{
    "ok": true,
    "domain": "kayak.com",
    "generated_at": "2026-08-09T01:30:30-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 85,
        "label": "Good",
        "categories": {
            "dns": 85,
            "mail": 90,
            "security": 77,
            "network": 70,
            "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": "4 IPv4 address(es) detected."
            },
            {
                "category": "dns",
                "title": "IPv6 (AAAA)",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "4 IPv6 address(es) detected."
            },
            {
                "category": "dns",
                "title": "Name server redundancy",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "3 NS record(s); 2 or more required."
            },
            {
                "category": "dns",
                "title": "SOA record",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "Authoritative zone record."
            },
            {
                "category": "dns",
                "title": "DNSSEC chain",
                "max_points": 15,
                "earned_points": 0,
                "lost_points": 15,
                "detail": "Both DS and DNSKEY are required."
            },
            {
                "category": "dns",
                "title": "CAA policy",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0,
                "detail": "Certificate authority restriction."
            },
            {
                "category": "dns",
                "title": "DNS propagation",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "Agreement between public resolvers."
            },
            {
                "category": "mail",
                "title": "MX records",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "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": "50 day(s) remaining."
            },
            {
                "category": "security",
                "title": "Certificate lifetime",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "Full points require at least 30 days remaining."
            },
            {
                "category": "security",
                "title": "HTTP security headers",
                "max_points": 35,
                "earned_points": 12,
                "lost_points": 23,
                "detail": "3 of 9 evaluated headers detected."
            },
            {
                "category": "network",
                "title": "PTR reverse DNS",
                "max_points": 30,
                "earned_points": 0,
                "lost_points": 30,
                "detail": "PTR not detected."
            },
            {
                "category": "network",
                "title": "IPv4 diversity",
                "max_points": 35,
                "earned_points": 35,
                "lost_points": 0,
                "detail": "Two or more IPv4 addresses receive full points."
            },
            {
                "category": "network",
                "title": "IPv6 connectivity",
                "max_points": 35,
                "earned_points": 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": "4 IPv4 address(es) detected.",
                "category": "dns",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "IPv6 (AAAA)",
                "detail": "4 IPv6 address(es) detected.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "Name server redundancy",
                "detail": "3 NS record(s); 2 or more required.",
                "category": "dns",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "SOA record",
                "detail": "Authoritative zone record.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "error",
                "title": "DNSSEC chain",
                "detail": "Both DS and DNSKEY are required.",
                "category": "dns",
                "max_points": 15,
                "earned_points": 0,
                "lost_points": 15
            },
            {
                "level": "ok",
                "title": "CAA policy",
                "detail": "Certificate authority restriction.",
                "category": "dns",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "DNS propagation",
                "detail": "Agreement between public resolvers.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "MX records",
                "detail": "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": "50 day(s) remaining.",
                "category": "security",
                "max_points": 55,
                "earned_points": 55,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "Certificate lifetime",
                "detail": "Full points require at least 30 days remaining.",
                "category": "security",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "warning",
                "title": "HTTP security headers",
                "detail": "3 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 12,
                "lost_points": 23
            },
            {
                "level": "error",
                "title": "PTR reverse DNS",
                "detail": "PTR not detected.",
                "category": "network",
                "max_points": 30,
                "earned_points": 0,
                "lost_points": 30
            },
            {
                "level": "ok",
                "title": "IPv4 diversity",
                "detail": "Two or more IPv4 addresses receive full points.",
                "category": "network",
                "max_points": 35,
                "earned_points": 35,
                "lost_points": 0
            },
            {
                "level": "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": [
                "151.101.65.29",
                "151.101.1.29",
                "151.101.129.29",
                "151.101.193.29"
            ],
            "AAAA": [
                "2a04:4e42:200::285",
                "2a04:4e42:600::285",
                "2a04:4e42::285",
                "2a04:4e42:400::285"
            ],
            "CNAME": [],
            "MX": [
                "10 mxa-009e5101.gslb.pphosted.com.",
                "10 mxb-009e5101.gslb.pphosted.com."
