{
    "ok": true,
    "domain": "tails.net",
    "generated_at": "2026-08-10T11:17:39-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 84,
        "label": "Good",
        "categories": {
            "dns": 80,
            "mail": 100,
            "security": 77,
            "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": "2 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": 15,
                "lost_points": 0,
                "detail": "DS and DNSKEY detected."
            },
            {
                "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": 0,
                "lost_points": 10,
                "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": 5,
                "lost_points": 0,
                "detail": "Mail transport policy."
            },
            {
                "category": "mail",
                "title": "TLS-RPT",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0,
                "detail": "TLS reporting policy."
            },
            {
                "category": "security",
                "title": "Valid TLS certificate",
                "max_points": 55,
                "earned_points": 55,
                "lost_points": 0,
                "detail": "77 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": 30,
                "lost_points": 0,
                "detail": "PTR: lizard.tails.net"
            },
            {
                "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/1.1 200 OK"
            },
            {
                "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": "2 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": "ok",
                "title": "DNSSEC chain",
                "detail": "DS and DNSKEY detected.",
                "category": "dns",
                "max_points": 15,
                "earned_points": 15,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "CAA policy",
                "detail": "Certificate authority restriction.",
                "category": "dns",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0
            },
            {
                "level": "error",
                "title": "DNS propagation",
                "detail": "Agreement between public resolvers.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 0,
                "lost_points": 10
            },
            {
                "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": "ok",
                "title": "MTA-STS",
                "detail": "Mail transport policy.",
                "category": "mail",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "TLS-RPT",
                "detail": "TLS reporting policy.",
                "category": "mail",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "Valid TLS certificate",
                "detail": "77 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": "ok",
                "title": "PTR reverse DNS",
                "detail": "PTR: lizard.tails.net",
                "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/1.1 200 OK",
                "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": [
                "204.13.164.63"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
                "10 mta.tails.net."
            ],
            "TXT": [
                "\"v=spf1 a mx ip4:216.66.23.43 -all\"",
                "\"google-site-verification=AcMH6Or6DvT9OHS19qYjcSIPTHv8jB1Z6lbOWpOAl7U\""
            ],
            "NS": [
                "ns1.tails.net.",
                "ns2.tails.net."
            ],
            "SOA": [
                "ns1.tails.net. sysadmins.tails.net. 2026012705 10800 3600 1209600 3600"
            ],
            "CAA": [
                "128 issue \"letsencrypt.org;accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/3602348081\"",
                "128 issue \"letsencrypt.org;accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/1357651026\"",
                "128 issue \"letsencrypt.org;accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/1693187057\"",
                "128 issue \"letsencrypt.org;accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/1259382666\"",
                "128 issue \"letsencrypt.org;accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/5189306\"",
                "128 issue \"letsencrypt.org;accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/5194671\"",
                "128 issue \"letsencrypt.org;accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/2939509766\"",
                "128 issue \"letsencrypt.org;accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/1554891957\"",
                "128 issue \"letsencrypt.org;accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/2984823086\""
            ],
            "DS": [
                "46768 13 2 25FB8A8E636AAF16FC3DA872DD64597BA57B67DB430A4DB6B53A4150 EBB4EB0A"
            ],
            "DNSKEY": [
