{
    "ok": true,
    "domain": "couchsurfing.org",
    "generated_at": "2026-08-11T02:55:35-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 86,
        "label": "Good",
        "categories": {
            "dns": 70,
            "mail": 90,
            "security": 92,
            "network": 65,
            "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": "2 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": 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": "7 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": "54 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": 27,
                "lost_points": 8,
                "detail": "7 of 9 evaluated headers detected."
            },
            {
                "category": "network",
                "title": "PTR reverse DNS",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0,
                "detail": "PTR: ec2-54-221-197-191.compute-1.amazonaws.com"
            },
            {
                "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."
            }
        ],
        "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": "2 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.",
                "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": "7 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": "54 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": "7 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 27,
                "lost_points": 8
            },
            {
                "level": "ok",
                "title": "PTR reverse DNS",
                "detail": "PTR: ec2-54-221-197-191.compute-1.amazonaws.com",
                "category": "network",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0
            },
            {
                "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": "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": [
                "54.221.197.191",
                "100.56.120.98"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
                "20 aspmx3.googlemail.com.",
                "20 aspmx4.googlemail.com.",
                "0 aspmx.l.google.com.",
                "10 alt2.aspmx.l.google.com.",
                "10 alt1.aspmx.l.google.com.",
                "20 aspmx5.googlemail.com.",
                "15 aspmx2.googlemail.com."
            ],
            "TXT": [
                "\"google-site-verification=TE909P1vvXukGszwEl3PFeksElysm2Gs-0MVYG9YZa0\"",
                "\"google-site-verification=POiBkRENN-wRw9zSTlyJ4UuC18DbN0Gf7PQxeF3vCw8\"",
                "\"dbja65q9k9qui4prmlogvsjcqe\"",
                "\"google-site-verification=ARpyPime_UUyzQa0IxgtdC6LODaKcW9oZIebYC7eEJI\"",
                "\"v=spf1 a mx ip4:107.23.158.23 ip4:107.23.200.67 ip4:54.236.187.135 ip4:54.236.107.37 include:_spf.google.com ~all\""
            ],
            "NS": [
                "ns-761.awsdns-31.net.",
                "ns-1907.awsdns-46.co.uk.",
                "ns-93.awsdns-11.com.",
                "ns-1479.awsdns-56.org."
            ],
            "SOA": [
                "ns-761.awsdns-31.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400"
            ],
            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "54.221.197.191",
            "100.56.120.98"
        ],
        "ipv6": []
    },
    "mail": {
        "spf": "v=spf1 a mx ip4:107.23.158.23 ip4:107.23.200.67 ip4:54.236.187.135 ip4:54.236.107.37 include:_spf.google.com ~all",
        "dmarc": "v=DMARC1; p=reject; rua=mailto:postmaster@couchsurfing.org,mailto:hbfmzraa@ag.dmarcian.com; ruf=mailto:postmaster@couchsurfing.org,mailto:hbfmzraa@fr.dmarcian.com; rf=afrf; pct=100",
        "dkim_selector": "google",
        "dkim_host": "google._domainkey.couchsurfing.org",
        "dkim": "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCJTxfrRoOHc3tV1em058oaeZmP/W6AahHrMh0uVjf4vTMEmDlpuZYdU0PrYQY7aK5c4y5NSqWxxZD/niAf9TIhySS1ggzByiXQjpH57iH86L+gZoO4Gel0ZcTsOHOJ7zdub6sgJ1XtESfs0aDtfyiz5vuBZBVykvhrzhicViSpBQIDAQAB",
        "spf_analysis": {
            "valid": true,
            "lookups": 3,
            "final": "~all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "reject"
