{
    "ok": true,
    "domain": "fb.com",
    "generated_at": "2026-08-08T17:52:38-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 86,
        "label": "Good",
        "categories": {
            "dns": 70,
            "mail": 90,
            "security": 84,
            "network": 85,
            "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": 10,
                "lost_points": 0,
                "detail": "1 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": 0,
                "lost_points": 10,
                "detail": "Agreement between public resolvers."
            },
            {
                "category": "mail",
                "title": "MX records",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "2 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": "8 day(s) remaining."
            },
            {
                "category": "security",
                "title": "Certificate lifetime",
                "max_points": 10,
                "earned_points": 2,
                "lost_points": 8,
                "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: edge-star-mini-shv-02-ord5.facebook.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": 35,
                "lost_points": 0,
                "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": "ok",
                "title": "IPv6 (AAAA)",
                "detail": "1 IPv6 address(es) detected.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "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": "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": "2 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": "8 day(s) remaining.",
                "category": "security",
                "max_points": 55,
                "earned_points": 55,
                "lost_points": 0
            },
            {
                "level": "warning",
                "title": "Certificate lifetime",
                "detail": "Full points require at least 30 days remaining.",
                "category": "security",
                "max_points": 10,
                "earned_points": 2,
                "lost_points": 8
            },
            {
                "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: edge-star-mini-shv-02-ord5.facebook.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": "ok",
                "title": "IPv6 connectivity",
                "detail": "AAAA availability.",
                "category": "network",
                "max_points": 35,
                "earned_points": 35,
                "lost_points": 0
            },
            {
                "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": [
                "157.240.254.35"
            ],
            "AAAA": [
                "2a03:2880:f175:181:face:b00c:0:25de"
            ],
            "CNAME": [],
            "MX": [
                "10 mxb-00082601.gslb.pphosted.com.",
                "10 mxa-00082601.gslb.pphosted.com."
            ],
            "TXT": [
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                "\"mentimeter-8599dcd1-e0da-4326-882e-7570e7c942fb\"",
                "\"I2B7AuxY6G1G_NeiaHF-9A0zn-3NDBnlOBi4zItNCU8\"",
                "\"586957ce-d11e-4efa-9fe5-a887498bf838\"",
                "\"mentimeter-16bdc82d-93be-47de-a6d4-fd6adb17c403\"",
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                "\"MS=ms56927146\"",
                "\"smartsheet-site-validation=r-TtxwzdAh2KN_Zi6mTLGu02fz-9vQU4\"",
                "\"v=spf1 redirect=_spf.fb.com\"",
                "\"google-site-verification=Dsycvk_Ky3uQjdvuPrI_Z6A98lWghNTntdS4LuATOj8\"",
                "\"G3X1k1XGYGra1nUpTv7Rdk2wAEFHfkKIr9/4/6+Nu67Ks9cR8xaiqAZPPhis9lGD6mb/+9vygIr4QKXIpxIc7w==\"",
                "\"atlassian-domain-verification=I7HLjLnlhJiDT58wzrru2Pd/2cRWa3AKlgCjDPOO43GMP7H0QuafH6eBts3D1GaP\"",
                "\"smartsheet-site-validation=sB5xgx-1nsnQCgORYUhnyDG3Jr739OxJ\""
            ],
            "NS": [
                "d.ns.facebook.com.",
                "a.ns.facebook.com.",
                "c.ns.facebook.com.",
                "b.ns.facebook.com."
