{
    "ok": true,
    "domain": "smu.edu.sg",
    "generated_at": "2026-08-10T07:06:56-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 77,
        "label": "Good",
        "categories": {
            "dns": 70,
            "mail": 90,
            "security": 69,
            "network": 35,
            "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": "2 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": "101 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": 4,
                "lost_points": 31,
                "detail": "1 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": 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": 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": "2 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": "101 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": "1 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 4,
                "lost_points": 31
            },
            {
                "level": "error",
                "title": "PTR reverse DNS",
                "detail": "PTR not detected.",
                "category": "network",
                "max_points": 30,
                "earned_points": 0,
                "lost_points": 30
            },
            {
                "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": "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": {
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                "45.64.64.148",
                "103.28.249.14"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
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                "\"openatts a=dns-did; p=did:ethr:0x9f332a8bf5732ce0426df2798d9e096a0dec7720#controller; v=1.0;\"",
                "\"webexdomainverification.=9d239fd9-1d8a-45a7-b4f2-92b0970ef70a\"",
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                "\"globalsign-domain-verification=b40e51bded34408f89fda1cf33593aca\"",
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                "\"openatts a=dns-did; p=did:ethr:0x3670e0c19fcba5bf3a1f8112d1a2b7b65eb8fa61#controller; v=1.0;\"",
                "\"zoho-verification=zb96404674.zmverify.zoho.com\"",
                "\"openatts a=dns-did; p=did:ethr:0x2df241739da39abad6e9d1079bdf6731fcb11961#controller; v=1.0;\"",
                "\"onetrust-domain-verification=daa469b855f94d53bc947aac076f8373\"",
                "\"openatts a=dns-did; p=did:ethr:0x89c1f3e15c8fc54d312c7a40e5dc38df767ce723#controller; v=1.0;\"",
                "\"google-site-verification=FwJCv8T5DDC0H33SkGNUrhWsfAiRa_eFDXT_kbnI41s\"",
                "\"openatts a=dns-did; p=did:ethr:0xc6f3623b07eb1e1fa99d92edebaa7a9553976e28#controller; v=1.0;\"",
                "\"openatts a=dns-did; p=did:ethr:0xace66a41a60ce4190222be54806d6fc2096a9023#controller; v=1.0;\"",
                "\"openatts a=dns-did; p=did:ethr:0x985da8e1aaec4d6acca8fd5a946d7569417545da#controller; v=1.0;\"",
                "\"openatts a=dns-did; p=did:ethr:0xf4672773f058f1b50262a2e65e55e983987b9009#controller; v=1.0;\"",
                "\"onetrust-domain-verification=be95f1756d284d84bf0f85479631baa4\"",
                "\"abuseipdb-verification=mPZtuCzf\"",
                "\"brevo-code:b1414e0a234265a2faa294058248ae06\"",
                "\"openatts a=dns-did; p=did:ethr:0x1c653f670aa2fbe3f5c5b2f3d319329686f24038#controller; v=1.0;\"",
                "\"openatts a=dns-did; p=did:ethr:0x07761069be3ef775fbc46b6beec08c775b450f7d#controller; v=1.0;\"",
                "\"_globalsign-domain-verification=cC16G8OgqYZ5SiPxst0o8UVc2-U41BGYWkZtMYwnib\"",
                "\"v=spf1 ip4:202.161.41.192/26 ip4:202.161.50.111 ip4:202.161.50.112 ip4:202.161.50.113 ip4:198.207.147.224/27 ip4:204.239.0.224/27 ip4:216.230.14.224/27 ip4:13.210.253.246 ip4:52.62.198.211 ip4:52.189.236.102 ip4:139.60.152.0/22 ip4:64.69.212.0/24 ip4:98.9\" \"7.248.0/21 ip4:64.94.116.21 ip4:103.151.192.0/23 ip4:185.12.80.0/22 ip4:188.172.128.0/20 ip4:192.161.144.0/20 ip4:216.198.0.0/18 include:spf.protection.outlook.com include:_spfb.smu.edu.sg ~all\"",
                "\"google-site-verification=O0fRpQOozsguxM1z1RHZxHjyRMGyIJM47X0tk8kReQ4\""
            ],
            "NS": [
                "ns2.smu.edu.sg.",
                "evsddns02.smu.edu.sg.",
                "secdns2.starhub.net.sg."