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "ec2-54-221-197-191.compute-1.amazonaws.com",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "100.56.120.98",
                        "54.221.197.191"
                    ],
                    "time_ms": 73.42
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "100.56.120.98",
                        "54.221.197.191"
                    ],
                    "time_ms": 94.5
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "100.56.120.98",
                        "54.221.197.191"
                    ],
                    "time_ms": 70.73
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "100.56.120.98",
                        "54.221.197.191"
                    ],
                    "time_ms": 135.17
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "100.56.120.98",
                        "54.221.197.191"
                    ],
                    "time_ms": 262.44
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "Amazon",
        "subject": "couchsurfing.org",
        "valid_from": "2026-03-20T19:00:00-05:00",
        "valid_to": "2026-10-04T18:59:59-05:00",
        "days_remaining": 54,
        "san": [
            "couchsurfing.org",
            "*.couchsurfing.org"
        ],
        "protocol": "TLSv1.2",
        "cipher": "ECDHE-RSA-AES128-GCM-SHA256"
    },
    "http": {
        "url": "https://www.couchsurfing.com:443/",
        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
            "server": "awselb/2.0",
            "date": "Tue, 11 Aug 2026 07:55:26 GMT",
            "content-type": "text/html; charset=utf-8",
            "content-length": "134",
            "location": "https://www.couchsurfing.com:443/",
            "x-content-type-options": "nosniff",
            "referrer-policy": "strict-origin-when-cross-origin",
            "x-frame-options": "DENY",
            "cross-origin-resource-policy": "same-site",
            "cross-origin-opener-policy": "same-origin-allow-popups",
            "access-control-allow-methods": "GET, POST, PUT, DELETE, OPTIONS",
            "access-control-allow-headers": "Content-Type, Cookie",
            "strict-transport-security": "max-age=63072000; includeSubDomains; preload",
            "access-control-allow-origin": "https://www.couchsurfing.com",
            "content-security-policy": "default-src 'none'; manifest-src 'self' https://production-origin-cdn.couchsurfing.com https://preflight-production-origin-cdn.couchsurfing.com; script-src 'self' https: 'nonce-Y2M4ZmZhNzYtMWUwNC00OWQ5LThhYTQtYjE0M2IwOTI1MTBl' 'strict-dynamic' 'unsafe-eval' https://js.appboycdn.com/ https://cdn.rudderlabs.com/ https://cdn.rudderstack.com/ https://cdn.cookielaw.org/ https://www.googletagmanager.com https://c.sandbox.paypal.com https://c.paypal.com https://b.stats.paypal.com https://production-origin-cdn.couchsurfing.com https://preflight-production-origin-cdn.couchsurfing.com; style-src 'self' 'unsafe-inline' https://production-origin-cdn.couchsurfing.com https://preflight-production-origin-cdn.couchsurfing.com; style-src-elem 'self' 'unsafe-inline' https://fonts.googleapis.com https://use.fontawesome.com https://production-origin-cdn.couchsurfing.com https://preflight-production-origin-cdn.couchsurfing.com; img-src 'self' blob: data: lh3.googleusercontent.com https://production-origin-cdn.couchsurfing.com https://preflight-production-origin-cdn.couchsurfing.com storage.googleapis.com cdn.cookielaw.org https://*.stream-io-cdn.com https://us-east.stream-io-cdn.com https://www.googletagmanager.com https://c.sandbox.paypal.com https://c.paypal.com https://b.stats.paypal.com https://braze-images.com; font-src 'self' fonts.gstatic.com https://use.fontawesome.com https://production-origin-cdn.couchsurfing.com https://preflight-production-origin-cdn.couchsurfing.com; object-src 'none'; base-uri 'self'; form-action 'self'; upgrade-insecure-requests; connect-src 'self' https: ws: wss: chat.stream-io-api.com https://www.googletagmanager.com https://www.google-analytics.com https://api-secure.amplitude.com; worker-src 'self' blob:; child-src 'self' blob:; frame-src 'self' https://api.recurly.com https://c.sandbox.paypal.com https://c.paypal.com https://b.stats.paypal.com https://js.stripe.com https://www.google.com https://*.stream-io-cdn.com https://us-east.stream-io-cdn.com;",
