,
            "network": 20,
            "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": "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": 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": "47 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": 8,
                "lost_points": 27,
                "detail": "2 of 9 evaluated headers detected."
            },
            {
                "category": "network",
                "title": "PTR reverse DNS",
                "max_points": 30,
                "earned_points": 0,
                "lost_points": 30,
                "detail": "PTR not detected."
            },
            {
                "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": "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": "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": "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": "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": "47 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": "2 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 8,
                "lost_points": 27
            },
            {
                "level": "error",
                "title": "PTR reverse DNS",
                "detail": "PTR not detected.",
                "category": "network",
                "max_points": 30,
                "earned_points": 0,
                "lost_points": 30
            },
            {
                "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": "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": {
        "records": {
            "A": [
                "52.191.90.193"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
                "5 nsf-org.mail.protection.outlook.com."
            ],
            "TXT": [
                "\"ugh449ndrp4i60l1ruv4q8aupd\"",
                "\"autodesk-domain-verification=ZCKDKFc4dgit10Uq-txa\"",
                "\"canva-site-verification=NOFRCUS081NF0TlEGmXJcQ\"",
                "\"safetyculture-domain-verification=68bcf875-43d2-435d-9969-dce724c47cc4\"",
                "\"tk9mvtl3901ffvpi0tbnsk5jqj\"",
                "\"u3v844b3fg0ge2314ua9919r62\"",
                "\"docusign=ab819224-75ac-43dd-95ae-08d69e8bd78d\"",
                "\"s26kf6v1mjeg812p60b19mbst4\"",
                "\"1q49kqja4am9kgupqfo060qmcs\"",
                "\"smartsheet-site-validation=DYk5QZldvWM5v01o358AYWqFZVZ1acSS\"",
                "\"google-site-verification=mKykxWjJVpocG5TrdNzbvefPeIaLsQ0rmVZydgCBrcA\"",
                "\"387jmbgjbgcv5n86ndh8e49jg2\"",
                "\"7b5leh2edjld7c9i456263sefh\"",
                "\"pardot129231=04e1510eb4cfea87f7485b5685239f6f6632bda937174b8ec12daf55d23b869d\"",
                "\"bjminfq1icoetq38mbkhd4hoel\"",
                "\"rrnbflrgcrk4vhg5dmku8at32p\"",
                "\"434efdpcrkhm5u5sl3fk4krb3t\"",
                "\"ndO7VtEdqTir+XPYpzN/wdry8O/+MwA/g1P87dmcsBtUOIwGldqpJPyPitUhbFNhDZcLy6K+7rPowA0PXcMBtA==\"",
                "\"prowly-verification=163a4d39e4a1f88aabf636d968ad0d3efc064f6cf3d770b28d0acfb99783c6f7\"",
                "\"jc6koiadq6c78a8cpfohrl467v\"",
                "\"v=spf1 include:spf.nsf.org include:_spf.google.com include:spf.protection.outlook.com include:cust-spf.exacttarget.com include:amazonses.com include:app.sgizmo.com -all\"",
                "\"asv=21e3a6b2c0d9bd15502f037514c25a04\"",
                "\"msfpkey=30bevn2yzk88kcbgdzzjq31xx\"",
                "\"gnpbvr5h52crbq9qgqtf8sh6bc\"",
                "\"MS=ms61798524\"",
                "\"Dynatrace-site-verification=2a02c0c1-1757-479e-afae-2721d281ea3b__l3r442j0dep4nigp8on3v1ru13\"",
                "\"google-site-verification=TkWGAQS0X798tQMnGqXYi-eqzbbLHecBkxF2XVbDMEw\"",
                "\"nme29mtekjtvf3vcn0vsbd92md\"",
                "\"jc1cv69a1bejb4fna00vh2vmbb\"",
                "\"nerl3ba3sq6fsri6s2ef07ih6\"",
                "\"cisco-ci-domain-verification=11353b68900088e20a40badc25ab4f09eb3096f50544b14bcbe7bd444bf52595\"",
                "\"apple-domain-verification=ejgzqL39FqKVXGGH\"",
                "\"f8sqm95no7n8p9rnatgrb8q3q0\"",
                "\"3rg3mbi7qsn9ev1pthp91j4405\"",
                "\"vertexinc-cloud-a846b77c-a95a-4195-ae39-132058bf2d89\"",
                "\"facebook-domain-verification=ry6ekuhoqql5zbowtp2vsm02cpcker\"",
                "\"o9iisp5qktr6lbgbjuen7dcp4q\"",
                "\"AV6siBnUL8hEs4cYhMpoDmSOjc6BP/3BSSgryG/Inq3E8MbdMnh8sm8hA9NMowa9DuxCj6glwmY+ZcdRPnLNDA==\"",
                "\"hdtp9ogk7610h5sil2tsu0499d\"",
                "\"MS=ms48901080\"",
                "\"5c6khu6j17dn222bmgfsvmttc3\"",
                "\"Dynatrace-site-verification=1a13a8eb-fcb6-4e87-bf83-27e401695586__d30facs156bcmse6bfcmhe972r\"",
                "\"inspirus-llc-domain-verification-xv01pr=D6bKdjeR7T8G95dtp5bkrcxLP\"",
                "\"n9dkkdqokieocf2cj6qj6b764t\""
            ],
            "NS": [
                "ns-1155.awsdns-16.org.",
                "ns-1781.awsdns-30.co.uk.",
                "ns-263.awsdns-32.com.",
                "ns-950.awsdns-54.net."
