{
    "ok": true,
    "domain": "yahoo.co.jp",
    "generated_at": "2026-08-08T18:36:28-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 76,
        "label": "Good",
        "categories": {
            "dns": 75,
            "mail": 70,
            "security": 77,
            "network": 35,
            "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": "12 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": 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": "4 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": 0,
                "lost_points": 5,
                "detail": "TLS reporting policy."
            },
            {
                "category": "security",
                "title": "Valid TLS certificate",
                "max_points": 55,
                "earned_points": 55,
                "lost_points": 0,
                "detail": "117 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": 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": 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."
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        ],
        "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": "12 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": "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": "4 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": "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": "117 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": "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",
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                "category": "network",
                "max_points": 35,
                "earned_points": 0,
                "lost_points": 35
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            {
                "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 ",
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                "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
            }
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                "10 mx3.mail.yahoo.co.jp."
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            "TXT": [
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            "NS": [
                "ns02.yahoo.co.jp.",
                "ns12.yahoo.co.jp.",
                "ns11.yahoo.co.jp.",
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            "SOA": [
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            "CAA": [
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                "0 issue \"globalsign.com\"",
                "0 iodef \"mailto:nic-admin@mail.yahoo.co.jp\"",
                "0 issue \"cybertrust.ne.jp\""
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            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
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        "ipv4": [
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            "182.22.31.252",
            "182.22.16.123",
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        "ipv6": []
    },
    "mail": {
        "spf": "v=spf1 include:spf.yahoo.co.jp ~all",
        "dmarc": "v=DMARC1; p=quarantine; rua=mailto:ymail_dmarc_report@yahoo.co.jp",
        "dkim_selector": "x",
        "dkim_host": "",
        "dkim": "",
        "spf_analysis": {
            "valid": true,
            "lookups": 1,
            "final": "~all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "quarantine"
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
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    "advanced": {
        "ptr": "",
        "propagation": {
            "consistent": true,
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                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
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                    "provider": "Cloudflare",
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                    "provider": "Quad9",
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                    "time_ms": 199.1
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                    "provider": "OpenDNS",
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                    "time_ms": 221
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                {
                    "provider": "AdGuard",
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    "ssl": {
        "available": true,
        "issuer": "Cybertrust Japan Co., Ltd.",
        "subject": "edge01.yahoo.co.jp",
        "valid_from": "2025-11-05T05:06:13-06:00",
        "valid_to": "2026-12-04T08:59:00-06:00",
        "days_remaining": 117,
        "san": [
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            "*.yahoo.co.jp",
            "*.yahooapis.jp",
            "*.ane.yahoo.co.jp",
            "*.auctions.yahoo.co.jp",
            "*.auctions.yahooapis.jp",
            "*.box.yahooapis.jp",
            "*.bylines.news.yahoo.co.jp",
            "*.c.yimg.jp",
            "*.carnavi.yahooapis.jp",
            "*.carview.co.jp",
            "*.carview.yahoo.co.jp",
            "*.chiebukuro.yahoo.co.jp",
