{
    "ok": true,
    "domain": "lancaster.ac.uk",
    "generated_at": "2026-08-09T09:37:46-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 86,
        "label": "Good",
        "categories": {
            "dns": 95,
            "mail": 70,
            "security": 77,
            "network": 85,
            "availability": 100
        },
        "category_weights": {
            "dns": 25,
            "mail": 20,
            "security": 25,
            "network": 10,
            "availability": 20
        },
        "items": [
            {
                "category": "dns",
                "title": "IPv4 (A)",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0,
                "detail": "1 IPv4 address(es) detected."
            },
            {
                "category": "dns",
                "title": "IPv6 (AAAA)",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "1 IPv6 address(es) detected."
            },
            {
                "category": "dns",
                "title": "Name server redundancy",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "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": "4 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": "85 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": 30,
                "lost_points": 0,
                "detail": "PTR: www.lancs.ac.uk"
            },
            {
                "category": "network",
                "title": "IPv4 diversity",
                "max_points": 35,
                "earned_points": 20,
                "lost_points": 15,
                "detail": "Two or more IPv4 addresses receive full points."
            },
            {
                "category": "network",
                "title": "IPv6 connectivity",
                "max_points": 35,
                "earned_points": 35,
                "lost_points": 0,
                "detail": "AAAA availability."
            },
            {
                "category": "availability",
                "title": "DNS resolution",
                "max_points": 40,
                "earned_points": 40,
                "lost_points": 0,
                "detail": "At least one address family must resolve."
            },
            {
                "category": "availability",
                "title": "HTTP response",
                "max_points": 40,
                "earned_points": 40,
                "lost_points": 0,
                "detail": "HTTP/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": "ok",
                "title": "IPv6 (AAAA)",
                "detail": "1 IPv6 address(es) detected.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "Name server redundancy",
                "detail": "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": "4 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": "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": "85 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": "ok",
                "title": "PTR reverse DNS",
                "detail": "PTR: www.lancs.ac.uk",
                "category": "network",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0
            },
            {
                "level": "warning",
                "title": "IPv4 diversity",
                "detail": "Two or more IPv4 addresses receive full points.",
                "category": "network",
                "max_points": 35,
                "earned_points": 20,
                "lost_points": 15
            },
            {
                "level": "ok",
                "title": "IPv6 connectivity",
                "detail": "AAAA availability.",
                "category": "network",
                "max_points": 35,
                "earned_points": 35,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "DNS resolution",
                "detail": "At least one address family must resolve.",
                "category": "availability",
                "max_points": 40,
                "earned_points": 40,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "HTTP response",
                "detail": "HTTP/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": [
                "148.88.65.80"
            ],
            "AAAA": [
                "2001:630:80:2ff::80:1"
            ],
            "CNAME": [],
            "MX": [
                "10 mh-fa-0.lancs.ac.uk.",
                "20 mh-is-1.lancs.ac.uk.",
                "10 mh-is-0.lancs.ac.uk.",
                "20 mh-fa-1.lancs.ac.uk."
            ],
            "TXT": [
                "\"v=spf1 ip4:148.88.65.128/28 ip4:148.88.82.55 include:spf.protection.outlook.com ?all\""
            ],
            "NS": [
                "ns3.ja.net.",
                "ns2.mythic-beasts.com.",
                "ns1.lancs.ac.uk.",
                "ns3.lancs.ac.uk.",
                "ns2.lancs.ac.uk.",
                "ns1.mythic-beasts.com."
