{
    "ok": true,
    "domain": "kharkov.ua",
    "generated_at": "2026-08-09T07:14:11-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 76,
        "label": "Good",
        "categories": {
            "dns": 95,
            "mail": 75,
            "security": 65,
            "network": 85,
            "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": 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": "7 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": 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": "2 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": 0,
                "lost_points": 20,
                "detail": "No tested DKIM selector responded."
            },
            {
                "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": 5,
                "lost_points": 0,
                "detail": "TLS reporting policy."
            },
            {
                "category": "security",
                "title": "Valid TLS certificate",
                "max_points": 55,
                "earned_points": 55,
                "lost_points": 0,
                "detail": "81 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: www.he.eastua.net"
            },
            {
                "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": 0,
                "lost_points": 40,
                "detail": "No successful HTTP response."
            },
            {
                "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": "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": "7 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": "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": "2 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": "error",
                "title": "DKIM",
                "detail": "No tested DKIM selector responded.",
                "category": "mail",
                "max_points": 20,
                "earned_points": 0,
                "lost_points": 20
            },
            {
                "level": "error",
                "title": "MTA-STS",
                "detail": "Mail transport policy.",
                "category": "mail",
                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5
            },
            {
                "level": "ok",
                "title": "TLS-RPT",
                "detail": "TLS reporting policy.",
                "category": "mail",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "Valid TLS certificate",
                "detail": "81 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: www.he.eastua.net",
                "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": "error",
                "title": "HTTP response",
                "detail": "No successful HTTP response.",
                "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": [
                "195.69.185.211"
            ],
            "AAAA": [
                "2a06:6200:0:201::211"
            ],
            "CNAME": [],
            "MX": [
                "10 relay.kharkov.ua.",
                "0 kharkov.coordinator.ua."
            ],
            "TXT": [
                "\"Build on: BUILD_TIME\"",
                "\"Build on: 2026-08-09 07:17:12 +0300\"",
                "\"URL: http://coordinator.ua\"",
                "\"kharkov.ua 2026080823 1078\"",
                "\"v=spf1 +a +mx include:_spf.coordinator.ua -all\"",
                "\"WHOIS: http://whois.kharkov.ua\""
            ],
            "NS": [
                "ns.sm.ua.",
                "ns.net.ua.",
                "nn.ns.ua.",
                "ns.zp.ua.",
                "ns.kh.ua.",
                "ns.dn.ua.",
                "ho1.eunic.net.ua."
            ],
            "SOA": [
                "ho1.eunic.net.ua. info.eunic.net.ua. 2608090717 3600 1800 1814400 1800"
            ],
            "CAA": [],
            "DS": [
                "51727 13 2 8B910EEB2D457A7F4B2FD29607E494FBD56F2AABC044C9C6520A08CD AC3EFFE4"
            ],
            "DNSKEY": [
                "257 3 13 PqTfDtDEIcjiMUFhOaOcsfmmsKPLWApeX2zUzUf+5ulGesqV5YlUrQQl 1cuLntL7prJo6P82iusKzGhvPDwLrg==",
                "256 3 13 RH1zjYB1+6414Y36H6VSTIEqODFc9Sx+Z6HBYJeJYcDKG3RTcZNniT1M jNLcyNibt7Kae4ihdC+BK3bCueuj4w=="
            ],
            "RRSIG": [
                "AAAA 13 2 28800 20260923031712 20260809031712 3825 kharkov.ua. jmOrVB/EG7ac0cwEdre2QrTtNBPrJszuTp2O8383bxQx2YBP6mQQBXKf nXwlZGFnJ1XoUaXqErNV2wR3p8rXKg==",
