{
    "ok": true,
    "domain": "yjtag.jp",
    "generated_at": "2026-08-10T01:55:23-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
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        "total": 49,
        "label": "Critical",
        "categories": {
            "dns": 60,
            "mail": 0,
            "security": 73,
            "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": "8 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."
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            {
                "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": 0,
                "lost_points": 10,
                "detail": "Agreement between public resolvers."
            },
            {
                "category": "mail",
                "title": "MX records",
                "max_points": 20,
                "earned_points": 0,
                "lost_points": 20,
                "detail": "0 MX record(s)."
            },
            {
                "category": "mail",
                "title": "SPF",
                "max_points": 25,
                "earned_points": 0,
                "lost_points": 25,
                "detail": "SPF policy not found."
            },
            {
                "category": "mail",
                "title": "DMARC",
                "max_points": 25,
                "earned_points": 0,
                "lost_points": 25,
                "detail": "DMARC policy not found."
            },
            {
                "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": 0,
                "lost_points": 5,
                "detail": "TLS reporting policy."
            },
            {
                "category": "security",
                "title": "Valid TLS certificate",
                "max_points": 55,
                "earned_points": 55,
                "lost_points": 0,
                "detail": "170 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": 8,
                "lost_points": 27,
                "detail": "2 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",
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                "earned_points": 0,
                "lost_points": 40,
                "detail": "HTTP/1.1 403 Forbidden"
            },
            {
                "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%.",
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                "level": "ok",
                "title": "IPv4 (A)",
                "detail": "8 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.",
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                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5
            },
            {
                "level": "error",
                "title": "DNS propagation",
                "detail": "Agreement between public resolvers.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 0,
                "lost_points": 10
            },
            {
                "level": "error",
                "title": "MX records",
                "detail": "0 MX record(s).",
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                "max_points": 20,
                "earned_points": 0,
                "lost_points": 20
            },
            {
                "level": "error",
                "title": "SPF",
                "detail": "SPF policy not found.",
                "category": "mail",
                "max_points": 25,
                "earned_points": 0,
                "lost_points": 25
            },
            {
                "level": "error",
                "title": "DMARC",
                "detail": "DMARC policy not found.",
                "category": "mail",
                "max_points": 25,
                "earned_points": 0,
                "lost_points": 25
            },
            {
                "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": "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",
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                "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": "2 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 8,
                "lost_points": 27
            },
            {
                "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/1.1 403 Forbidden",
                "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": {
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                "124.83.186.42",
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            "AAAA": [],
            "CNAME": [],
            "MX": [],
            "TXT": [
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                "ns11.yahoo.co.jp.",
                "ns12.yahoo.co.jp.",
                "ns01.yahoo.co.jp."
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            "SOA": [
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            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
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        "ipv4": [
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        "ipv6": []
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    "mail": {
        "spf": "",
        "dmarc": "",
        "dkim_selector": "x",
        "dkim_host": "",
        "dkim": "",
        "spf_analysis": {
            "valid": false,
            "lookups": 0,
            "final": "",
            "message": "Not published"
        },
        "dmarc_analysis": {
            "valid": false,
            "policy": ""
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
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    "advanced": {
        "ptr": "",
        "propagation": {
            "consistent": false,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
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                        "124.83.186.41",
                        "124.83.186.42",
                        "124.83.186.43",
                        "203.216.255.40",
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                    "time_ms": 231.69
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                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
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                        "124.83.186.41",
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                    "time_ms": 336.12
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                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
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                    "time_ms": 191.97
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
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                    "time_ms": 627.19
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                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
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                    "time_ms": 221.42
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    "ssl": {
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        "issuer": "Cybertrust Japan Co., Ltd.",
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        "valid_from": "2026-07-13T03:03:41-05:00",
        "valid_to": "2027-01-27T08:59:00-06:00",
        "days_remaining": 170,
        "san": [
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            "*.yimg.jp",
            "*.c.yimg.jp",
            "*.edge.storage-yahoo.jp",
            "*.east.edge.storage-yahoo.jp",
            "*.west.edge.storage-yahoo.jp",
            "*.global.edge.storage-yahoo.jp",
            "*.yahoobox.jp",
            "*.listing.yahoo.co.jp",
            "*.ane.yahoo.co.jp",
            "*.yjtag.yahoo.co.jp",
            "*.chiebukuro.yahoo.co.jp",
            "*.finance.yahoo.co.jp",
            "*.auctions.yahoo.co.jp",
            "*.shopping.yahoo.co.jp",
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            "*.news.yahoo.co.jp",
            "*.store.yahoo.co.jp",
            "*.east.edge.storage-yahoobox.jp",
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            "*.landpress-external.yahoo.co.jp",
            "lycorp-security.jp",
            "*.mail.yahoo.co.jp",
            "*.mail.yahooapis.jp",
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            "*.edit.yahoo.co.jp",
            "circus.shopping.yahooapis.jp",
            "test.circus.shopping.yahooapis.jp",
            "*.realestate.yahoo.co.jp",
            "attachment.yahoomail.jp",
            "*.shopping.c.yimg.jp",
            "test.pro.store.yahoo.co.jp",
            "*.lycorp-security.jp",
            "*.grmtrez.yahoo.co.jp",
            "account.psi.yahoo.co.jp",
            "web.invoice.yahoo.co.jp",
            "*.login.yahoo.co.jp",
            "*.auth.login.yahoo.co.jp",
            "*.yahoo.jp",
            "yjtag.jp",
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            "cart.order.yahoo.co.jp",
            "*.wallet.yahoo.co.jp",
            "e.developer.yahoo.co.jp",
            "login.bizmanager.yahoo.co.jp",
            "*.carview.co.jp",
            "*.yahoo-net.jp",
            "*.finance.yahooapis.jp",
            "yahoo.co.jp",
            "*.geocities.jp",
            "*.jobcatalog.yahoo.co.jp",
            "*.flava-cloud.com",
            "ucar.carview.yahoo.co.jp",
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            "inquiry.ms.yahoo.co.jp",
            "test.odhistory.shopping.yahoo.co.jp",
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            "*.buzzhome.yahoo-net.jp",
            "*.search.yahoo.co.jp"
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        "cipher": "ECDHE-RSA-AES128-GCM-SHA256"
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        "status": "HTTP/1.1 403 Forbidden",
        "http_version": "2",
        "headers": {
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            "content-length": "6764",
            "connection": "keep-alive",
            "x-content-type-options": "nosniff",
            "x-frame-options": "SAMEORIGIN",
            "x-xss-protection": "1; mode=block"
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        "security_checks": {
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            "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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        "powered_by": ""
    },
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        "url": "https://yjtag.jp/",
        "title": "ページが表示できません - Yahoo! JAPAN",
        "description": "",
        "success": true,
        "error": "",
        "status": 403
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            "region": "",
            "city": "",
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            "organization": "",
            "isp": ""
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            "city": "",
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            "organization": "",
            "isp": ""
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                "time_ms": 0.9,
                "banner": "",
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                "port": 465,
                "open": false,
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            {
                "port": 587,
                "open": false,
                "time_ms": 1471.7,
                "banner": "",
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    "visitor": {
        "ip": "216.73.217.62",
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        "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)",
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        "cloudflare": false
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