{
    "ok": true,
    "domain": "vk.ru",
    "generated_at": "2026-08-08T19:52:32-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 68,
        "label": "Fair",
        "categories": {
            "dns": 70,
            "mail": 90,
            "security": 65,
            "network": 35,
            "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": "6 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": "42 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": 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": 0,
                "lost_points": 40,
                "detail": "HTTP/2 418 "
            },
            {
                "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": "6 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": "42 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": "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": "error",
                "title": "HTTP response",
                "detail": "HTTP/2 418 ",
                "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": [
                "93.186.225.194",
                "87.240.129.133",
                "87.240.137.164",
                "87.240.132.72",
                "87.240.132.78",
                "87.240.132.67"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
                "0 mxs.mail.ru."
            ],
            "TXT": [
                "\"globalsign-domain-verification=_3ThBlSfDXSaCu1h3aUh80ttzR_bedzL3ypAACflKT\"",
                "\"yandex-verification: 8af2f673242c3f27\"",
                "\"_globalsign-domain-verification=vUqKW8TeZLChzvITahVA0BqwdJ9PVwau9k5oyr4Mqt\"",
                "\"HARICA-HXwqsWa4nbKd5iiw8F4\"",
                "\"_globalsign-domain-verification=DFivf3D5_sZ9tQSLTxKQeoyNui0nTeXHmnVdby5BXI\"",
                "\"facebook-domain-verification=qpsvpgrhcj495s1tpuqqko2h0dml53\"",
                "\"HARICA-p7yBMQMfWW7CWHihxli\"",
                "\"_globalsign-domain-verification=eiwEpYw8ulhUpki3XltF3yAKIrsuBlHKpWWPYv7PIM\"",
                "\"HARICA-i0kQ0VdLYyLsOMduORq\"",
                "\"google-site-verification=8P-25RIremiet637l6gNrtEMbDM5390-Gu_9BG2v7ac\"",
                "\"LD6VaYCKete4UB5FIx7snCoJ8bt1nGdeCWe4my5HH5psRaTl\" \"zAmvc\"",
                "\"_globalsign-domain-verification=Ko9RA0GoEJee9b-c_UGqzy_bN8DapqVH_UKiEKmxYx\"",
                "\"_globalsign-domain-verification=dn1ZJljDCM8NbMJeVhWlDGjA5t0oiFcNJqQHCpEDRt\"",
                "\"CryptoPrO dhtgs1wdqw y7JHGNRFGHu [VKCT] ghjdthrf\" \" VK.RU\"",
                "\"_globalsign-domain-verification=8-JYAhPi0NDgHvVA0dw9LQHJ_Vrjwv0U45G4r8jYgR\"",
                "\"v=spf1 ip4:93.186.224.0/20 ip4:87.240.128.0/18 i\" \"p4:95.142.192.0/21 mx include:_spf.google.com in\" \"clude:_spf.mail.ru ~all\"",
                "\"HARICA-DWz7LUVS6qzBJOviSRN\"",
                "\"_globalsign-domain-verification=_3ThBlSfDXSaCu1h3aUh80ttzR_bedzL3ypAACflKT\"",
                "\"wmail-verification: 646ff42e916a2be1aa86be6d3c742949\""
            ],
            "NS": [
                "ns1.vk.ru.",
                "ns2.vk.ru.",
                "ns3.vk.ru.",
                "ns4.vk.ru."
            ],
            "SOA": [
                "ns1.vkontakte.ru. ncc.vk.com. 3577210639 900 600 604800 900"
            ],
            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "93.186.225.194",
            "87.240.129.133",
            "87.240.137.164",
            "87.240.132.72",
            "87.240.132.78",
            "87.240.132.67"
        ],
        "ipv6": []
    },
    "mail": {
        "spf": "v=spf1 ip4:93.186.224.0/20 ip4:87.240.128.0/18 ip4:95.142.192.0/21 mx include:_spf.google.com include:_spf.mail.ru ~all",
        "dmarc": "v=DMARC1; p=reject; sp=reject; pct=100; rua=mailto:d@rua.agari.com,mailto:dmarc@vk.com",
        "dkim_selector": "mail",
        "dkim_host": "mail._domainkey.vk.ru",
        "dkim": "v=DKIM1; g=*; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDo7IuTeBmeA1TiUC5T3F0JPVdnbeRkAjNa3qrLeRz5ase02CHibtUFLE35LDNDPd/XjUSkI6BY8lIVvJZ0luTqE31oKNza725Dec2Haa3LXvXZJ62LfegEmfovh680Id1SUdn+vM2rWRBHM/j0MEI5jD1iXzFg83BEK5TMkbMCbwIDAQAB",
        "spf_analysis": {
            "valid": true,
            "lookups": 3,
            "final": "~all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "reject"
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "87.240.129.133",
                        "87.240.132.67",
                        "87.240.132.72",
                        "87.240.132.78",
                        "87.240.137.164",
                        "93.186.225.194"
                    ],
                    "time_ms": 42.32
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "87.240.129.133",
                        "87.240.132.67",
                        "87.240.132.72",
                        "87.240.132.78",
                        "87.240.137.164",
                        "93.186.225.194"
                    ],
                    "time_ms": 20.71
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "87.240.129.133",
                        "87.240.132.67",
                        "87.240.132.72",
                        "87.240.132.78",
                        "87.240.137.164",
                        "93.186.225.194"
                    ],
                    "time_ms": 32.01
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "87.240.129.133",
                        "87.240.132.67",
                        "87.240.132.72",
                        "87.240.132.78",
                        "87.240.137.164",
                        "93.186.225.194"
                    ],
                    "time_ms": 173.08
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "87.240.129.133",
                        "87.240.132.67",
                        "87.240.132.72",
                        "87.240.132.78",
                        "87.240.137.164",
                        "93.186.225.194"
                    ],
                    "time_ms": 66.78
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "Let's Encrypt",
        "subject": "vk.ru",
        "valid_from": "2026-06-22T06:34:09-05:00",
        "valid_to": "2026-09-20T06:34:08-05:00",
        "days_remaining": 42,
        "san": [
            "vk.ru"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_256_GCM_SHA384"
    },
    "http": {
        "url": "https://vk.ru/",
        "status": "HTTP/2 418 ",
        "http_version": "3",
        "headers": {
            "server": "kittenx",
            "date": "Sun, 09 Aug 2026 00:52:29 GMT",
            "content-length": "0",
            "x-frontend": "front923400",
            "access-control-expose-headers": "X-Frontend",
            "x-trace-id": "RHOfU0y52dN9L7yaQQ5ZjR3gecPUUA",
            "server-timing": "tid;desc=\"RHOfU0y52dN9L7yaQQ5ZjR3gecPUUA\",front;dur=0.047"
        },
        "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": "kittenx",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://m.vk.ru/",
        "title": "VK.com | VK",
        "description": "",
        "success": true,
        "error": "",
        "status": 200
    },
    "network": {
        "93.186.225.194": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "87.240.129.133": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "87.240.137.164": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "87.240.132.72": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "mxs.mail.ru",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 134.1,
                "banner": "",
                "error": "Connection refused"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 464.9,
                "banner": "",
                "error": "Connection refused"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 355.8,
                "banner": "",
                "error": "Connection refused"
            }
        ]
    },
    "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": 92.61
}