{
    "ok": true,
    "domain": "trb.org",
    "generated_at": "2026-08-10T06:14:41-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 67,
        "label": "Fair",
        "categories": {
            "dns": 85,
            "mail": 20,
            "security": 81,
            "network": 20,
            "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": "6 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": 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": "2 MX record(s)."
            },
            {
                "category": "mail",
                "title": "SPF",
                "max_points": 25,
                "earned_points": 0,
                "lost_points": 25,
                "detail": "SPF policy not found."
            },
            {
                "category": "mail",
                "title": "DMARC",
                "max_points": 25,
                "earned_points": 0,
                "lost_points": 25,
                "detail": "DMARC policy not found."
            },
            {
                "category": "mail",
                "title": "DKIM",
                "max_points": 20,
                "earned_points": 0,
                "lost_points": 20,
                "detail": "No tested DKIM selector responded."
            },
            {
                "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": "177 day(s) remaining."
            },
            {
                "category": "security",
                "title": "Certificate lifetime",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "Full points require at least 30 days remaining."
            },
            {
                "category": "security",
                "title": "HTTP security headers",
                "max_points": 35,
                "earned_points": 16,
                "lost_points": 19,
                "detail": "4 of 9 evaluated headers detected."
            },
            {
                "category": "network",
                "title": "PTR reverse DNS",
                "max_points": 30,
                "earned_points": 0,
                "lost_points": 30,
                "detail": "PTR not detected."
            },
            {
                "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": "6 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": "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": "2 MX record(s).",
                "category": "mail",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            },
            {
                "level": "error",
                "title": "SPF",
                "detail": "SPF policy not found.",
                "category": "mail",
                "max_points": 25,
                "earned_points": 0,
                "lost_points": 25
            },
            {
                "level": "error",
                "title": "DMARC",
                "detail": "DMARC policy not found.",
                "category": "mail",
                "max_points": 25,
                "earned_points": 0,
                "lost_points": 25
            },
            {
                "level": "error",
                "title": "DKIM",
                "detail": "No tested DKIM selector responded.",
                "category": "mail",
                "max_points": 20,
                "earned_points": 0,
                "lost_points": 20
            },
            {
                "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": "177 day(s) remaining.",
                "category": "security",
                "max_points": 55,
                "earned_points": 55,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "Certificate lifetime",
                "detail": "Full points require at least 30 days remaining.",
                "category": "security",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "warning",
                "title": "HTTP security headers",
                "detail": "4 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 16,
                "lost_points": 19
            },
            {
                "level": "error",
                "title": "PTR reverse DNS",
                "detail": "PTR not detected.",
                "category": "network",
                "max_points": 30,
                "earned_points": 0,
                "lost_points": 30
            },
            {
                "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": [
                "144.171.1.149"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
                "10 rockies.nas.edu.",
                "20 sawtooth.nas.edu."
            ],
            "TXT": [
                "\"google-site-verification=v3ggZVOYYfumlz1Hi1_GJujFw2nlgUvMq_kcCAOAAic\"",
                "\"yxtk29vgysgddywd77hgktffc5xk8s6c\"",
                "\"_47giccnty0mhw01iqtwzt9fcjakw7bj\"",
                "\"wt172t9b143t5dcjr85hcpq2czl2s3f7\"",
                "\"_duu2iy3ec1h1qg9xgjk6wyz8yfh3qlt\""
            ],
            "NS": [
                "a28-67.akam.net.",
                "a5-65.akam.net.",
                "a11-64.akam.net.",
                "a1-44.akam.net.",
                "a6-66.akam.net.",
                "a16-67.akam.net."