            "set-cookie": "SURF_DEVICE=3HlFotV2QvdGhnUZ681CXJMC062; Path=/; HttpOnly; SameSite=Lax; Secure; Max-Age=31536000",
            "x-middleware-rewrite": "/c/default",
            "vary": "rsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch, Accept-Encoding",
            "link": "</_next/static/media/3359c9acc30ef440-s.p.woff2>; rel=preload; as=\"font\"; crossorigin=\"\"; nonce=\"Y2M4ZmZhNzYtMWUwNC00OWQ5LThhYTQtYjE0M2IwOTI1MTBl\"; type=\"font/woff2\", </_next/static/media/36ca8a8dfa3453d4-s.p.woff2>; rel=preload; as=\"font\"; crossorigin=\"\"; nonce=\"Y2M4ZmZhNzYtMWUwNC00OWQ5LThhYTQtYjE0M2IwOTI1MTBl\"; type=\"font/woff2\", </_next/static/media/3988c35203e0830a-s.p.woff2>; rel=preload; as=\"font\"; crossorigin=\"\"; nonce=\"Y2M4ZmZhNzYtMWUwNC00OWQ5LThhYTQtYjE0M2IwOTI1MTBl\"; type=\"font/woff2\", </_next/static/media/83ad8d172e8a3db5-s.p.woff2>; rel=preload; as=\"font\"; crossorigin=\"\"; nonce=\"Y2M4ZmZhNzYtMWUwNC00OWQ5LThhYTQtYjE0M2IwOTI1MTBl\"; type=\"font/woff2\", </_next/static/media/91c3caac73720166-s.p.woff2>; rel=preload; as=\"font\"; crossorigin=\"\"; nonce=\"Y2M4ZmZhNzYtMWUwNC00OWQ5LThhYTQtYjE0M2IwOTI1MTBl\"; type=\"font/woff2\", </_next/static/media/aff755c8b4bb3089-s.p.woff2>; rel=preload; as=\"font\"; crossorigin=\"\"; nonce=\"Y2M4ZmZhNzYtMWUwNC00OWQ5LThhYTQtYjE0M2IwOTI1MTBl\"; type=\"font/woff2\", </_next/static/media/c43729a3c17a9c70-s.p.woff2>; rel=preload; as=\"font\"; crossorigin=\"\"; nonce=\"Y2M4ZmZhNzYtMWUwNC00OWQ5LThhYTQtYjE0M2IwOTI1MTBl\"; type=\"font/woff2\", </_next/static/media/e4af272ccee01ff0-s.p.woff2>; rel=preload; as=\"font\"; crossorigin=\"\"; nonce=\"Y2M4ZmZhNzYtMWUwNC00OWQ5LThhYTQtYjE0M2IwOTI1MTBl\"; type=\"font/woff2\", </_next/static/css/e21e517faeccf640.css>; rel=preload; as=\"style\"; nonce=\"Y2M4ZmZhNzYtMWUwNC00OWQ5LThhYTQtYjE0M2IwOTI1MTBl\", </_next/static/css/1405c2cece0df67e.css>; rel=preload; as=\"style\"; nonce=\"Y2M4ZmZhNzYtMWUwNC00OWQ5LThhYTQtYjE0M2IwOTI1MTBl\", </_next/static/css/b5a05dff0a82d127.css>; rel=preload; as=\"style\"; nonce=\"Y2M4ZmZhNzYtMWUwNC00OWQ5LThhYTQtYjE0M2IwOTI1MTBl\", </_next/static/css/47fdaabc3cef6176.css>; rel=preload; as=\"style\"; nonce=\"Y2M4ZmZhNzYtMWUwNC00OWQ5LThhYTQtYjE0M2IwOTI1MTBl\"",
            "x-powered-by": "Next.js",
            "cache-control": "private, no-cache, no-store, max-age=0, must-revalidate",
            "via": "1.1 google",
            "alt-svc": "h3=\":443\"; ma=2592000"
        },
        "security_checks": {
            "strict-transport-security": true,
            "content-security-policy": true,
            "x-content-type-options": true,
            "x-frame-options": true,
            "referrer-policy": true,
            "permissions-policy": false,
            "cross-origin-opener-policy": true,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": true
        },
        "server": "awselb/2.0",
        "powered_by": "Next.js"
    },
    "webpage": {
        "url": "https://www.couchsurfing.com:443/",
        "title": "Couchsurfing",
        "description": "Connect with locals worldwide. Find places to stay, meet new people, find local events, and experience travel through real connections.",
        "success": true,
        "error": "",
        "status": 200
    },
    "network": {
        "54.221.197.191": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "100.56.120.98": {
            "success": true,
            "country": "United States",
            "country_code": "US",
            "region": "District of Columbia",
            "city": "Washington",
            "latitude": 38.89511,
            "longitude": -77.03637,
            "asn": 14618,
            "organization": "Amazon Data Services Northern Virginia",
            "isp": "Amazon.com, Inc.",
            "timezone": "America/New_York"
        }
    },
    "smtp": {
        "host": "aspmx3.googlemail.com",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 0.7,
                "banner": "",
                "error": "Network is unreachable"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 4015.2,
                "banner": "",
                "error": "Connection timed out"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 4010.9,
                "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": 79.39
}