{
    "ok": true,
    "domain": "tutu.ru",
    "generated_at": "2026-08-12T05:56:12-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 78,
        "label": "Good",
        "categories": {
            "dns": 70,
            "mail": 90,
            "security": 81,
            "network": 20,
            "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": 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": "8 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": "3 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": "68 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": 16,
                "lost_points": 19,
                "detail": "4 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": 20,
                "lost_points": 15,
                "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": "1 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": "8 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": "3 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": "68 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": "4 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 16,
                "lost_points": 19
            },
            {
                "level": "error",
                "title": "PTR reverse DNS",
                "detail": "PTR not detected.",
                "category": "network",
                "max_points": 30,
                "earned_points": 0,
                "lost_points": 30
            },
            {
                "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": "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": {
            "A": [
                "178.248.234.61"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
                "10 mx-700.tutu.ru.",
                "10 mx-500.tutu.ru.",
                "10 mx-600.tutu.ru."
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                "\"mailru-verification: 3f697b954f7474f2\"",
                "\"google-site-verification=2Akw-I3GQZ2ryCz0NCI4o1JyXOi5sHQlPN4JxJB-J00\"",
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                "\"globalsign-domain-verification=VZ3EieH_fxfDxc-mU7Q47eNn7oeyZbzfnyeyWADK6R\"",
                "\"globalsign-domain-verification=3C689pOxOG6ieXBPkLhDkybMa76DDEflWHVkSxdP_Z\"",
                "\"_globalsign-domain-verification=mFwnhqhtAuWkxKnYE2lKLJUxfBA4v8p-CqE8tHHofF\"",
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                "\"globalsign-domain-verification=ywjYLATHqxSMoLqvKrGsglrcVpTVskSkFWT_eky38v\"",
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                "\"yandex-verification: 6ee609a3885f188e\"",
                "\"_globalsign-domain-verification=G3fMRvpQj9LgXWfnz8wq8cA1jMGapeemPm3PDQHePq\"",
                "\"google-site-verification=Cz8Bzr7-ESWKU8cUxNnVLJZqYvNMZn4jjyLzpR8Disk\"",
                "\"_globalsign-domain-verification=WtaxFaW29N5povVvJCOLPhleLbbzvArIVJAaLUcO9j\"",
                "\"google-site-verification=wKZRMqNPhDd5CGzjlxhO5lmz8NVHuDthlUG7UK62Zl8\"",
                "\"google-site-verification=g_y1CxLQaEzlcV7OPVDkKHoeAXL9sCmmaMQ6TrZnP8g\"",
                "\"_globalsign-domain-verification=fzjGOKd_F1CWJ38Cd44imZHXoZSgG3JiK2xh79Kg46\"",
                "\"google-site-verification=n6rL9k1IuVFv8tQuldMORO8sbR2Jd60mOlh9azFzQfM\"",
                "\"mailru-verification: 340c1a4e8878dade\"",
                "\"google-site-verification=upQwJHFMQ-_EVlYq7_R9qbwpvoFA1bRXHmKYomtCaWQ7\"",
                "\"cursor-domain-verification-wpzah2=N7uz00hlHVe6Jan2ZjOGGIGdJ\"",
                "\"google-site-verification=HANcknsYncFgiZrWCiA2O0KfC7oosP-gj444JgyOE6U\"",
                "\"MS=39077999CD7233E83CB9CD42B79C1A1F422CE85B\"",
                "\"globalsign-domain-verification=c-cqjCHfZ9_lMKZZvL14wr0QREkFxA0kqRH1Apdvpn\"",
                "\"_globalsign-domain-verification=f6vbnQxOTgbQANFHfEEagfQn49PzemFol4GfzJ_8mo\"",
                "\"mailru-verification: f64cc5123ec44d93\"",
                "\"_globalsign-domain-verification=cAT4qtUfH-UaZc7w4UXGPm42TT8U4pYrRkJt1pK-g5\"",
                "\"mailru-verification: ee7fcc994f145831\"",
                "\"yandex-verification: 3045fec07a5d77a6\"",
                "\"yahoo-verification-key=xbXYTA5lBKfK6PiLBicdKfHmdLBLIYKkGWXZAnISlH4=\"",
                "\"mailru-verification: 13ecfdd5d64e477d\"",
                "\"globalsign-domain-verification=hOkLGf7LXuL5eYE8wjPi1my2AIZJMA0tI11H4Tj5sB\""
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            "NS": [
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                "dns6.cloudns.net.",
                "dns2.cloudns.net.",
                "ns8-l2.nic.ru.",
                "ns4-l2.nic.ru.",
                "dns5.cloudns.net.",
                "dns1.cloudns.net.",
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            "SOA": [
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            ],
            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
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        "ipv6": []
    },
    "mail": {
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        "dkim_selector": "mail",
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        "spf_analysis": {
            "valid": true,
            "lookups": 1,
            "final": "",
            "message": "Within the estimated limit"
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            "valid": true,
            "policy": "reject"
        },
        "bimi": "v=BIMI1; l=https://img.tutu.ru/default.svg;",
        "mta_sts": "",
        "tls_rpt": ""
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                    "time_ms": 46.7
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                    "provider": "AdGuard",
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                    "time_ms": 270.5
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        "issuer": "GlobalSign nv-sa",
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        "valid_from": "2025-09-18T05:17:02-05:00",
        "valid_to": "2026-10-20T05:07:38-05:00",
        "days_remaining": 68,
        "san": [
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            "tutu.ru"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_256_GCM_SHA384"
    },
    "http": {
        "url": "https://www.tutu.ru/",
        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
            "location": "https://www.tutu.ru/",
            "x-content-type-options": "nosniff",
            "x-xss-protection": "1",
            "strict-transport-security": "max-age=15768000;includeSubdomains",
            "server-timing": "duration_ms; dur=199",
            "vary": "Accept-Encoding",
            "upstream_server": "",
            "date": "Wed, 12 Aug 2026 10:56:09 GMT",
            "server": "envoy",
            "x-powered-by": "Next.js",
            "x-node-request-id": "c46325bd-b3b0-4c46-9e68-2fff17cf47b4",
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            "content-security-policy": "frame-ancestors 'self'",
            "x-nextjs-cache": "HIT",
            "cache-control": "s-maxage=60, stale-while-revalidate=31535940,private",
            "etag": "\"y7jkw3fqud4i0w\"",
            "content-type": "text/html; charset=utf-8",
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            "x-session-id": "e9120826-fc7c-46c6-b50c-26f2883649cc",
            "x-session-id-max-age": "34560000"
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        "security_checks": {
            "strict-transport-security": true,
            "content-security-policy": true,
            "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
        },
        "server": "envoy",
        "powered_by": "Next.js"
    },
    "webpage": {
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        "title": "Tutu.ru: Авиа, ЖД, билеты на автобус, отели, расписание электричек и туры онлайн.\nСтоимость железнодорожных билетов и расписание, цены на 2026 год, заказ ж/д билетов, авиабилетов, бронирование отелей и билетов на автобусы.",
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        "error": "",
        "status": 200
    },
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            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
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        "ip": "216.73.216.212",
        "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": 116.18
}