            ],
            "SOA": [
                "berkshire.nas.edu. hostmaster.berkshire.nas.edu. 1785557702 3600 3600 172800 360"
            ],
            "CAA": [],
            "DS": [
                "58189 8 2 39E1A8C76E32A20620FE3278FE9AE95E00CEE581922DB8D2134C3577 E411FF3C",
                "58189 8 1 250D8A4543A67FA37B89DBA6F05D45ECCDEE61BA"
            ],
            "DNSKEY": [
                "256 3 8 AwEAAcgkjpSrp+FY8JNhUIX6LojF4G5lVpP4qR6lQuVhvTUos6Qbmvck idHk02spsoOojD0RLpUqk9GiXCm43wadvfBpwDGDsEwLdZnUYPkvuKsF WYKsAoGLoIJ3c/hb9Q5RCTnij3O8eO4r+EYLaCYuw8Dx8ZJkkzxfaPLH 4U/Jf6qxru+W3bhF1ZXJ6hodR1mIwdOp+Ep2PLDPAHdvg5YiJePQjls8 EbZebrAlC41bYz7A/JHSPHRZCLBbyZfPLAQmrSUxlhG/eqV5Iqjmx8Rr TBLQ8w910Fk/xMARorQHf+cAmFlopdqtPo3+AIxos1Dqxgdpm+KXtuV7 KllSVgnXTBE=",
                "256 3 8 AwEAAdwZNLnjDWfhbkFgs7VcCX5yYQyebSCBkr4DVltmuvPOTaAlQ5L/ z4jfWrakr8/95Zpjn625CsgBrW3Tz6F8g0xNaoh2kvjn/r9RSktVCmsp YZB/ehPkEsfYNfphnitmNvaRDgDTURHpj7JiEwFtFgAld/8lKuqU5yU0 jhrD183cVWN6VWDgUZuunqEbBlDK0GHPcz92zZ8c2MFfZUdOtoXv9BSN zQGOkOGoY/BOBBbZzihAzts7YTliwqTRnAFkqSQ+9toMiHDGXcLGJWeA XonwysDzjZY4/q0ST62mppCFAeZ58t7OsYSw5lGzKDwqtiztLQ3ZnHf5 lG0gKev6yQ0=",
                "257 3 8 AwEAAaNDMKLLcmE6fkSl9TvyNeQgMXO0AgQMAjT6kozHKkC8MHvHA/i6 ov/Jsf/uvfmbg/s+4XV3vL36Ftqcy5cHSOJNyGc8iYlxIujk1OEtkPfs zaOVkaOrkToxiLCqFTu09vq/ZtAnqI5vXr99aD4CbEUIqSsLC4k4rOy9 FNbjlamsVj+qeKyVHz11KlToShgd0JeTyjF2Rf/sBqE5sgsck0bfwsZi USNwJtL7hi/VlOxSjP33176EJrbFcjdhL+6zliGcpH/Z6Zjha6/0W9S6 WhZGWTW9DokHwGbSzw7VSria3md22QM+PkvcFtIOkdCtAsVpcjpqFVTR c+Uw+FfWsyC3+u9pz3C5w6W3zeWld9nOHI5fGApsndew/Wt9h7YadICr wAc2vnMOUSQiZpFi24eWX+o8Y02/0xMILn0kP4LWMZn+T1JLAJGvX3Hc otxWeRGCXp7lPTQlD7TlocpdtqVDweR9gd2F5C1tozv57/2WLTl77Lfq n3veXRReOvmt4MEEoju9OYI6mPWyuFtuzaaViv4Y05prBmUd95012dmK VZAvZgaFjs8C4nGgBzz7ZA1Y49oWFHDrU9YxnRjOPphqMFRBgCWL1qsm 10Z2p+ch56PoVWzrJ6kjX7XDhgRGed8oEelP+MbMeVnshUiFsxu20vMg aZueCbLqvxvGhB3x",
                "256 3 8 AwEAAc0NDfWEzYL8FQrINRJuG/0zkGRL9QWM/MTtaJiVwvoq2KwFI8uv g3AfpOUtjmLOyeUMjWVKl31neG9P+T5FsYb2bD6lB7KwZuaOofeX1K5U 7GcSnNAbodNI8gnKUoHjLKtyQW+sIrS2yVaKt7VUSXdM0OmvqOA3C7Ji do1xUveDy0PXOUCQwe8mrsW8srYgDAVsy+MDLlcfC/nhT6rgeFemSRqK z4tHFJNYuNSOEbeYzC66oEN80379SKz9LiI+S3Fqp92hc0setjsiuk3d n2OrB1A4pv84JhNr4YlHV9U8dxg1lRzkfU+Z7coFhAahV0vXUiKzI5rt 4lrkvk4uBL8="
            ],
            "RRSIG": [
                "DNSKEY 8 2 360 20260831031505 20260801031505 45366 trb.org. N7HKhIjWvRt9xsIRNKzmnStE8DTgVQMT5GG9mSfs4DYbFIVNhZntgWsd oxe4ouwSZhfqliz5aBd4m5dssqnm1H7tHVxnZb4c0j05jIo9dETOlrEO rSATvCfbRcsPrTltlHUgb7Z2ljSFWJDLqANVz0BaScVdLN9jeqXoxbiH J2To5yz5R3OyIpHJI6uNcbdAopm1rugoz7bwImuNJQDqeubALf7/4QS9 YpN2q+12ISyj2EFAUHTGsFuCsdujNncBMlaHzAWSMeNz+UnnX0MikDLF W0xTa5UU4c8KgAVTR81EFq0LT6c2xIVXxt7doiZJAvQX30vadIwfXwa5 VsILPQ==",
                "DNSKEY 8 2 360 20260831031505 20260801031505 58189 trb.org. XUcyE2E+VyosgH50j2H0CdHIMTVTv8Hljuwb9J1fvdMCYLTzwmdH0pDk ykkIlyMxprt8gmnnUEw1OVeV1WECineT14Y+uTFlcoKt2E3yc5Lq13Bb k3DqplafZwSAojqD6OQzalB/CzAVKPKGi0Q+Ol+DJ7VQJtrmfoNy4anD DfQtp4Bmm7m10o/RC/mNtA1S2a+bS2Yro66ykytOKzJgImh1KVO5XrhB QK128q6GrIQTElwsG2nGHIGNk1gwKb6k7l0OXu/uM65dGTSLpX/DakqJ cDoc0ElkpBwPAkmb9qR2p04y4nrqDDMUlgsWdQzWetC+R7EtQqG26WTW +f/+mEp15QAW1mYNenZkErm24k5mYtISqfdWQ4B79K5qPsJJJyfvqaVA U3C01FnwY6S3gO3Z5xMszWFq9ggxDutw+u3FgNg6pxAhuukA570Jl6Dp FW+QqawVMpy0s3O0LofOqNGuHkU0gcTCM2UwFc1wbLSuWfZ8eC8kGwN1 xq0Vg77D0CxZaMmI2a/6d/BPKSuCTXD4QXhd1p5M3yJpwmlTwzmLDr/z 4HWvD5njKX4s2n9DLDJyKf4nmnjz/z/C+0n7VLtBw6Nkk1ID5hS/afBy L+ypi1A0/ibE5OJCWzJGfypPmotkEAF+k0cj7nOvx0oK+HDBYQhtvK8T GmDdntRYcMs=",