            ],
            "TXT": [
                "\"docker-verification=38689d18-8405-471e-8c40-0f79329477db\"",
                "\"stripe-verification=c6ba89f5464c6bfe6ee74b5e0b09d8f67bca1ba9d28ffb7c4d51067344241bbe\"",
                "\"stripe-verification=0541ddd99d259a6b83784688d152e53689b3c7b62ab2a94c1af4881d8c325667\"",
                "\"v=spf1 include:_spf.psm.knowbe4.com include:mail.zendesk.com include:_spf.presscloud.com include:helpscoutemail.com include:kayak.com._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all\"",
                "\"stripe-verification=6fc06b28a4dce12135cfc982ee67b4f50ecdf24931633f46ed324b939e2d132c\"",
                "\"stripe-verification=6bb69f06400ffd81c173e80ece77f9cb903fd23583d37619628834425c8e0335\"",
                "\"anthropic-domain-verification-ssadh3=5QlR12RKrK6yot7p3HMOdRp65\"",
                "\"apple-domain-verification=y2Igt0Wg-UHV70fp8FwwAY0lXT7yuhgjH7LQCBWWn3k\"",
                "\"cursor-domain-verification-eerey1=DeRjeVboCFaoJnWyaHOvbIMSV\"",
                "\"google-site-verification=Ne2Q3MQtiFamXAbgdT27mGRHEP1uH6u0S3hxE8oEIUg\"",
                "\"google-site-verification=U_6jqgvCpjeeNLZEUNq4kW-yF4KXPrcUUifhpyjlJyQ\"",
                "\"openai-domain-verification=dv-d02WfHAbY79UMiEztHNqRWoE\"",
                "\"meltwater_sso_20220613_TRITON-9222\"",
                "\"atlassian-sending-domain-verification=ee4a120b-7262-4e68-b208-f80801824d31\"",
                "\"cisco-ci-domain-verification=20500cc295a110d0573b2bdc2093ab09b58730d8f8b963895b6a3133a368cb25\"",
                "\"_globalsign-domain-verification=p1fktqCHnOA1sE262wg61RlM1M1TddxeBhTTQfKOf-\"",
                "\"onetrust-domain-verification=91fa27999c43422991e04989039fab48\"",
                "\"onetrust-domain-verification=1d14495f61ec44ddb84c7e861332306b\"",
                "\"docusign=401274e0-a81e-4f1e-9379-3d0cb24b0646\"",
                "\"google-site-verification=EMk53mZVKZzMKDvuxN7Izz5SrGePcS6YL9UU-O5p3Cw\"",
                "\"mgverify=19b8eb35bd233256b9c7b140bd3739975015fc9e05f760bf919fe5999bd01f0f\"",
                "\"docusign=d717820e-c9d2-4c7f-8673-c52c7533107e\"",
                "\"google-site-verification=RkXPYTo0sfAReK2PL4rFLzDvF69y68je5By3mbLYtTI\"",
                "\"google-site-verification=atbvv5AjB8MGJiGm0kJQicx405wRnH3IXkvhmevhlWs\"",
                "\"google-site-verification=7Swb0dHV4cMeHcGWVdFuKZYVA6rhwGfDU0scbwz22-c\"",
                "\"google-site-verification=w24oU5jGpVa8SU1Tznbo4CU8_m_WL6o-yDo0gosSBKY\"",
                "\"loom-site-verification=cf88c3547adb422198e2effdcbc1822c\"",
                "\"MS=ms32183003\"",
                "\"notion-domain-verification=ulKLX952hySY2ToVspcw3nuYFf7ANxdT5aOZR2JpUby\"",
                "\"airtable-verification=ab2905fae08cc438965f22077ffe0917\"",
                "\"linear-domain-verification=5h25z4iybzed\"",
                "\"stripe-verification=87f88a3ae169a524f546ed203d0cb22535e7f0e722a5004814cb828d3d1b342f\"",
                "\"stripe-verification=a3cd1e5407820ba2f4e9df948ed7871a2303c8488c66b781302677cccd05fde0\"",
                "\"adobe-idp-site-verification=e3698045df155e7f8cf3b02c00c51c334c988ed32d2c35abf118b5455559d0fb\"",
                "\"stripe-verification=36a8ae673d2824b08508d33f51fbd183a78e598178cf455b3941b48b1ed1848c\"",
                "\"teamviewer-sso-verification=f75e9fa8bd764fe28cfd406ac0863d88\"",
                "\"stripe-verification=7ce9b2bea1ac18f9f8081a240f771d3d36e6177de24d42e48b3c8f7fd5b0ba47\"",
                "\"jamf-site-verification=0aiX3pBSM2fa-OoV_DbSDg\"",
                "\"atlassian-domain-verification=B1e9uqeJyMnx/b8qh19lhS2HmbMwe7iMsn3YJUdW1FrMfjT5ZIZIApoe6mckiqGv\"",
                "\"smartsheet-site-validation=VnoFFHldpjUduBdwSfSrHI1U3dlbsp4P\"",
                "\"docusign=b94148f1-8103-446e-be3c-c780204b2b73\"",
                "\"google-site-verification=hR-vohAQxRsRyvUskvHc58Ebvc4yVW7FXc7pyRzIdz4\"",
                "\"docusign=32480aaa-d033-46e8-8295-f0a0a1a7a5dc\"",
                "\"openai-domain-verification=08273489\"",
                "\"onetrust-domain-verification=5785b70b49c94d87b375b04a26cb9a99\""
            ],
            "NS": [
                "blue.foundationdns.net.",
                "blue.foundationdns.com.",
                "blue.foundationdns.org."
