{
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    "domain": "ul.pt",
    "generated_at": "2026-08-10T12:27:16-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 71,
        "label": "Fair",
        "categories": {
            "dns": 90,
            "mail": 45,
            "security": 69,
            "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": 5,
                "lost_points": 0,
                "detail": "Certificate authority restriction."
            },
            {
                "category": "dns",
                "title": "DNS propagation",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0,
                "detail": "Agreement between public resolvers."
            },
            {
                "category": "mail",
                "title": "MX records",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "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": 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": "180 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": 4,
                "lost_points": 31,
                "detail": "1 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": "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": "ok",
                "title": "CAA policy",
                "detail": "Certificate authority restriction.",
                "category": "dns",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "DNS propagation",
                "detail": "Agreement between public resolvers.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 10,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "MX records",
                "detail": "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": "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": "180 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": "1 of 9 evaluated headers detected.",
                "category": "security",
                "max_points": 35,
                "earned_points": 4,
                "lost_points": 31
            },
            {
                "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": {
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            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
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                "50 mx21.ulisboa.pt.",
                "50 mx24.ulisboa.pt.",
                "50 mx23.ulisboa.pt."
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            "TXT": [
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                "\"v=spf1 mx a:mx21.ulisboa.pt a:mx22.ulisboa.pt a:mx23.ulisboa.pt a:mx24.ulisboa.pt a:ul-listsrv05.ul.pt ip4:194.117.2.9 ip4:194.117.3.12 -all\"",
                "\"google-site-verification=_41KiqxMo5DDhiQX6_-N97l0_xfhffodhVoyi4MW8zk\""
            ],
            "NS": [
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                "b.ul.pt."
            ],
            "SOA": [
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            ],
            "CAA": [
                "0 issue \"letsencrypt.org\"",
                "0 iodef \"mailto:sistemas.di@reitoria.ulisboa.pt\"",
                "0 issue \"harica.gr\""
            ],
            "DS": [
                "63706 5 2 24F08E53694E5C4F18CBD6DD03061F6D05B581E547CE15300257411A C71D3787"
            ],
            "DNSKEY": [
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                "256 3 5 AwEAAcOjAWvYgocu9ElH8h4oZHRuc2F80qwyjeQkfWA/fTCDHguUMQ/B gtvgkQv7pZHKKeOATuM+oeBYJaKWpwA4YkiqeL7EZgFQy9w37Jm+90FH WcHDFwSmsSxYhgAKssR2cDnHoiNiHWcyvI9novQ2C1PEqUurUD1K7oVV k3J//aJP"
            ],
            "RRSIG": [
                "DNSKEY 5 2 300 20260909010001 20260810010001 36786 ul.pt. ub871VnbVVkfJHrEkcebktjF9gKLL1uGM3TghGImUL9TdDE2f1EKvxy7 /RdTTnH++9V7aDFLjpulTGqTxzC3r2UJoCi5S1mxdDGVNGdlx5aH8yDg HKt2IVRITIEzb1cIyeDV9Wme8HEBQfitqQd2UB5nwRaEvOGnwrpkGuil X9Q=",
                "DNSKEY 5 2 300 20260909010001 20260810010001 63706 ul.pt. Tmv7QxeZn7iKI2LEoztLkX1J85iK7iJ/ydTpfh7I+mbFUznonnLARxln y6VF+va67OaLQA5AqW3pU8+EOMSzHeR92e7DeUxteyrrcZIPntcamJvZ QHsYwqCb1U2jMv30nmNnVCHaS8Z9uHN//dkgACBSpc6Np2ZtLL0WjMI5 H+GeihCR3fKyfIxpOIvO1e6NICFEl+kit2+ai1gJA1cwTplyvspdJc+x Bo7z2JFFTZT5WfmxlAo3+78wlC3mxu7+eu2Oeu47zX74KG3b0HkRtYCb Zfuwec0jXLD2Zp0dkbTXEyFT4RVFdKji6aKZpynY2vFWwnQO1lZaiyPe Qxa7yA==",
                "NS 5 2 300 20260909010001 20260810010001 36786 ul.pt. pNBgmm+PEEOUlPGlBwAPidmwNmcfwsFp6UUPOmeTf17ShdEcnYQ8tMyW eq8cOkJT/TaQWsm6fZ+gjXjdBZa7WNkJbdVQn6mkn+s+i3+5kItor+Cc FrhhwN25G4QKSRoPA31lTcteCeAX1vFVujUM/jAIpgyjkl52viJ93Twg 04g=",