                "TXT 13 2 28800 20260923031712 20260809031712 3825 kharkov.ua. AHnTj0TRS43Rpe5EemklMem3DvMBrnRAvj7i98fs3e+1dXSD0HME6R8X a0mE4YNzt6U1i1MhuOzDn/uqthQU4g==",
                "MX 13 2 28800 20260923031712 20260809031712 3825 kharkov.ua. q9iQerrKb7So6ieYFCOGb8mdCb8ZTZ0hxCahHZYHmk7B8YOJW0pkMSLG O3Dn/HScK2EwhJ/CFNcZXD1RzrSlcQ==",
                "A 13 2 28800 20260923031712 20260809031712 3825 kharkov.ua. m6hZx0QBq3TrEL5ihlnZwlQPEqJ1jh1WNUBkYaGcvKfF3p3z7W8hZ3fn 2xQ5nCuNDCTl0EhQPTwhPS2G41u4lg==",
                "NS 13 2 28800 20260923031712 20260809031712 3825 kharkov.ua. xzlQjdQiDzkSrLpDkZvQpmmhpPOCknovsAzdXExnaKKO/ueLb+GDGfEL /m/4aBlyJNw7nfRmpfdboro0bgNREw==",
                "SOA 13 2 28800 20260923031712 20260809031712 3825 kharkov.ua. SGDYwrn3swKJF+FpHyYmdaN/tSa6FfMIsmOvsjQuLMERYLw7W3haJt0Y umIEjhIT7IRku6+3zfD64hO1EE3dtg==",
                "DNSKEY 13 2 28800 20260923031712 20260809031712 3825 kharkov.ua. CJqJ6MqpsWEFqaSr9gPgPyWiazRhKyBnWkwuyDxpH+NGEQZmyjDaJb2t 9sw40cw2z0l/noa8Ykjr+q1G9/QnUQ==",
                "DNSKEY 13 2 28800 20260923031712 20260809031712 51727 kharkov.ua. LECAKXzUUV9BKyOt+IPlCn2iLqm/nbgaf+BoW6qS4AUopPYztr1UVcHG Y+Mn3xpYdJHpJ6a39NavYe9qIhjvfA==",
                "DS 13 2 10801 20260824181928 20260720164928 32091 ua. yZG3Ehkgs29BGLupLkrt1Mle3w8fBopHXMaKNh8hbaex5qbCbf9Wbz3A O0g6A7fv/x8+/K+dqI0qZ2ww8o0a+g==",
                "NSEC3PARAM 13 2 0 20260923031712 20260809031712 3825 kharkov.ua. nOmaH+qIPdo/7PSVTVGUfosG7wLAr5TokRyMzEa3Cffvjx9MUN5lpcVV MGhnet1sA7VeWvHdzKSl+6uAeB8Wyw=="
            ],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "195.69.185.211"
        ],
        "ipv6": [
            "2a06:6200:0:201::211"
        ]
    },
    "mail": {
        "spf": "v=spf1 +a +mx include:_spf.coordinator.ua -all",
        "dmarc": "v=DMARC1; p=quarantine; sp=none; adkim=s; aspf=s; ruf=mailto:dmarc-reports@kharkov.ua",
        "dkim_selector": "x",
        "dkim_host": "",
        "dkim": "",
        "spf_analysis": {
            "valid": true,
            "lookups": 3,
            "final": "-all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "quarantine"
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": "v=TLSRPTv1; rua=mailto:tls-reports@coordinator.ua"
    },
    "advanced": {
        "ptr": "www.he.eastua.net",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "195.69.185.211"
                    ],
                    "time_ms": 190.1
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "195.69.185.211"
                    ],
                    "time_ms": 47.46
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "195.69.185.211"
                    ],
                    "time_ms": 435.18
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "195.69.185.211"
                    ],
                    "time_ms": 123.1
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "195.69.185.211"
                    ],
                    "time_ms": 162.72
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "Let's Encrypt",
        "subject": "hypermail.hostmaster.ua",
        "valid_from": "2026-07-31T20:07:52-05:00",
        "valid_to": "2026-10-29T20:07:51-05:00",
        "days_remaining": 81,
        "san": [
            "hypermail.hostmaster.ua",
            "www.kh.eunic.net.ua",
            "www.kh.ua",
            "www.kharkov.ua"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_256_GCM_SHA384"
    },
    "http": {
        "url": "https://kharkov.ua/",
        "status": "",
        "http_version": "0",
        "headers": [],
        "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": "",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://kharkov.ua/",
        "title": "",
        "description": "",
        "success": false,
        "error": "SSL: no alternative certificate subject name matches target host name 'kharkov.ua'"
    },
    "network": {
        "195.69.185.211": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "relay.kharkov.ua",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 133.4,
                "banner": "",
                "error": "Network is unreachable"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 279.1,
                "banner": "",
                "error": "No connection"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 4019.2,
                "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": 96.8
}