{
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    "domain": "cuni.cz",
    "generated_at": "2026-08-09T00:53:50-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 88,
        "label": "Good",
        "categories": {
            "dns": 100,
            "mail": 90,
            "security": 65,
            "network": 85,
            "availability": 100
        },
        "category_weights": {
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            "mail": 20,
            "security": 25,
            "network": 10,
            "availability": 20
        },
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                "category": "dns",
                "title": "IPv4 (A)",
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                "earned_points": 30,
                "lost_points": 0,
                "detail": "1 IPv4 address(es) detected."
            },
            {
                "category": "dns",
                "title": "IPv6 (AAAA)",
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                "earned_points": 10,
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            {
                "category": "dns",
                "title": "Name server redundancy",
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                "lost_points": 0,
                "detail": "4 NS record(s); 2 or more required."
            },
            {
                "category": "dns",
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                "category": "dns",
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            {
                "category": "dns",
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            {
                "category": "dns",
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            },
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                "category": "mail",
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                "detail": "2 MX record(s)."
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            {
                "category": "mail",
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                "category": "mail",
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                "detail": "DMARC policy published."
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                "category": "mail",
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                "detail": "A DKIM selector was verified."
            },
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                "category": "mail",
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            {
                "category": "mail",
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                "lost_points": 5,
                "detail": "TLS reporting policy."
            },
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                "category": "security",
                "title": "Valid TLS certificate",
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                "category": "security",
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                "detail": "1 of 9 evaluated headers detected."
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                "category": "network",
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                "earned_points": 30,
                "lost_points": 0,
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            },
            {
                "category": "network",
                "title": "IPv4 diversity",
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                "earned_points": 20,
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                "detail": "Two or more IPv4 addresses receive full points."
            },
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                "category": "availability",
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                "level": "ok",
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                "level": "ok",
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                "level": "ok",
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                "level": "ok",
                "title": "SPF",
                "detail": "SPF policy published.",
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            {
                "level": "ok",
                "title": "DMARC",
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                "level": "ok",
                "title": "DKIM",
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            },
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                "level": "error",
                "title": "MTA-STS",
                "detail": "Mail transport policy.",
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                "lost_points": 5
            },
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                "level": "error",
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            {
                "level": "ok",
                "title": "Valid TLS certificate",
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                "level": "warning",
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            {
                "level": "warning",
                "title": "HTTP security headers",
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                "max_points": 35,
                "earned_points": 4,
                "lost_points": 31
            },
            {
                "level": "ok",
                "title": "PTR reverse DNS",
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                "category": "network",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0
            },
            {
                "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": "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",
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                "max_points": 40,
                "earned_points": 40,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "HTTP response",
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                "max_points": 40,
                "earned_points": 40,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "HTTPS final URL",
                "detail": "Final URL uses HTTPS.",
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                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            }
        ]
    },
    "dns": {
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            "AAAA": [
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                "\"google-site-verification=LazYVCEv9A_edcp-AQV8RBrOcYmEyvoC1t68iOp7tSI\"",
                "\"apple-domain-verification=S8ZUNOXpX2OWxGom\"",
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            "NS": [
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            "SOA": [
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            "CAA": [
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                "0 issue \"letsencrypt.org\"",
                "0 issue \"digicert.com\"",
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                "MX 13 2 3600 20260820122711 20260806112935 43474 cuni.cz. aPwUUhKEIf0F/gENkQjzlvc88FT/19KIccvP5euj+nxqGlg4xa/ivpbN E16pRKXxemPMfyZ/6YnLZFYfkojVWg==",
                "AAAA 13 2 3600 20260818172556 20260804171558 43474 cuni.cz. puVY/56RcQFjeu8x58TIw6K1zh4qCpG2WHz0YIk8rdlW2Usi8iSSrbk/ jzFWCHXzPrGZ+Sug9wIcEiwT8KVyOw==",
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                "CAA 13 2 7200 20260819025011 20260805024307 43474 cuni.cz. kDxze+fn2cQazMFP9F935d3rOX6leTkG6JS2G2ia8q9zGQ4/ko0L5B4D JaRytF1opqAYgfmpDqInnv4H1DF+jg=="
            ],
            "NSEC": [
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            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
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        ],
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        "dkim_host": "selector1._domainkey.cuni.cz",
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        "spf_analysis": {
            "valid": true,
            "lookups": 7,
            "final": "-all",
            "message": "Within the estimated limit"
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        "dmarc_analysis": {
            "valid": true,
            "policy": "quarantine"
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        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
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        "ptr": "54.0/25.89.113.195.in-addr.arpa",
        "propagation": {
            "consistent": true,
            "results": [
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                    "provider": "Google",
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                    "time_ms": 41.07
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                    "provider": "AdGuard",
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        "issuer": "Hellenic Academic and Research Institutions CA",
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        "valid_from": "2025-08-25T06:05:25-05:00",
        "valid_to": "2026-08-25T06:05:25-05:00",
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        "cipher": "TLS_AES_256_GCM_SHA384"
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        "status": "HTTP/2 200 ",
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        "headers": {
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            "date": "Sun, 09 Aug 2026 05:53:48 GMT",
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            "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
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        "server": "nginx",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://cuni.cz/",
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        "description": "",
        "success": true,
        "error": "",
        "status": 200
    },
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            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
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                "time_ms": 122.7,
                "banner": "",
                "error": "Network is unreachable"
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                "port": 465,
                "open": false,
                "time_ms": 250.1,
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                "open": false,
                "time_ms": 131.7,
                "banner": "",
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        ]
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    "visitor": {
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        "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
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    "analysis_time_ms": 88.49
}