            ],
            "SOA": [
                "blue.foundationdns.com. dns.cloudflare.com. 2411547110 10000 2400 604800 1800"
            ],
            "CAA": [
                "0 issue \"digicert.com; cansignhttpexchanges=yes\"",
                "0 issuewild \"amazon.com\"",
                "0 issue \"letsencrypt.org\"",
                "0 issuewild \"ssl.com\"",
                "0 issuewild \"digicert.com; cansignhttpexchanges=yes\"",
                "0 issue \"pki.goog; cansignhttpexchanges=yes\"",
                "0 iodef \"mailto:ops@kayak.com\"",
                "0 issue \"globalsign.com\"",
                "0 issuewild \"pki.goog; cansignhttpexchanges=yes\"",
                "0 issue \"ssl.com\"",
                "0 issue \"comodoca.com\"",
                "0 issue \"awstrust.com\"",
                "0 issuewild \"letsencrypt.org\"",
                "0 issuewild \"comodoca.com\""
            ],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "151.101.65.29",
            "151.101.1.29",
            "151.101.129.29",
            "151.101.193.29"
        ],
        "ipv6": [
            "2a04:4e42:200::285",
            "2a04:4e42:600::285",
            "2a04:4e42::285",
            "2a04:4e42:400::285"
        ]
    },
    "mail": {
        "spf": "v=spf1 include:_spf.psm.knowbe4.com include:mail.zendesk.com include:_spf.presscloud.com include:helpscoutemail.com include:kayak.com._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all",
        "dmarc": "v=DMARC1; p=reject; pct=100; adkim=r; aspf=r; rua=mailto:dmarc_agg@vali.email",
        "dkim_selector": "google",
        "dkim_host": "google._domainkey.kayak.com",
        "dkim": "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDWuUuD6OJIvN9lweAU6bzfFmGVBfUwd1eu3VSjtWMCPbnfTnj1zDTxsGVNqTv1a6nGgLC8+tuDerc2nfpiK4sTqgotz9EdUOgkQebB88At++QJ+0RHPwvmY3S79Te48FR+SMC72mToJwqiU6fgmfrgXqNBL+We4Q0bCnR1d4Yl/wIDAQAB",
        "spf_analysis": {
            "valid": true,
            "lookups": 6,
            "final": "~all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "reject"
        },
        "bimi": "v=BIMI1; l=https://amplify.valimail.com/bimi/kayak/OQPx5pfa2nG-kayak_software_corporation_1551936114.svg; a=https://amplify.valimail.com/bimi/kayak/OQPx5pfa2nG-kayak_software_corporation_1551936114.pem",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "151.101.1.29",
                        "151.101.129.29",
                        "151.101.193.29",
                        "151.101.65.29"
                    ],
                    "time_ms": 47.3
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "151.101.1.29",
                        "151.101.129.29",
                        "151.101.193.29",
                        "151.101.65.29"
                    ],
                    "time_ms": 19.27
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "151.101.1.29",
                        "151.101.129.29",
                        "151.101.193.29",
                        "151.101.65.29"
                    ],
                    "time_ms": 36.57
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "151.101.1.29",
                        "151.101.129.29",
                        "151.101.193.29",
                        "151.101.65.29"
                    ],
                    "time_ms": 32.15
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "151.101.1.29",
                        "151.101.129.29",
                        "151.101.193.29",
                        "151.101.65.29"
                    ],
                    "time_ms": 50.17
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "Let's Encrypt",
        "subject": "kayak.com",
        "valid_from": "2026-06-30T11:48:20-05:00",
        "valid_to": "2026-09-28T11:48:19-05:00",
        "days_remaining": 50,
        "san": [
            "kayak.com"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_128_GCM_SHA256"
    },
    "http": {
        "url": "https://www.kayak.com/",
        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
            "server": "KAYAK/1.0",
            "retry-after": "0",
            "location": "https://www.kayak.com/",
            "content-type": "text/html;charset=UTF-8",
            "accept-ranges": "bytes",
            "date": "Sun, 09 Aug 2026 06:30:29 GMT",
            "via": "1.1 varnish",
            "x-served-by": "r9, cache-stl760068-STL, cache-stl760068-STL",
            "x-cache": "MISS, MISS",
            "x-cache-hits": "0, 0",
            "content-length": "443",
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