                "257 3 13 GjgOqygBvTZqUlDJpytFzLRXKhwCwHFZ0t3GpsNzYffSBwmmaHkofPCN vT6dlWxWuKnWuCv1KGynfCZP/j8Wyw=="
            ],
            "RRSIG": [
                "DNSKEY 13 2 3600 20260820000000 20260730000000 46768 tails.net. tUg25SRG1RhJ+TCTRl4Z0XWJOGuCQF16lNuGYgg1a6Zuq1HTfiOUJdrG 9hWBkwY1g0z9otaYMjnugO6FhDnz1Q==",
                "NS 13 2 3600 20260820000000 20260730000000 46768 tails.net. NkZPSMXahu++LpwLtxVOC4k1mq38wt30NS0nAuiGKgSsUBVdmGYrdM5k sf7w7YwVs9RDTW6T+uy+oX2Vh4kDeg==",
                "MX 13 2 3600 20260820000000 20260730000000 46768 tails.net. yvCiIs9uARgX1E0tja8c5J5getUrPNyib3nKDXyIqQWEMD4k/gxkosyM M+PEKS+FIHvENNRcZ5vRTGjlRWAbxw==",
                "A 13 2 150 20260820000000 20260730000000 46768 tails.net. oyTbLGtG+ElOt3kickq93xDryOB/pM7B9WNAfiDlEgDHE3wqCwelYRdo M3vmUOEkImG9PHJgPoZTVKgdNjYyUg==",
                "DS 13 2 86400 20260815033846 20260808022846 7272 net. ZglnRcQtvnYsoO+VeztsT4oHHHS+h6ppKwqzXnZV68BczPSakRXI9Mzs H0c5am1w2Z9RGvTCZ4yziQlooRLbvA=="
            ],
            "NSEC": [
                "_dmarc.tails.net. A NS SOA MX TXT RRSIG NSEC DNSKEY CAA"
            ],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "204.13.164.63"
        ],
        "ipv6": []
    },
    "mail": {
        "spf": "v=spf1 a mx ip4:216.66.23.43 -all",
        "dmarc": "v=DMARC1; p=quarantine; rua=mailto:dmarc@tails.net; ruf=mailto:dmarc@tails.net;",
        "dkim_selector": "dkim",
        "dkim_host": "dkim._domainkey.tails.net",
        "dkim": "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDFgYpT+hfZANtArFoOPV6lrLBcr42pDwsaYj6RRn1w2wibWwEOTlk2nQ786KPxWeHtlUcX/d9ig3wSpBTk+SkXHFkFyAqqE//yyXjb5kpTcg5i7xfelo7RB2CmBA3qBWmgaqTefXtTxmHA77pnIRGK5YiWv9p6Ixp4O17VVhZ+xwIDAQAB",
        "spf_analysis": {
            "valid": true,
            "lookups": 2,
            "final": "-all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "quarantine"
        },
        "bimi": "",
        "mta_sts": "v=STSv1; id=tungaiD7shu6e5gh;",
        "tls_rpt": "v=TLSRPTv1; rua=mailto:dmarc@tails.net;"
    },
    "advanced": {
        "ptr": "lizard.tails.net",
        "propagation": {
            "consistent": false,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "204.13.164.63"
                    ],
                    "time_ms": 169.61
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "204.13.164.63"
                    ],
                    "time_ms": 100.32
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "94.142.244.34"
                    ],
                    "time_ms": 210.18
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "204.13.164.63"
                    ],
                    "time_ms": 238.08
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "94.142.244.34"
                    ],
                    "time_ms": 68.29
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "Let's Encrypt",
        "subject": "tails.net",
        "valid_from": "2026-07-28T12:40:37-05:00",
        "valid_to": "2026-10-26T12:40:36-05:00",
        "days_remaining": 77,
        "san": [
            "tails.net"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_256_GCM_SHA384"
    },
    "http": {
        "url": "https://tails.net/",
        "status": "HTTP/1.1 200 OK",
        "http_version": "2",
        "headers": {
            "server": "nginx/1.26.3",
            "date": "Mon, 10 Aug 2026 16:17:35 GMT",
            "content-type": "text/html",
            "content-length": "13596",
            "last-modified": "Thu, 22 Jan 2026 10:27:14 GMT",
            "connection": "keep-alive",
            "vary": "Accept-Encoding",
            "etag": "\"6971fb82-351c\"",
            "link": "<https://tails.net/>; rel=\"canonical\"",
            "strict-transport-security": "max-age=31536000; includeSubDomains; preload",
            "x-content-type-options": "nosniff",
            "x-frame-options": "sameorigin",
            "x-xss-protection": "1; mode=block",
            "accept-ranges": "bytes"
        },
        "security_checks": {
            "strict-transport-security": true,
            "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
        },
        "server": "nginx/1.26.3",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://tails.net/",
        "title": "Tails - Home",
        "description": "",
        "success": true,
        "error": "",
        "status": 200
    },
    "network": {
        "204.13.164.63": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "mta.tails.net",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 55.7,
                "banner": "",
                "error": "Connection refused"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 4071.6,
                "banner": "",
                "error": "Connection timed out"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 151.9,
                "banner": "220 mta.tails.net ESMTP Postfix (Debian/GNU)",
                "error": "No connection"
            }
        ]
    },
    "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": 108.48
}