            ],
            "SOA": [
                "a.ns.facebook.com. dns.facebook.com. 4207849484 14400 1800 604800 3600"
            ],
            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "157.240.254.35"
        ],
        "ipv6": [
            "2a03:2880:f175:181:face:b00c:0:25de"
        ]
    },
    "mail": {
        "spf": "v=spf1 redirect=_spf.fb.com",
        "dmarc": "v=DMARC1; p=reject; pct=100; rua=mailto:a@dmarc.facebookmail.com",
        "dkim_selector": "google",
        "dkim_host": "google._domainkey.fb.com",
        "dkim": "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0BvvGggwjm+X9FLAB0cA8kZCtRYrjeCsdBb4mFGZUn6sO5OCvLTFHa6MVHlYU46dfsQnA9SCsjoSHJ9u4horZ7mXrP4AOexLKxuhY7mQJ2qZjug93WDPD60BWVuEZyzWaoNQbVGx2nERotVLKNqNPBXVXvZ2GcsHKVROLR36gQIJlZO+MNmBGmfVsd1caYXaFn6ZgcHh1hV8ppa4StMBY+b9dr/rMfe+xE1bkUdlPaTQkjaf5kKYHaOS6X+2xPnm3WkI2h2tVTgmn0sQX0jM3nqLVgbCn6waSVmosbYiwPbhZDjZOX6Nk/Aisc6xjjf5wv+PUq+7XrTj7sQ8FV0OYQIDAQAB",
        "spf_analysis": {
            "valid": true,
            "lookups": 1,
            "final": "",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "reject"
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "edge-star-mini-shv-02-ord5.facebook.com",
        "propagation": {
            "consistent": false,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
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                    ],
                    "time_ms": 85.1
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
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                    ],
                    "time_ms": 44.22
                },
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                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
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                    ],
                    "time_ms": 39.53
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "57.144.204.1"
                    ],
                    "time_ms": 51.27
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "157.240.26.35"
                    ],
                    "time_ms": 67.64
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            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "DigiCert Inc",
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        "valid_from": "2026-05-17T19:00:00-05:00",
        "valid_to": "2026-08-16T18:59:59-05:00",
        "days_remaining": 8,
        "san": [
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            "fb.com"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_CHACHA20_POLY1305_SHA256"
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    "http": {
        "url": "https://www.facebook.com/",
        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
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            "reporting-endpoints": "coop_report=\"https://www.facebook.com/browser_reporting/coop/?minimize=0\", default=\"https://www.facebook.com/ajax/browser_error_reports/?device_level=unknown&brsid=7671797531679633958&cpp=C3&cv=1044800587&st=1786229557821\", permissions_policy=\"https://www.facebook.com/ajax/browser_error_reports/\"",
            "report-to": "{\"max_age\":2592000,\"endpoints\":[{\"url\":\"https:\\/\\/www.facebook.com\\/browser_reporting\\/coop\\/?minimize=0\"}],\"group\":\"coop_report\",\"include_subdomains\":true}, {\"max_age\":259200,\"endpoints\":[{\"url\":\"https:\\/\\/www.facebook.com\\/ajax\\/browser_error_reports\\/?device_level=unknown&brsid=7671797531679633958&cpp=C3&cv=1044800587&st=1786229557821\"}]}, {\"max_age\":21600,\"endpoints\":[{\"url\":\"https:\\/\\/www.facebook.com\\/ajax\\/browser_error_reports\\/\"}],\"group\":\"permissions_policy\"}",
            "cross-origin-embedder-policy-report-only": "require-corp;report-to=\"coep_report\"",
            "cross-origin-opener-policy": "unsafe-none",
            "origin-agent-cluster": "?1",
            "strict-transport-security": "max-age=15552000; preload",
            "content-type": "text/html; charset=\"utf-8\"",
            "x-fb-debug": "YUetAoFhARKRDfSIc0qZRkfB4Scm7qnnz2ouM5OMEedATGuzEUXPc4wfYqw+9IhgmOqtmEVINlyC7coICWGB1g==",
            "content-length": "0",
            "date": "Sat, 08 Aug 2026 22:52:37 GMT",
            "x-fb-connection-quality": "EXCELLENT; q=0.9, rtt=11, rtx=0, c=10, mss=1380, tbw=3579, tp=-1, tpl=-1, uplat=114, ullat=0",
            "alt-svc": "h3=\":443\"; ma=86400",
            "vary": "Accept-Encoding",
            "set-cookie": "sb=NbN3alrrrvbUepCcU7Ysca9g; expires=Sun, 12-Sep-2027 22:52:37 GMT; Max-Age=34560000; path=/; domain=.facebook.com; secure; httponly",
            "accept-ch-lifetime": "4838400",