            ],
            "SOA": [
                "evsddns02.smu.edu.sg. administrator.smu.edu.sg. 674134113 3600 600 86400 1800"
            ],
            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "45.64.64.148",
            "103.28.249.14"
        ],
        "ipv6": []
    },
    "mail": {
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        "dkim_selector": "selector1",
        "dkim_host": "selector1._domainkey.smu.edu.sg",
        "dkim": "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmSxS3kmLjY5iVU4px4C2zpoosU5lA+XmpzTEsI0yGSASL1k63SqeIQIXsn9LMGOiq1nt+ZJkj6jeQ11vbEbNzVBrxJ8tpGIfVAOb037d+O+4Ep5XDMfMotymcWetvsF3kEkGCQIxgm1pSS+2GTPhMQ/ZtxKNVnhnxqob9sbG1fbO9EBbC3qKZ1kHT78zUqDKSq1LFOCnRHqh1n3h45sStb3tnOnA3iZhpgSPGhLToFfLRdcxw3ArzJjUHUjr0mep8/HQw88p1SgyGaAJcj1GIAiebADFHp8ZQnquyv4GS5bKCrD8Qxy/Db2tNR/5QLP9zN40tmTDYjJxfagTLOvUZQIDAQAB;",
        "spf_analysis": {
            "valid": true,
            "lookups": 2,
            "final": "~all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "quarantine"
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "",
        "propagation": {
            "consistent": true,
            "results": [
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                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
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                        "45.64.64.148"
                    ],
                    "time_ms": 62.9
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
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                        "45.64.64.148"
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                    "time_ms": 79.47
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
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                        "45.64.64.148"
                    ],
                    "time_ms": 270.37
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
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                        "45.64.64.148"
                    ],
                    "time_ms": 760.14
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                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
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                        "45.64.64.148"
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                    "time_ms": 565.98
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "GlobalSign nv-sa",
        "subject": "*.smu.edu.sg",
        "valid_from": "2026-05-05T00:21:23-05:00",
        "valid_to": "2026-11-19T23:21:23-06:00",
        "days_remaining": 101,
        "san": [
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            "smu.edu.sg"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_128_GCM_SHA256"
    },
    "http": {
        "url": "https://smu.edu.sg/",
        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
            "content-type": "text/html",
            "cache-control": "no-cache, no-store",
            "content-length": "212",
            "x-iinfo": "52-309041443-0 0NNN RT(1786363607066 232) q(0 -1 -1 0) r(0 -1) B10(4,289,0) U6",
            "strict-transport-security": "max-age=31536000",
            "set-cookie": "incap_ses_443_823419=jTi/f0cM9w48xJ/jQNolBta+eWoAAAAAoZZMJUmmY45O518yXrWmQg==; path=/; Domain=.smu.edu.sg; Secure; SameSite=None"
        },
        "security_checks": {
            "strict-transport-security": true,
            "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": "",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://smu.edu.sg/",
        "title": "",
        "description": "",
        "success": true,
        "error": "",
        "status": 200
    },
    "network": {
        "45.64.64.148": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "103.28.249.14": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "smu-edu-sg.mail.protection.outlook.com",
        "ports": [
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                "port": 25,
                "open": false,
                "time_ms": 24.5,
                "banner": "",
                "error": "Network is unreachable"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 4015.4,
                "banner": "",
                "error": "Connection timed out"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 4005.4,
                "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": 88.1
}