{
    "ok": true,
    "domain": "service.gov.uk",
    "generated_at": "2026-08-08T18:32:51-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 74,
        "label": "Fair",
        "categories": {
            "dns": 70,
            "mail": 50,
            "security": 88,
            "network": 35,
            "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": 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": "8 NS record(s); 2 or more required."
            },
            {
                "category": "dns",
                "title": "SOA record",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "Authoritative zone record."
            },
            {
                "category": "dns",
                "title": "DNSSEC chain",
                "max_points": 15,
                "earned_points": 0,
                "lost_points": 15,
                "detail": "Both DS and DNSKEY are required."
            },
            {
                "category": "dns",
                "title": "CAA policy",
                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5,
                "detail": "Certificate authority restriction."
            },
            {
                "category": "dns",
                "title": "DNS propagation",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "Agreement between public resolvers."
            },
            {
                "category": "mail",
                "title": "MX records",
                "max_points": 20,
                "earned_points": 0,
                "lost_points": 20,
                "detail": "0 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": 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": "141 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": 23,
                "lost_points": 12,
                "detail": "6 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": 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": "4 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": "8 NS record(s); 2 or more required.",
                "category": "dns",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "SOA record",
                "detail": "Authoritative zone record.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "error",
                "title": "DNSSEC chain",
                "detail": "Both DS and DNSKEY are required.",
                "category": "dns",
                "max_points": 15,
                "earned_points": 0,
                "lost_points": 15
            },
            {
                "level": "error",
                "title": "CAA policy",
                "detail": "Certificate authority restriction.",
                "category": "dns",
                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5
            },
            {
                "level": "ok",
                "title": "DNS propagation",
                "detail": "Agreement between public resolvers.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "error",
                "title": "MX records",
                "detail": "0 MX record(s).",
                "category": "mail",
                "max_points": 20,
                "earned_points": 0,
                "lost_points": 20
            },
            {
                "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": "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": "141 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": "6 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 23,
                "lost_points": 12
            },
            {
                "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": "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": [
                "151.101.128.144",
                "151.101.0.144",
                "151.101.192.144",
                "151.101.64.144"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [],
            "TXT": [
                "\"00451380\"",
                "\"00535383\"",
                "\"00801152\"",
                "\"fastly-domain-delegation-JBg47VZvrGTeGKBK-746391-2024-03-08\"",
                "\"v=spf1 -all\""
            ],
            "NS": [
                "ns-1080.awsdns-07.org.",
                "ns-cloud-e2.googledomains.com.",
                "ns-117.awsdns-14.com.",
                "ns-cloud-e4.googledomains.com.",
                "ns-cloud-e3.googledomains.com.",
                "ns-831.awsdns-39.net.",
                "ns-cloud-e1.googledomains.com.",
                "ns-1983.awsdns-55.co.uk."
            ],
            "SOA": [
                "ns-831.awsdns-39.net. awsdns-hostmaster.amazon.com. 1 21600 3600 259200 300"
            ],
            "CAA": [],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "151.101.128.144",
            "151.101.0.144",
            "151.101.192.144",
            "151.101.64.144"
        ],
        "ipv6": []
    },
    "mail": {
        "spf": "v=spf1 -all",
        "dmarc": "v=DMARC1; p=reject; sp=reject; fo=1; rua=mailto:dmarc-rua@dmarc.service.gov.uk; ruf=mailto:dmarc-ruf@dmarc.service.gov.uk",
        "dkim_selector": "x",
        "dkim_host": "",
        "dkim": "",
        "spf_analysis": {
            "valid": true,
            "lookups": 0,
            "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": [
                        "151.101.0.144",
                        "151.101.128.144",
                        "151.101.192.144",
                        "151.101.64.144"
                    ],
                    "time_ms": 61.29
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "151.101.0.144",
                        "151.101.128.144",
                        "151.101.192.144",
                        "151.101.64.144"
                    ],
                    "time_ms": 49.93
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "151.101.0.144",
                        "151.101.128.144",
                        "151.101.192.144",
                        "151.101.64.144"
                    ],
                    "time_ms": 35.5
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "151.101.0.144",
                        "151.101.128.144",
                        "151.101.192.144",
                        "151.101.64.144"
                    ],
                    "time_ms": 102.08
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "151.101.0.144",
                        "151.101.128.144",
                        "151.101.192.144",
                        "151.101.64.144"
                    ],
                    "time_ms": 59.51
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "GlobalSign nv-sa",
        "subject": "www.gov.uk",
        "valid_from": "2025-11-26T16:06:15-06:00",
