{
    "ok": true,
    "domain": "uni-sofia.bg",
    "generated_at": "2026-08-11T15:02:58-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 91,
        "label": "Excellent",
        "categories": {
            "dns": 100,
            "mail": 90,
            "security": 77,
            "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": 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": "105 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": 12,
                "lost_points": 23,
                "detail": "3 of 9 evaluated headers detected."
            },
            {
                "category": "network",
                "title": "PTR reverse DNS",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0,
                "detail": "PTR: uni-sofia.bg"
            },
            {
                "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."
            },
            {
                "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": [
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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",
                "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": "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": "105 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": "3 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 12,
                "lost_points": 23
            },
            {
                "level": "ok",
                "title": "PTR reverse DNS",
                "detail": "PTR: uni-sofia.bg",
                "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.",
                "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": "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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            ],
            "AAAA": [
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            "CNAME": [],
            "MX": [
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            "TXT": [
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            "NS": [
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                "ns1.uni-sofia.bg.",
                "ns.digsys.bg."
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            "SOA": [
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            ],
            "CAA": [
                "0 issue \"digicert.com\"",
                "0 issuewild \"comodoca.com\"",
                "0 issuewild \"sectigo.com\"",
                "0 issue \"letsencrypt.org\"",
                "0 issue \"sectigo.com\""
            ],
            "DS": [
                "12955 13 2 5529C1F33060DD213DE3DD226FDC6EBEFD929C3042949F71E272A5A6 7CD26789"
            ],
            "DNSKEY": [
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                "256 3 13 LKVq6DIHJ6111Yu/WY3Hyt+Ra8NAIStZ2DW6+vlVaQMiElsD0A8RuBrT 1TbFxBzhKGMvhbNBb6cLAI5dxk1Mvg=="
            ],
            "RRSIG": [
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                "MX 13 2 86400 20260820221923 20260806221123 7518 uni-sofia.bg. cC6LIABEx5SRkYnr1qMfozDIHmS4QuQgFdfGIQhKJvOhGWdXKF0r0lQA ad+YvmDzoIYE8h7XNE0YHBW7zcINsA==",
                "AAAA 13 2 86400 20260820221923 20260806221123 7518 uni-sofia.bg. 08Ce/u4ojdpxEfOoyw/9JBq4RTvhtOXa1W4fEoJkfK99hb+cuSPGB0rj 38uBGD7yjepXkD1Rm4oTucZf33FZ2A==",
                "DNSKEY 13 2 86400 20260825060906 20260811060330 12955 uni-sofia.bg. CXJDzCFG/gJMCnEhlQOur/pW/hDY0A2OFafCTCzGh/YwaREEnl1Pkww0 XaYeePH1lQFKeghQ4SOhLA8cff2jrA==",
                "A 13 2 86400 20260820221923 20260806221123 7518 uni-sofia.bg. eZrLJN+9Yv7roYHkBroivScZ3kZgnxKAaYB0dqhEu7SuXD4dpBt0CCbM Y9LjRFlz8X0eXFHntw8/Hnna4yzmsQ==",
                "DS 8 2 86400 20260910170010 20260811170010 7074 bg. RgBLfXp2Z0TDfy0eGNHJ3+CXU7LRoHUSBZ3hqn1rzf065dIgvWmVHUxf MLyU8bhYoYVvuafRv8ly98Nbn55jVjPaVxhkIs+slWyjPf4AziH4fb3/ egPThIgVJcr8BAAQ7LVowfXL2kVIJYYgVWxeF10jmyN99K3VAz0r/HRO E+iRnr4x0d7/gjOSIF6h0Q5WR8FsH9gel1bAJticfh/3i4I2bFrJDoRn AHoNfQbkn+JgTIeXOtknQb1aJQlh/21XsyFdOGsMXb0z6IaOn1dbfDMI Rlg04/xooTF1bZ3jX6GsEy937+q4c6QbK87cYyFbZlUh5X+CRSVZWLKT TMlrYA==",
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                "CAA 13 2 86400 20260824113126 20260810103934 7518 uni-sofia.bg. HZC+Ld5zpcvTfA5M3hq8K5iZH5y0rFafVdVxQwIStdInu/4/zO6eo6i+ nr4PmNx/ZxV0eJo8sITBwaD3vq6Xug=="
            ],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "62.44.96.51"
        ],
        "ipv6": [
            "2001:67c:20d0::51"
        ]
    },
    "mail": {
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        "dkim_host": "default._domainkey.uni-sofia.bg",
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            "valid": true,
            "lookups": 0,
            "final": "-all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "quarantine"
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
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    "advanced": {
        "ptr": "uni-sofia.bg",
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            "consistent": true,
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                    "provider": "Google",
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                    "time_ms": 192.18
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                    "time_ms": 170.03
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                    "provider": "Quad9",
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                    "result": [
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                    "time_ms": 50.24
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                {
                    "provider": "OpenDNS",
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                    "result": [
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                    "time_ms": 178.09
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                {
                    "provider": "AdGuard",
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                    "time_ms": 174.73
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            ]
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    "ssl": {
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        "issuer": "Sectigo Limited",
        "subject": "*.uni-sofia.bg",
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        "valid_to": "2026-11-24T17:59:59-06:00",
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        ],
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        "cipher": "TLS_AES_256_GCM_SHA384"
    },
    "http": {
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        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
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            "x-content-type-options": "nosniff",
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            "served-by": "portal.uni-sofia.bg",
            "content-language": "bg-BG",
            "vary": "Accept-Encoding,User-Agent",
            "content-type": "text/html; charset=utf-8",
            "set-cookie": "eZSESSID=luhi9e3ltm5vfu4o38g9ilho47; path=/"
        },
        "security_checks": {
            "strict-transport-security": true,
            "content-security-policy": false,
            "x-content-type-options": true,
            "x-frame-options": true,
            "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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    },
    "webpage": {
        "url": "https://uni-sofia.bg/",
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        "description": "Софийски Университет Св. Климент Охридски",
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        "error": "",
        "status": 206
    },
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            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
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        "ports": [
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                "open": false,
                "time_ms": 1.5,
                "banner": "",
                "error": "Network is unreachable"
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                "open": false,
                "time_ms": 286.1,
                "banner": "",
                "error": "No connection"
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                "open": false,
                "time_ms": 138.8,
                "banner": "220 zimbra.uni-sofia.bg ESMTP Postfix",
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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
    },
    "analysis_time_ms": 77.39
}