{
    "ok": true,
    "domain": "lit.link",
    "generated_at": "2026-08-09T03:00:43-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 81,
        "label": "Good",
        "categories": {
            "dns": 70,
            "mail": 90,
            "security": 81,
            "network": 50,
            "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": "5 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": "5 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": "57 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": 30,
                "lost_points": 0,
                "detail": "PTR: 84.151.149.34.bc.googleusercontent.com"
            },
            {
                "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": "5 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": "5 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": "57 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": "ok",
                "title": "PTR reverse DNS",
                "detail": "PTR: 84.151.149.34.bc.googleusercontent.com",
                "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": "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": [
                "34.149.151.84"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
                "10 ALT4.ASPMX.L.GOOGLE.COM.",
                "1 ASPMX.L.GOOGLE.COM.",
                "5 ALT2.ASPMX.L.GOOGLE.COM.",
                "5 ALT1.ASPMX.L.GOOGLE.COM.",
                "10 ALT3.ASPMX.L.GOOGLE.COM."
            ],
            "TXT": [
                "\"google-site-verification=ZuWpacJj79jfZSg5LrqptUEs8vK-xJl_q6whqfS7vrU\"",
                "\"google-site-verification=zEA5yRjt-1gY78hR7W3YiUFsQfCdujmFG17dmxr8MJs\"",
                "\"v=spf1 include:spf.am.arara.com include:_spf.google.com include:spf.bmv.jp ~all\"",
                "\"facebook-domain-verification=628g85wncjpf116tpjijpo5c4sn990\"",
                "\"google-site-verification=cZdvgxSojOoRiCiy6xweAWRm--ttJP9VqH_GxNwe1c8\""
            ],
            "NS": [
                "ns5.xserver.jp.",
                "ns1.xserver.jp.",
                "ns3.xserver.jp.",
                "ns2.xserver.jp.",
                "ns4.xserver.jp."
            ],
            "SOA": [
                ";; communications error to 69.64.44.20#53: timed out",
                "ns1.xserver.jp. root.xserver.jp. 0 10800 3600 604800 3600"
            ],
            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [
                ";; communications error to 69.64.44.20#53: timed out",
                ";; communications error to 69.64.44.50#53: timed out",
                "; <<>> DiG 9.18.39-0ubuntu0.22.04.4-Ubuntu <<>> lit.link RRSIG +short +time=1 +tries=1",
                ";; global options: +cmd",
                ";; no servers could be reached"
            ],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "34.149.151.84"
        ],
        "ipv6": []
    },
    "mail": {
        "spf": "v=spf1 include:spf.am.arara.com include:_spf.google.com include:spf.bmv.jp ~all",
        "dmarc": "v=DMARC1; p=quarantine; rua=mailto:dmarc-report@lit.link; pct=100;",
        "dkim_selector": "s1",
        "dkim_host": "s1._domainkey.lit.link",
        "dkim": "k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnBwXpaXE0A9iKaA5RjAg+Kbz4j2puUUldX3YfdrA6vrtieOOkuPYlKY7hxbQ6uzv3rYQkstL+hyJ39zduCfzjWIOkscQ9mGAjkMQSKBC+QFziezfGn98IrLHdJ2sz0xnHJK50vGoxmE8UPXtMyzVVIzO6LdYILIW48JtJn9n2GptNg4rGIAhTzU5YrSIZKtnDGw7kbrfAcbxeX15Kxw28QGnL/ORb7Z3IMeE8Osz06iyuKiKNnJdXwX+m/9ABrDzEzUmuZ53wpP0o/Fvq1giqaw05QnRQCVGMWyLTS0C/E0PkVKdwmd899PAFRyCJbzCYfJdqhDpnyYkw9YQ6OEvzQIDAQAB",
        "spf_analysis": {
            "valid": true,
            "lookups": 3,
            "final": "~all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "quarantine"
        },
        "bimi": "v=BIMI1;l=https://prd.storage.lit.link/images/assets/email/icon-bimi.svg",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "84.151.149.34.bc.googleusercontent.com",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "34.149.151.84"
                    ],
                    "time_ms": 40.55
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "34.149.151.84"
                    ],
                    "time_ms": 329.35
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "34.149.151.84"
                    ],
                    "time_ms": 23.3
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "34.149.151.84"
                    ],
                    "time_ms": 1337.59
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "34.149.151.84"
                    ],
                    "time_ms": 495.05
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "Google Trust Services",
        "subject": "lit.link",
        "valid_from": "2026-07-07T10:55:28-05:00",
        "valid_to": "2026-10-05T11:48:40-05:00",
        "days_remaining": 57,
        "san": [
            "lit.link"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_256_GCM_SHA384"
    },
    "http": {
        "url": "https://lit.link/",
        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
            "x-frame-options": "SAMEORIGIN",
            "x-content-type-options": "nosniff",
            "referrer-policy": "strict-origin-when-cross-origin",
            "permissions-policy": "camera=(), microphone=(), geolocation=()",
            "x-url": "https://localhost:8080/",
            "x-middleware-rewrite": "/ja",
            "vary": "rsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch, Accept-Encoding",
            "x-nextjs-cache": "HIT",
            "x-nextjs-prerender": "1",
            "x-nextjs-stale-time": "300",
            "x-powered-by": "Next.js",
            "cache-control": "s-maxage=31536000",
            "etag": "\"eqr3n6st6438qj\"",
            "content-type": "text/html; charset=utf-8",
            "x-cloud-trace-context": "ef07eca8b8d9b5691ac1d91e518a868d",
            "content-length": "179816",
            "date": "Sun, 09 Aug 2026 08:00:35 GMT",
            "server": "Google Frontend",
            "via": "1.1 google",
            "alt-svc": "h3=\":443\"; ma=2592000"
        },
        "security_checks": {
            "strict-transport-security": false,
            "content-security-policy": false,
            "x-content-type-options": true,
            "x-frame-options": true,
            "referrer-policy": true,
            "permissions-policy": true,
            "cross-origin-opener-policy": false,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": false
        },
        "server": "Google Frontend",
        "powered_by": "Next.js"
    },
    "webpage": {
        "url": "https://lit.link/",
        "title": "lit.link(リットリンク)",
        "description": "lit.link(リットリンク)は、無料機能が充実したSNSリンクまとめサービスです。instagram、X、TikTokなどで活動するインフルエンサーの他に、ユーチューバーや音楽関係者、飲食店などの幅広いマーケティングに活用され、個人では推し活などに利用されています。",
        "success": true,
        "error": "",
        "status": 200
    },
    "network": {
        "34.149.151.84": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "ALT4.ASPMX.L.GOOGLE.COM",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 0.6,
                "banner": "",
                "error": "Network is unreachable"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 4017.8,
                "banner": "",
                "error": "Connection timed out"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 4014.2,
                "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": 79.65
}