        "valid_to": "2026-12-28T16:06:14-06:00",
        "days_remaining": 141,
        "san": [
            "www.gov.uk",
            "*.businesslink.gov.uk",
            "*.direct.gov.uk",
            "*.publishing.service.gov.uk",
            "*.cabinet-office.gov.uk",
            "assets.digital.cabinet-office.gov.uk",
            "service.gov.uk",
            "data.gov.uk",
            "dfid.gov.uk",
            "cabinet-office.gov.uk",
            "api.gov.uk",
            "www.data.gov.uk",
            "gov.uk"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_128_GCM_SHA256"
    },
    "http": {
        "url": "https://www.gov.uk/",
        "status": "HTTP/2 200 ",
        "http_version": "3",
        "headers": {
            "server": "nginx",
            "retry-after": "0",
            "location": "https://www.gov.uk",
            "strict-transport-security": "max-age=31536000; preload",
            "accept-ranges": "bytes",
            "date": "Sat, 08 Aug 2026 23:32:42 GMT",
            "x-varnish": "1397676620",
            "via": "1.1 router, 1.1 varnish",
            "content-length": "85482",
            "content-type": "text/html; charset=utf-8",
            "cache-control": "max-age=300, public",
            "content-security-policy": "default-src 'self'; base-uri 'none'; script-src 'self' www.google-analytics.com ssl.google-analytics.com stats.g.doubleclick.net www.googletagmanager.com www.region1.google-analytics.com region1.google-analytics.com www.google.co.uk analytics.google.com *.analytics.google.com www.google.com www.gstatic.com *.ytimg.com www.youtube.com www.youtube-nocookie.com 'nonce-VRXwOI7zJINa+4Plim8egw=='; style-src 'self' www.gstatic.com; font-src 'self'; object-src 'none'; frame-src 'self' *.publishing.service.gov.uk www.gov.uk *.dev.gov.uk www.youtube.com www.youtube-nocookie.com; frame-ancestors 'self' *.publishing.service.gov.uk www.gov.uk *.dev.gov.uk; report-uri https://csp-reporter.publishing.service.gov.uk/report; img-src 'self' *.publishing.service.gov.uk www.gov.uk *.dev.gov.uk www.google-analytics.com ssl.google-analytics.com stats.g.doubleclick.net www.googletagmanager.com www.region1.google-analytics.com region1.google-analytics.com www.google.co.uk analytics.google.com *.analytics.google.com www.google.com lux.speedcurve.com assets.digital.cabinet-office.gov.uk https://img.youtube.com https://i.ytimg.com https://api.os.uk data: https://tiles.openfreemap.org data:; connect-src 'self' *.publishing.service.gov.uk www.gov.uk *.dev.gov.uk www.google-analytics.com ssl.google-analytics.com stats.g.doubleclick.net www.googletagmanager.com www.region1.google-analytics.com region1.google-analytics.com www.google.co.uk analytics.google.com *.analytics.google.com www.google.com lux.speedcurve.com https://tiles.openfreemap.org data:",
            "etag": "W/\"1e5d323c136f86d53eb511cab3c77f0d\"",
            "link": "</assets/frontend/views/_homepage-9d119c9934de8245fa80d01f44d94b92859fa8a2f534223de9d2988dad4b74fd.css>; rel=preload; as=style; nopush,</assets/frontend/govuk_publishing_components/vendor/lux/lux-measurer-d66192b1b665d415e1874e49a48138b7ae339548aa6cdb8687c7f9933e72b969.js>; rel=preload; as=script; nopush,</assets/frontend/govuk_publishing_components/rum-custom-data-b9e1806d1da2fa8ef1855d01aa71ba5eb0afc010dd2c4de3672cc7c7a39b0c8c.js>; rel=modulepreload; as=script; nopush,</assets/frontend/govuk_publishing_components/rum-loader-a65b10e18ceeba3bd8a2eac507c7f2c513cdc82f35097df903fdea87f1dc2e33.js>; rel=preload; as=script; nopush,</assets/frontend/govuk_publishing_components/load-analytics-271e37e8217a5a334485ddacf3b89104ab3c51a15fbdba31a9f6a2c54938aa14.js>; rel=modulepreload; as=script; nopush,</assets/frontend/application-3924fa74e28e2597f5fbb9033e66ad5d9618f3373fd5cda8cc217f5ddfec259d.css>; rel=preload; as=style; nopush",
            "permissions-policy": "interest-cohort=()",
            "referrer-policy": "strict-origin-when-cross-origin",
            "x-content-type-options": "nosniff",
            "x-frame-options": "SAMEORIGIN",
            "x-permitted-cross-domain-policies": "none",
            "x-request-id": "00e333ee-b855-430e-8a1f-290b876af539",
            "x-runtime": "0.020778",
            "x-xss-protection": "0",
            "fastly-backend-name": "origin",
            "age": "0",
            "server-timing": "cacheMiss",
            "x-served-by": "cache-stl760042-STL",
            "x-cache": "MISS",
            "x-cache-hits": "0",
            "x-timer": "S1786231962.782393,VS0,VE515",
            "vary": "Accept-Encoding",
            "alt-svc": "h3=\":443\";ma=86400,h3-29=\":443\";ma=86400,h3-27=\":443\";ma=86400"
        },
        "security_checks": {
            "strict-transport-security": true,
            "content-security-policy": true,
            "x-content-type-options": true,
            "x-frame-options": true,
            "referrer-policy": true,
            "permissions-policy": true,
            "cross-origin-opener-policy": false,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": false
        },
        "server": "nginx",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://www.gov.uk/",
        "title": "Welcome to GOV.UK",
        "description": "GOV.UK - The best place to find government services and information.",
        "success": true,
        "error": "",
        "status": 206
    },
    "network": {
        "151.101.128.144": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "151.101.0.144": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "151.101.192.144": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        },
        "151.101.64.144": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "service.gov.uk",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 0.9,
                "banner": "",
                "error": "Connection refused"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 4019,
                "banner": "",
                "error": "Connection timed out"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 4020,
                "banner": "",
                "error": "Connection timed out"
            }
        ]
    },
    "visitor": {
        "ip": "216.73.217.62",
        "reverse": "",
        "country": "",
        "country_code": "",
        "region": "",
        "city": "",
        "latitude": null,
        "longitude": null,
        "isp": "",
        "organization": "",
        "asn": "",
        "timezone": "",
        "browser": "Other",
        "os": "Other",
        "language": "",
        "user_agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)",
        "is_bot": true,
        "cloudflare": false
    },
    "analysis_time_ms": 83.19
}