{
    "ok": true,
    "domain": "gpo.gov",
    "generated_at": "2026-08-08T22:09:50-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 82,
        "label": "Good",
        "categories": {
            "dns": 85,
            "mail": 90,
            "security": 84,
            "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": "2 NS record(s); 2 or more required."
            },
            {
                "category": "dns",
                "title": "SOA record",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "Authoritative zone record."
            },
            {
                "category": "dns",
                "title": "DNSSEC chain",
                "max_points": 15,
                "earned_points": 15,
                "lost_points": 0,
                "detail": "DS and DNSKEY detected."
            },
            {
                "category": "dns",
                "title": "CAA policy",
                "max_points": 5,
                "earned_points": 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": "1 MX record(s)."
            },
            {
                "category": "mail",
                "title": "SPF",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0,
                "detail": "SPF policy published."
            },
            {
                "category": "mail",
                "title": "DMARC",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0,
                "detail": "DMARC policy published."
            },
            {
                "category": "mail",
                "title": "DKIM",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "A DKIM selector was verified."
            },
            {
                "category": "mail",
                "title": "MTA-STS",
                "max_points": 5,
                "earned_points": 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": "130 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": 19,
                "lost_points": 16,
                "detail": "5 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/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": "error",
                "title": "IPv6 (AAAA)",
                "detail": "0 IPv6 address(es) detected.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 0,
                "lost_points": 10
            },
            {
                "level": "ok",
                "title": "Name server redundancy",
                "detail": "2 NS record(s); 2 or more required.",
                "category": "dns",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "SOA record",
                "detail": "Authoritative zone record.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "DNSSEC chain",
                "detail": "DS and DNSKEY detected.",
                "category": "dns",
                "max_points": 15,
                "earned_points": 15,
                "lost_points": 0
            },
            {
                "level": "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": "1 MX record(s).",
                "category": "mail",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "SPF",
                "detail": "SPF policy published.",
                "category": "mail",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "DMARC",
                "detail": "DMARC policy published.",
                "category": "mail",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "DKIM",
                "detail": "A DKIM selector was verified.",
                "category": "mail",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            },
            {
                "level": "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": "130 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": "5 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 19,
                "lost_points": 16
            },
            {
                "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/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": [
                "162.140.14.82"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
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            ],
            "TXT": [
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                "\"google-site-verification=x9XWRvd7M4WwMKAnRdWtWJxv9SgzmKWpnQiTENZi8Lk\"",
                "\"sswc98trfnq947h6n2qxy0c8b4jtx16w\"",
                "\"domain-verification=aLPKF3YqCvyYoIS2k7qb7b2yRaPLU_HIar_rQCiN-OE\"",
                "\"e8WTiTGmBS/5MCn4qp7AW4LAs2em2qIm/uuHvmohKPPP2ZtDr2v84+17NJ4txIiFyMo9KtIJoNkYKpj1tGY5MA==\"",
                "\"mfbf4rwc5jtnw7wl7g6psmmkvt4jq0xb\"",
                "\"adobe-idp-site-verification=ed70e46b8095ce3defd8cb71aee5597983f4c9c9d67ed30f18b74f4abcb09ab4\"",
                "\"83lgxldchk5t2k83vkpb41tpvnl2p334\"",
                "\"apple-domain-verification=5Ad1n20NuPa7cxbN\"",
                "\"docker-verification=3c6296f4-c9d6-413d-95b3-1ed8783bc2d3\"",
                "\"3ppq0glzx9jqptqm2vjr9408rrbj3bn4\"",
                "\"v=spf1 ip4:18.224.245.68 ip4:162.140.252.206/31 ip4:162.140.64.208 ip4:52.15.36.4 ip4:162.140.254.17 ip4:149.72.255.63 ip4:54.240.65.177 ip4:50.209.159.117 ip4:52.251.53.57 ip4:149.72.240.220 ip4:162.140.252.10 ip4:162.140.67.10 ip4:174.129.192.189 includ\" \"e:everbridge.net include:spf.protection.outlook.com include:rnmk.com include:rp.oracleemaildelivery.com -all\""
            ],
            "NS": [
                "ns2.gpo.gov.",
                "ns1.gpo.gov."