            ],
            "SOA": [
                "ns-1155.awsdns-16.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400"
            ],
            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "52.191.90.193"
        ],
        "ipv6": []
    },
    "mail": {
        "spf": "v=spf1 include:spf.nsf.org include:_spf.google.com include:spf.protection.outlook.com include:cust-spf.exacttarget.com include:amazonses.com include:app.sgizmo.com -all",
        "dmarc": "v=DMARC1; p=reject; fo=1; rua=mailto:5ocfxkqi@ag.dmarcian.com; ruf=mailto:5ocfxkqi@fr.dmarcian.com",
        "dkim_selector": "selector1",
        "dkim_host": "selector1._domainkey.nsf.org",
        "dkim": "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDckhRuuzOXMCZt3WtnHhjqXyEhjdLDZp3Y84Q9FArnf65H5Id3+GcbB1xrJ/7NLAORdq1SwUD8GcSPc7wR9+gjfj1FMn625Gz5VhyCB07cdUTXh8Oc/XFolxFjrhaLYY+bpX5M4su4yD5rNKZs/V/JgNw17ecnpAhaR3SvNip14wIDAQAB; n=1024,1465631780,1481442980",
        "spf_analysis": {
            "valid": true,
            "lookups": 6,
            "final": "-all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "reject"
        },
        "bimi": "v=BIMI1;l=https://nsflogo.azureedge.net/nsflogo/nsf_international_558890039.svg;a=https://nsflogo.azureedge.net/nsflogo/nsf_international_558890039.pem",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "52.191.90.193"
                    ],
                    "time_ms": 73.95
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "52.191.90.193"
                    ],
                    "time_ms": 35
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "52.191.90.193"
                    ],
                    "time_ms": 52.89
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "52.191.90.193"
                    ],
                    "time_ms": 79.88
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "52.191.90.193"
                    ],
                    "time_ms": 338.08
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "Let's Encrypt",
        "subject": "nsf.org",
        "valid_from": "2026-06-28T07:29:35-05:00",
        "valid_to": "2026-09-26T07:29:34-05:00",
        "days_remaining": 47,
        "san": [
            "nsf.org"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_256_GCM_SHA384"
    },
    "http": {
        "url": "https://www.nsf.org/",
        "status": "HTTP/2 403 ",
        "http_version": "3",
        "headers": {
            "date": "Sun, 09 Aug 2026 16:36:39 GMT",
            "content-type": "text/html; charset=UTF-8",
            "content-length": "164",
            "location": "https://www.nsf.org",
            "cache-control": "private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0",
            "expires": "Thu, 01 Jan 1970 00:00:01 GMT",
            "referrer-policy": "same-origin",
            "x-frame-options": "SAMEORIGIN",
            "speculation-rules": "\"/cdn-cgi/speculation\"",
            "server": "cloudflare",
            "cf-ray": "a2882e52ce2b4a17-STL",
            "alt-svc": "h3=\":443\"; ma=86400"
        },
        "security_checks": {
            "strict-transport-security": false,
            "content-security-policy": false,
            "x-content-type-options": false,
            "x-frame-options": true,
            "referrer-policy": true,
            "permissions-policy": false,
            "cross-origin-opener-policy": false,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": false
        },
        "server": "cloudflare",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://www.nsf.org/",
        "title": "Attention Required! | Cloudflare",
        "description": "",
        "success": true,
        "error": "",
        "status": 403
    },
    "network": {
        "52.191.90.193": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "nsf-org.mail.protection.outlook.com",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 37.5,
                "banner": "",
                "error": "Network is unreachable"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 4021.2,
                "banner": "",
                "error": "Connection timed out"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 4042.4,
                "banner": "",
                "error": "Connection timed out"
            }
        ]
    },
    "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": 79.99
}