            "accept-ch": "viewport-width,dpr,Sec-CH-Prefers-Color-Scheme,Sec-CH-UA-Full-Version-List,Sec-CH-UA-Platform-Version,Sec-CH-UA-Model",
            "content-security-policy": "default-src blob: 'self' https://*.fbsbx.com *.facebook.com *.fbcdn.net *.facebook.net *.whatsapp.com *.whatsapp.net;script-src *.facebook.com *.fbcdn.net *.facebook.net 127.0.0.1:* 'nonce-7FzxYISs' blob: 'self' connect.facebook.net 'unsafe-eval' https://accounts.google.com https://*.google-analytics.com *.google.com;style-src *.fbcdn.net data: *.facebook.com 'unsafe-inline' https://accounts.google.com https://fonts.googleapis.com;connect-src *.facebook.com facebook.com *.fbcdn.net *.facebook.net wss://*.facebook.com:* wss://*.whatsapp.com:* wss://*.fbcdn.net attachment.fbsbx.com ws://localhost:* blob: *.cdninstagram.com 'self' http://localhost:3103 wss://gateway.facebook.com wss://edge-chat.facebook.com wss://snaptu-d.facebook.com wss://kaios-d.facebook.com/ v.whatsapp.net *.fbsbx.com *.fb.com *.instagram.com *.ipification.com https://accounts.google.com https://*.google-analytics.com;font-src data: *.facebook.com *.fbcdn.net *.fbsbx.com https://fonts.gstatic.com;img-src *.fbcdn.net *.facebook.com data: https://*.fbsbx.com facebook.com *.cdninstagram.com fbsbx.com fbcdn.net connect.facebook.net blob: android-webview-video-poster: *.whatsapp.net *.fb.com *.oculuscdn.com *.tenor.co *.tenor.com *.giphy.com https://trustly.one/ https://*.trustly.one/ https://paywithmybank.com/ https://*.paywithmybank.com/ https://www.googleadservices.com https://googleads.g.doubleclick.net https://*.google-analytics.com;media-src *.cdninstagram.com blob: *.fbcdn.net *.fbsbx.com www.facebook.com *.facebook.com data: *.tenor.co *.tenor.com https://*.giphy.com;child-src data: blob: 'self' https://*.fbsbx.com *.facebook.com *.fbcdn.net;frame-src *.facebook.com *.fbsbx.com fbsbx.com data: www.instagram.com *.fbcdn.net accounts.meta.com *.accounts.meta.com *.ipification.com https://trustly.one/ https://*.trustly.one/ https://paywithmybank.com/ https://*.paywithmybank.com/ https://www.googleadservices.com https://googleads.g.doubleclick.net https://www.google.com https://td.doubleclick.net *.google.com *.doubleclick.net;manifest-src data: blob: 'self' https://*.fbsbx.com *.facebook.com *.fbcdn.net;object-src data: blob: 'self' https://*.fbsbx.com *.facebook.com *.fbcdn.net;worker-src blob: *.facebook.com data:;block-all-mixed-content;upgrade-insecure-requests;",
            "x-frame-options": "DENY",
            "document-policy": "include-js-call-stacks-in-crash-reports",
            "permissions-policy": "accelerometer=(), attribution-reporting=(self), autoplay=(), bluetooth=(), browsing-topics=(self), camera=(self \"https://www.fbsbx.com\"), ch-device-memory=(), ch-downlink=(), ch-dpr=(), ch-ect=(), ch-rtt=(), ch-save-data=(), ch-ua-arch=(), ch-ua-bitness=(), ch-viewport-height=(), ch-viewport-width=(), ch-width=(), clipboard-read=(self), clipboard-write=(self), compute-pressure=(), display-capture=(self), encrypted-media=(self), fullscreen=(self), gamepad=*, geolocation=(self), gyroscope=(), hid=(), idle-detection=(), interest-cohort=(self), keyboard-map=(), local-fonts=(), magnetometer=(), microphone=(self), midi=(), otp-credentials=(), payment=(), picture-in-picture=(self), private-state-token-issuance=(), publickey-credentials-get=(self), screen-wake-lock=(), serial=(), shared-storage=(), shared-storage-select-url=(), private-state-token-redemption=(), usb=(), unload=(self), window-management=(), xr-spatial-tracking=(self);report-to=\"permissions_policy\"",
            "cross-origin-resource-policy": "same-origin",
            "pragma": "no-cache",
            "cache-control": "private, no-cache, no-store, must-revalidate",
            "expires": "Sat, 01 Jan 2000 00:00:00 GMT",
            "x-content-type-options": "nosniff",
            "x-xss-protection": "0",
            "server-timing": "slb_crtt;dur=11,slb_srtt;dur=-1,slb_req_start;dur=1786229557768354,slb_srv_hdr_rcvd;dur=114469,slb_cli_body_rcvd_first;dur=-1,slb_cli_body_rcvd_last;dur=-1,slb_conn_lat;dur=0,slb_ssl;dur=55,slb_rule_lat;dur=0"
        },
        "security_checks": {
            "strict-transport-security": true,
            "content-security-policy": true,
            "x-content-type-options": true,
            "x-frame-options": true,
            "referrer-policy": false,
            "permissions-policy": true,
            "cross-origin-opener-policy": true,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": true
        },
        "server": "",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://www.facebook.com/",
        "title": "Facebook",
        "description": "",
        "success": true,
        "error": "",
        "status": 200
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