            ],
            "SOA": [
                "ns1.lancs.ac.uk. hostmaster.lancaster.ac.uk. 1786242694 21600 3600 604800 900"
            ],
            "CAA": [],
            "DS": [
                "4472 15 2 83F40F220D964DB68543EE9F2A286D107EE6C7CD8B8CF47D6DFEF353 4327BB2D"
            ],
            "DNSKEY": [
                "257 3 15 BrNpmJXpLnfIufiEtMTmsehtQ4/pyDv0D7tYNJyQJcw="
            ],
            "RRSIG": [
                "NS 15 3 43200 20260830014930 20260809013134 4472 lancaster.ac.uk. rNmrFKbje52Wm9U1OOgOVg4INxWfY7KhKu4oByoZ7Sq0XC4A/uBeGQ+S WmWPZldUio09Vt0Bebyry7twylU/Cg==",
                "A 15 3 3600 20260819111230 20260729110003 4472 lancaster.ac.uk. MtHmHQo2Q238xHKmSPJo6hjE8XFkluroayzEBw90n4daH74VIslT1HVh 9E4l9AEHALetzUgnHf9FIU5up0u+Bw==",
                "DNAME 15 3 43200 20260819111230 20260729110003 4472 lancaster.ac.uk. Z50civtmzIFZlFGVFwRnBylE8z1HsqXzF0kz3+vMnD4f/HaPP7moMar8 nI2d2khq2+55e2yZeqOREpAIGUj4CQ==",
                "MX 15 3 3600 20260819111230 20260729110003 4472 lancaster.ac.uk. qfErUvtgJgsZlWX+xQ+5uZkUaSeTJc1GBMGjy4CmaxABNiQ8bsLohHy0 CVeQ1d67d462rH/wvj1F/ihXdO9DDw==",
                "NAPTR 15 3 3600 20260819111230 20260729110003 4472 lancaster.ac.uk. 1p8RSo3b/KIwvMxKmmglyjsP90ff0ex7Df5iWFL8ilt5FHZhl1KW4aSO V9FuytBdvTBH+nn6sshX9nK81QoUDg==",
                "TXT 15 3 3600 20260828220030 20260807213606 4472 lancaster.ac.uk. zLFe3cyfhl3aQBZy4yHi7u+Kn2kQalZ6EEjxZacFuAQdRT8nFDCkPo5q RpYoM8/vNEoE/Ib/vwh6RBYlCGQmCA==",
                "SOA 15 3 3600 20260830023134 20260809013134 4472 lancaster.ac.uk. LhUSCRvptipkZBrKiRW1iMMHccYgq4XoRJpECZU0ixHf6yhN1MApCxyH D92+WG0NnLwVONMfS57f91HK+k3HDQ==",
                "DNSKEY 15 3 43200 20260824212829 20260803210606 4472 lancaster.ac.uk. UoHq7toBuLjgWPR06/LTk4o2UsaZplwL4Cg7SeGLXLQvtDqtdxBoMpD8 7phQGrx7MM6U/sb88GehJt8wI2FMCg==",
                "AAAA 15 3 3600 20260819111230 20260729110003 4472 lancaster.ac.uk. mDwQWSrZyd9StHYP2y4zmDLe5ID0MEDnTeBu/NW1VusyXihiwj/6I2Hn Mfa6ye2KXdHpTGMbutYG8q3bu7GAAA==",
                "DS 8 3 3600 20260818144439 20260719131439 7336 ac.uk. NWzWTrpDDI+dCmTVYM60wKVt3xytbGWJ4rkSsv4MEml6BLkMBVwgew6Z tNSlH5auOpXOU5aPKKtEgyi2rhzVKvkKshVnrJp9v+5zJ+NJGUTdGbzH x4nKJbYXkCa3CXqT2mFnygC6n5zlem5uM1oEDSASOy+clXm8+B3oVI1W pqU=",
                "TYPE65534 15 3 0 20260824063532 20260803062942 4472 lancaster.ac.uk. 3ecZnK9bpd7eChUWMyeV5C21C+vyIrsPEUBPLYG9s0ozwUyfa375sOKX gbFOaj8VVC+LXY0xSOoHHdEECrNVAw==",
                "NSEC3PARAM 15 3 0 20260819111230 20260729110003 4472 lancaster.ac.uk. DQrUazGCA9IanAYQLRoMpHTFcM79fo4+50/5KGbdG0JMqnggcQNQcISY XfMWkrTftVpdHtGXFK0sru3qt6XbAQ==",
                "HINFO 15 3 60 20260830014930 20260809013134 4472 lancaster.ac.uk. 1BSrJggNFblc0Zvd7BvGNjR93md6O7eVfEtAVzlK/yH/9lY6hZj5vcRR M62f4Sb45Wardf/hwAYakm30fHqFAQ==",
                "CDS 15 3 43200 20260824212829 20260803210606 4472 lancaster.ac.uk. YbkKoGqvxP+yct+bv96Hz9Cj56Wh8c3RmHELAfL7r8386t9nQpKIfvXp W9saKAF0OMgUxsOR2adbelgiHTN8Ag==",
                "CDNSKEY 15 3 43200 20260824212829 20260803210606 4472 lancaster.ac.uk. UMGrAKTNADxWRBDYjBOOoe43uMf3SqrPcp0t524JTmPa4VNSuy7x7R+m dhASPcERuaVI5XctP8/vblgCaPXTAA=="
            ],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [
                "100 10 \"s\" \"x-eduroam:radius.tls\" \"\" _radsec._tcp.roaming.ja.net."