                "NS 8 2 360 20260831031505 20260801031505 45366 trb.org. LMHBddMxgwbi2QAsZC5KjSo0nIsaSpUA6vSLhXegjixrw9UCf/3rAuGs T4tyOmBHfQyRpJRig5ceXOu/3Itelor+x/GIaW++QASU71bOrfEDlRzC dqvO5yFM/OrrdKr1F/lLShdReI/l2E04ei57KbGf1QVAse9hfekjjdTl 3YII32gfMuU7iD1vnoGzXQ28hLsr4JLzW+YSFRPF3ZKVFPfssTmnNEYi wNeWtrAFBuvt7NAink3Ue/qLoWsjCG7c2SHoYGoOL+e5o+mtRdi6Yd/H /wUtCG6X2QtlzokVG492zPklGJQJQ0YxHv8pyu4x+3IeGyB1KSsS8r8j zGiNEg==",
                "TXT 8 2 360 20260831031505 20260801031505 45366 trb.org. SIlkc8iFnjdDnLXjbBc7tc0GfgreLZjz3Emtc3uBLY4xQB31btgQ7HGQ ue/PaisPzwj1rYglpBaXKIvZZU4TMgOu2U8wOYhH5AdvR8YRI8KqDCVW 5UUuLma5ivd3ZPRMylzG3T8URoFiMfsfL2LZ39FHw7srA9/mrfOueu/q r9PqVdGeqb9zxGpKx6WJ/6NsRYpA+diuyfWIzL9litowe5F/aihr3uZ2 HmE2Lg5uKDKHnvrfLANXGzMAesG7DmYYHbkFGEy8r2T3EuFkyqq7uqub wVp9mSKNBNrX4wqCErFDnKA/58abcaezc14Yh0bE/pbmyN9MIwfx1MHs JPltUw==",
                "A 8 2 360 20260831031505 20260801031505 45366 trb.org. C+579kZ6RuIyu49YmcONNYqKTF7ZbBfgoI/OmRlXgoT+B6BlJd+x4lHf pGdrwfGgd+g8fxI9OFyolq2gNXhbhkTycMe0G14u5AhjQQ+6AB/Y+e4a bN6SHPp2+zwkkcV/zG3jeOm5E/LINPTr/KWZZlXhotvbGBvGEw1+/J17 E81o76/eKS681C9KOtb1v0Bvh346I1UudamdbWaAdYjAiWMrKBD9QVoQ iPCMkMPZsqz0QgFnP3BNhfiKT4ME+rfl/5Es2F8kYiFujAjHsXTzM2ct 6btwWUk9YN97NxhRUukm1tWNsX1zzz05ymq8iJA3GTD5zfahHZ9HoQRt aRLOaw==",
                "DS 8 2 3600 20260830152406 20260809142406 44925 org. gMmN5iJzjblhnJQo/AHe+kEMZ5oeTJL3zn89FEMG+RjJ71lE2AZ/hYp2 u/ToRN09z7RW6mnHiLkdsc4VCyOkyousGdRQyV2Je4Pbva/TD02pWJQ9 dkWdkQCCJhnq5+cl/EEIeusrtGKnA9YrOyFBwMFPbHSnyTot2nmwuObT Zgk="
            ],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "144.171.1.149"
        ],
        "ipv6": []
    },
    "mail": {
        "spf": "",
        "dmarc": "",
        "dkim_selector": "x",
        "dkim_host": "",
        "dkim": "",
        "spf_analysis": {
            "valid": false,
            "lookups": 0,
            "final": "",
            "message": "Not published"
        },
        "dmarc_analysis": {
            "valid": false,
            "policy": ""
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "144.171.1.149"
                    ],
                    "time_ms": 61.83
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "144.171.1.149"
                    ],
                    "time_ms": 85.93
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "144.171.1.149"
                    ],
                    "time_ms": 59.98
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "144.171.1.149"
                    ],
                    "time_ms": 77.15
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "144.171.1.149"
                    ],
                    "time_ms": 472.48
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "DigiCert Inc",
        "subject": "www.trb.org",
        "valid_from": "2026-07-19T19:00:00-05:00",
        "valid_to": "2027-02-03T17:59:59-06:00",
        "days_remaining": 177,
        "san": [
            "www.trb.org",
            "trb.org",
            "cmsdev.trb.org",
            "onlinepubs.trb.org",
            "apps.trb.org",
            "naptransfer.trb.org",
            "acrpairportsolutions.org",
            "interstate.trb.org",
            "rns.trb.org"
        ],
        "protocol": "TLSv1.2",
        "cipher": "ECDHE-RSA-AES256-GCM-SHA384"
    },
    "http": {
        "url": "https://www.nationalacademies.org/units/TRB-Transporta-23-P-586",