            ],
            "SOA": [
                "ns1.gpo.gov. dns.cloudflare.com. 2411619083 10000 2400 604800 1800"
            ],
            "CAA": [],
            "DS": [
                "2371 13 2 633CA88EA8526550AFFDF84C3AC9E623DE1798525D62F7966DD339DB D4EEF82C"
            ],
            "DNSKEY": [
                "257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+ KkxLbxILfDLUT0rAK9iUzy1L53eKGQ==",
                "256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8 KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA=="
            ],
            "RRSIG": [
                "NS 13 2 86400 20260810040940 20260808020940 34505 gpo.gov. jr9NZlqa+BDih9gL/d9agZooGmqfli9G7rwdAj+gFyVLQbQpeNGE4SgK nKeAjRrvzy5Vg0r7Si1iyY/BZX2DNg==",
                "TXT 13 2 300 20260810040940 20260808020940 34505 gpo.gov. fXignS1rtOwbwmtKMUjU2AOMF/EgNDWrYPiBJgMZnBBUEnHXSEasEcov pB8gHCqR03bg6ZCfYACYTUN0tRDjJQ==",
                "MX 13 2 300 20260810040940 20260808020940 34505 gpo.gov. BToKovAVx5UnEho6Q1NQJKqeb4D7KAchOFvXk++8KijiDjZMDMMm/f1v UCDpHGFxp/fZ6jvZD0Z5k7bjdqrgUg==",
                "DS 13 2 3600 20260810040940 20260808020940 35496 gov. c0UzyCY59yiUIMLP6uUDzzYkiLWLee5hT5E3kBjw5KamyIUGLjIVZpcz oxR4VO/hnadmQ8HwA57Xc21pnz+Kxg=="
            ],
            "NSEC": [
                "\\000.gpo.gov. A NS SOA PTR HINFO MX TXT AAAA LOC SRV NAPTR CERT SSHFP RRSIG NSEC DNSKEY TLSA SMIMEA HIP CDS CDNSKEY OPENPGPKEY SVCB HTTPS URI CAA"
            ],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "162.140.14.82"
        ],
        "ipv6": []
    },
    "mail": {
        "spf": "v=spf1 ip4:18.224.245.68 ip4:162.140.252.206/31 ip4:162.140.64.208 ip4:52.15.36.4 ip4:162.140.254.17 ip4:149.72.255.63 ip4:54.240.65.177 ip4:50.209.159.117 ip4:52.251.53.57 ip4:149.72.240.220 ip4:162.140.252.10 ip4:162.140.67.10 ip4:174.129.192.189 include:everbridge.net include:spf.protection.outlook.com include:rnmk.com include:rp.oracleemaildelivery.com -all",
        "dmarc": "v=DMARC1; p=reject; fo=1; pct=100; ri=3600; rua=mailto:government-publishing-office@rua.agari.com; ruf=mailto:government-publishing-office@ruf.agari.com",
        "dkim_selector": "selector2",
        "dkim_host": "selector2._domainkey.gpo.gov",
        "dkim": "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCThP5hYyVr+KC8OAxidgDJYeBcNRTy/Fl+V9WA8ee7KUSdxeIvSiZtga0wLF2RWhJIMDGLTf6pISMuxiGJu/Nk6Xx7viCAaCrCpR8uVxBamf2LSTIdOAEjLLwrFc7RklmfIxBZeRIK1qp98Jr5YBIPyf6uXkXeNbhJF2TGm6F9TwIDAQAB;",
        "spf_analysis": {
            "valid": true,
            "lookups": 4,
            "final": "-all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "reject"
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "162.140.14.82"
                    ],
                    "time_ms": 54.76
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "162.140.14.82"
                    ],
                    "time_ms": 20.42
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "162.140.14.82"
                    ],
                    "time_ms": 64.43
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "162.140.14.82"
                    ],
                    "time_ms": 43.58
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "162.140.14.82"
                    ],
                    "time_ms": 54.67
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "DigiCert Inc",
        "subject": "www.gpo.gov",
        "valid_from": "2026-06-01T19:00:00-05:00",
        "valid_to": "2026-12-17T17:59:59-06:00",
        "days_remaining": 130,
        "san": [
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            "govinfo.gov",
            "www.govinfo.gov",
            "gpo.gov",
            "m.gpo.gov",
            "fdsys.gov",
            "www.fdsys.gov",
            "api.fdsys.gov",
            "congressionalrecord.gov",
            "www.congressionalrecord.gov",
            "presidentialdocuments.gov",
            "www.presidentialdocuments.gov",
            "congressionaldirectory.gov",
            "www.congressionaldirectory.gov",
            "housecalendar.gov",
            "www.housecalendar.gov",
            "senatecalendar.gov",
            "www.senatecalendar.gov",
            "uscode.gov",
            "www.uscode.gov",
            "frwebgate.access.gpo.gov",
            "edocket.access.gpo.gov",
            "legacy-gpo.govinfo.gov"
        ],
        "protocol": "TLSv1.2",
        "cipher": "ECDHE-RSA-AES128-GCM-SHA256"
    },
    "http": {
        "url": "https://www.gpo.gov/",
        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
            "location": "https://www.gpo.gov/",
            "server": "cloudflare",
            "connection": "Keep-Alive",
            "content-length": "0",
            "date": "Sun, 09 Aug 2026 03:09:41 GMT",
            "content-type": "text/html; charset=utf-8",
            "cache-control": "private, max-age=60",
            "expires": "Sun, 09 Aug 2026 03:10:36 GMT",
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