            ],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "148.88.65.80"
        ],
        "ipv6": [
            "2001:630:80:2ff::80:1"
        ]
    },
    "mail": {
        "spf": "v=spf1 ip4:148.88.65.128/28 ip4:148.88.82.55 include:spf.protection.outlook.com ?all",
        "dmarc": "v=DMARC1; p=none; rua=mailto:dmarc-reports@lancaster.ac.uk; ruf=mailto:dmarc-reports@lancaster.ac.uk",
        "dkim_selector": "x",
        "dkim_host": "",
        "dkim": "",
        "spf_analysis": {
            "valid": true,
            "lookups": 1,
            "final": "?all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "none"
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "www.lancs.ac.uk",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "148.88.65.80"
                    ],
                    "time_ms": 62.1
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "148.88.65.80"
                    ],
                    "time_ms": 155.15
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "148.88.65.80"
                    ],
                    "time_ms": 365.58
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "148.88.65.80"
                    ],
                    "time_ms": 193.33
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "148.88.65.80"
                    ],
                    "time_ms": 432.6
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "Let's Encrypt",
        "subject": "www.lancaster.ac.uk",
        "valid_from": "2026-08-05T08:11:38-05:00",
        "valid_to": "2026-11-03T07:11:37-06:00",
        "days_remaining": 85,
        "san": [
            "lancaster.ac.uk",
            "lancs.ac.uk",
            "www.lancaster.ac.uk",
            "www.lancs.ac.uk"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_256_GCM_SHA384"
    },
    "http": {
        "url": "https://www.lancaster.ac.uk/",
        "status": "HTTP/1.1 200 OK",
        "http_version": "2",
        "headers": {
            "date": "Sun, 09 Aug 2026 14:37:44 GMT",
            "server": "Apache",
            "location": "https://www.lancaster.ac.uk/",
            "content-type": "text/html; charset=UTF-8",
            "permissions-policy": "interest-cohort=()",
            "x-frame-options": "DENY",
            "vary": "User-Agent",
            "strict-transport-security": "max-age=3600"
        },
        "security_checks": {
            "strict-transport-security": true,
            "content-security-policy": false,
            "x-content-type-options": false,
            "x-frame-options": true,
            "referrer-policy": false,
            "permissions-policy": true,
            "cross-origin-opener-policy": false,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": false
        },
        "server": "Apache",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://www.lancaster.ac.uk/",
        "title": "Home - Lancaster University",
        "description": "Lancaster University is among the best in the UK. A top 10 UK university, we are also highly ranked in international league tables such as the QS World Rankings.",
        "success": true,
        "error": "",
        "status": 206
    },
    "network": {
        "148.88.65.80": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "mh-fa-0.lancs.ac.uk",
        "ports": [
            {
                "port": 25,
                "open": false,
                "time_ms": 24.3,
                "banner": "",
                "error": "Connection refused"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 124,
                "banner": "",
                "error": "Connection refused"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 100.4,
                "banner": "",
                "error": "Connection refused"
            }
        ]
    },
    "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": 130.82
}