            "*.clorder.yahoo.co.jp",
            "*.cvw.jp",
            "*.digitalguide.jp",
            "*.east.edge.storage-yahoo.jp",
            "*.east.edge.storage-yahoobox.jp",
            "*.edge.storage-yahoo.jp",
            "*.edit.yahooapis.jp",
            "*.finance.yahoo.co.jp",
            "*.geocities.jp",
            "*.global.edge.storage-yahoo.jp",
            "*.gyao.yahoo.co.jp",
            "*.jobcatalog.yahoo.co.jp",
            "*.listing.yahoo.co.jp",
            "*.loco.yahoo.co.jp",
            "*.lycorp.co.jp",
            "*.mail.yahoo.co.jp",
            "*.marketing.yahoo.co.jp",
            "*.mkcloud-api.carview.co.jp",
            "*.mkimg.carview.co.jp",
            "*.ms.yahoo.co.jp",
            "*.lycorp-security.jp",
            "*.news.yahoo.co.jp",
            "*.news.yahooapis.jp",
            "*.order.yahoo.co.jp",
            "*.points.yahoo.co.jp",
            "*.psi.yahoo.co.jp",
            "activity.travel.yahoo-net.jp",
            "*.search.yahooapis.jp",
            "*.shopping.c.yimg.jp",
            "*.shopping.srv.yimg.jp",
            "*.shopping.yahoo.co.jp",
            "*.shopping.yahooapis.jp",
            "*.snsimg.carview.co.jp",
            "*.store.yahoo.co.jp",
            "*.travel.yahoo.co.jp",
            "*.wallet.yahoo.co.jp",
            "*.wallet.yahooapis.jp",
            "*.webhosting.yahoo.co.jp",
            "*.west.edge.storage-yahoo.jp",
            "*.west.edge.storage-yahoobox.jp",
            "*.xml.listing.yahoo.co.jp",
            "*.yahoo-help.jp",
            "*.yahoo-net.jp",
            "*.yahoo.jp",
            "*.yahoobox.jp",
            "*.yimg.jp",
            "*.yjtag.jp",
            "*.yjtag.yahoo.co.jp",
            "*.ys-insurance.co.jp",
            "*.push.yahooapis.jp",
            "add.dir.yahoo.co.jp",
            "api.y.clorder.yahoo.co.jp",
            "arc.help.yahoo.co.jp",
            "biztx.points.yahooapis.jp",
            "carview.co.jp",
            "cgi2.r-agent.yahoo.co.jp",
            "cksync.pdsp.yahoo.co.jp",
            "cm.froma.yahoo.co.jp",
            "compass.ymobile.yahoo.co.jp",
            "custom.search.yahoo.co.jp",
            "e.developer.yahoo.co.jp",
            "forms.business.yahoo.co.jp",
            "frame.games.yahoo.co.jp",
            "hrm.grmtrez.yahoo.co.jp",
            "im.ov.yahoo.co.jp",
            "info.hatalike.yahoo.co.jp",
            "movie.chocotle.yahoo.co.jp",
            "online.security.yahoo.co.jp",
            "poiedit.map.yahoo.co.jp",
            "portal.yadui.business.yahoo.co.jp",
            "ssl-tools.kainavi.search.yahoo.co.jp",
            "ssl.api.olp.yahooapis.jp",
            "ssl.map.srv.yimg.jp",
            "www.bosaiguide.jp",
            "www.lohaco.yahoo.co.jp",
            "www.search311.jp",
            "www.sp-hinan.jp",
            "www.techbasevn.com",
            "yahoo.co.jp",
            "yahoo.jp",
            "yj.pn",
            "yjtag.jp"
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        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_128_GCM_SHA256"
    },
    "http": {
        "url": "https://www.yahoo.co.jp:443/",
        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
            "date": "Sat, 08 Aug 2026 23:36:18 GMT",
            "cache-control": "no-store",
            "location": "https://www.yahoo.co.jp:443/",
            "content-type": "text/html; charset=utf-8",
            "content-language": "en",
            "accept-ch": "Sec-CH-UA-Full-Version-List, Sec-CH-UA-Model, Sec-CH-UA-Platform-Version, Sec-CH-UA-Arch",
            "permissions-policy": "unload=()",
            "content-length": "0",
            "x-xss-protection": "1; mode=block",
            "etag": "W/\"0-2jmj7l5rSw0yVb/vlWAYkK/YBwk\"",
            "vary": "Accept-Encoding",
            "x-content-type-options": "nosniff",
            "x-frame-options": "SAMEORIGIN",
            "age": "0"
        },
        "security_checks": {
            "strict-transport-security": false,
            "content-security-policy": false,
            "x-content-type-options": true,
            "x-frame-options": true,
            "referrer-policy": false,
            "permissions-policy": true,
            "cross-origin-opener-policy": false,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": false
        },
        "server": "",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://www.yahoo.co.jp:443/",
        "title": "Yahoo! JAPAN",
        "description": "あなたの毎日をアップデートする情報ポータル。検索、ニュース、天気、スポーツ、メール、ショッピング、オークションなど便利なサービスを展開しています。",
        "success": true,
        "error": "",
        "status": 200
    },
    "network": {
        "124.83.185.124": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "124.83.184.124": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "183.79.219.124": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "182.22.24.252": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "mx5.mail.yahoo.co.jp",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 181.2,
                "banner": "",
                "error": "Connection refused"
            },
            {
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