        "status": "HTTP/1.1 200 OK",
        "http_version": "2",
        "headers": {
            "cache-control": "public, s-maxage=180, stale-if-error=86400, stale-while-revalidate=600",
            "pragma": "no-cache",
            "content-length": "366126",
            "content-type": "text/html; charset=UTF-8",
            "expires": "-1",
            "location": "https://www.nationalacademies.org/units/TRB-Transporta-23-P-586",
            "server": "BigIP",
            "x-centralpoint-server": "TRBWS03",
            "set-cookie": "CPAUDIENCEID_CDA2=5f2d099d-a0df-4e62-bb88-93662c972ae0; expires=Tue, 10-Aug-2027 11:14:40 GMT; path=/; secure; HttpOnly",
            "x-content-type-options": "nosniff",
            "x-frame-options": "SAMEORIGIN",
            "x-powered-by": "",
            "x-aspnet-version": "",
            "x-aspnetmvc-version": "",
            "date": "Mon, 10 Aug 2026 11:14:40 GMT",
            "connection": "close",
            "traceresponse": "00-18ca6d37b9e315adb1197178b5731f8d-6016ccdcb8807d19-01",
            "x-xss-protection": "1; mode=block",
            "x-debug-info": "eyJyZXRyaWVzIjowfQ==",
            "x-timer": "S1786360288.307085,VS0,VE3171",
            "via": "1.1 varnish, 1.1 varnish, 1.1 varnish",
            "x-platform-server": "i-0a5226b6b350120d4",
            "referrer-policy": "strict-origin-when-cross-origin",
            "accept-ranges": "bytes",
            "age": "190",
            "x-served-by": "cache-iad-kiad7000090-IAD, cache-iad-kiad7000090-IAD, cache-iad-kiad7000148-IAD, cache-nyc-kteb1890080-NYC",
            "x-cache": "MISS, HIT, HIT",
            "x-cache-hits": "0, 2, 1",
            "strict-transport-security": "max-age=31557600"
        },
        "security_checks": {
            "strict-transport-security": true,
            "content-security-policy": false,
            "x-content-type-options": true,
            "x-frame-options": true,
            "referrer-policy": true,
            "permissions-policy": false,
            "cross-origin-opener-policy": false,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": false
        },
        "server": "BigIP",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://www.nationalacademies.org/units/TRB-Transporta-23-P-586",
        "title": "Transportation Research Board (TRB)",
        "description": "the Transportation Research Board (TRB) mobilizes expertise, experience, and knowledge to anticipate and solve complex transportation-related challenges.",
        "success": true,
        "error": "",
        "status": 206
    },
    "network": {
        "144.171.1.149": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "rockies.nas.edu",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 12.4,
                "banner": "",
                "error": "php_network_getaddresses: getaddrinfo failed: No address associated with hostname"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 2.8,
                "banner": "",
                "error": "php_network_getaddresses: getaddrinfo failed: No address associated with hostname"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 10.2,
                "banner": "",
                "error": "php_network_getaddresses: getaddrinfo failed: No address associated with hostname"
            }
        ]
    },
    "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": 79.59
}