                "TXT 5 2 300 20260909010001 20260810010001 36786 ul.pt. McoIVb0xLEQUz2YGhlAo4zumQHtg8G42nnSVHxQLC2AuDQvhzjpoiv/A wP1+u8grtKMaoTE4SKXOnQis+nd/zvX4JVLEWiIROBj+pilaV3ALJ4xP 1413Trfj/1DDdky6F4ruXQSpQRiyyNLkDPlNaHQEcowi5R+KgP9/TEH4 8+I=",
                "DS 13 2 7200 20260820162022 20260810162022 30640 pt. 476ixpOHGetA8GCVOFMiIGc3AKO6cA+2Wo6rs8GeFofmF7BUg9W4vIJ/ C38fTcLD8RszxJ7hDTSjhVXl1XAMPw==",
                "CAA 5 2 300 20260909010001 20260810010001 36786 ul.pt. n2uc9zE8EtmEFd3T+HklJ/hjlmrR1mu/iQLhXvtjQDMbsJ/iRJOvmCsl lcr9dxbdweosmBtSD2ah+w1VEVlHXBCafkQcPHsUCOvXNyQwF5r76Rhh PfYKNJkh/2XcGMF7pp4x/aoz6OPK9yZxeXZ+1PYLncrzfCH1QAih34pB cK0="
            ],
            "NSEC": [
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            ],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [
                "100 10 \"S\" \"x-eduroam:radius.tls\" \"\" _radsec._tcp.ulisboa.pt."
            ],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "194.117.3.27"
        ],
        "ipv6": []
    },
    "mail": {
        "spf": "v=spf1 mx a:mx21.ulisboa.pt a:mx22.ulisboa.pt a:mx23.ulisboa.pt a:mx24.ulisboa.pt a:ul-listsrv05.ul.pt ip4:194.117.2.9 ip4:194.117.3.12 -all",
        "dmarc": "",
        "dkim_selector": "x",
        "dkim_host": "",
        "dkim": "",
        "spf_analysis": {
            "valid": true,
            "lookups": 6,
            "final": "-all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": false,
            "policy": ""
        },
        "bimi": "",
        "mta_sts": "",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "194.117.3.27"
                    ],
                    "time_ms": 275.73
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
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                    ],
                    "time_ms": 260.23
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
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                    ],
                    "time_ms": 190.7
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "194.117.3.27"
                    ],
                    "time_ms": 356.2
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "194.117.3.27"
                    ],
                    "time_ms": 255.56
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "Hellenic Academic and Research Institutions CA",
        "subject": "ul.pt",
        "valid_from": "2026-07-23T05:00:09-05:00",
        "valid_to": "2027-02-07T04:00:08-06:00",
        "days_remaining": 180,
        "san": [
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            "*.ul.pt"
        ],
        "protocol": "TLSv1.2",
        "cipher": "ECDHE-RSA-AES128-GCM-SHA256"
    },
    "http": {
        "url": "https://www.ulisboa.pt/",
        "status": "HTTP/1.1 200 OK",
        "http_version": "2",
        "headers": {
            "cache-control": "must-revalidate, no-cache, private",
            "content-length": "0",
            "location": "https://www.ulisboa.pt/",
            "connection": "close",
            "date": "Mon, 10 Aug 2026 17:23:56 GMT",
            "server": "Apache",
            "content-language": "pt-pt",
            "x-content-type-options": "nosniff",
            "expires": "Sun, 19 Nov 1978 05:00:00 GMT",
            "x-permitted-cross-domain-policies": "none",
            "content-type": "text/html; charset=UTF-8"
        },
        "security_checks": {
            "strict-transport-security": false,
            "content-security-policy": false,
            "x-content-type-options": true,
            "x-frame-options": false,
            "referrer-policy": false,
            "permissions-policy": false,
            "cross-origin-opener-policy": false,
            "cross-origin-embedder-policy": false,
            "cross-origin-resource-policy": false
        },
        "server": "Apache",
        "powered_by": ""
    },
    "webpage": {
        "url": "https://www.ulisboa.pt/",
        "title": "Universidade de Lisboa",
        "description": "A maior universidade portuguesa e uma das maiores da Europa. No coração da cidade de Lisboa, oferecemos uma das melhores e mais diversificadas ofertas formativas e prometemos ser uma experiência única e enriquecedora.",
        "success": true,
        "error": "",
        "status": 200
    },
    "network": {
        "194.117.3.27": {
            "success": false,
            "country": "",
            "region": "",
            "city": "",
            "asn": "",
            "organization": "",
            "isp": ""
        }
    },
    "smtp": {
        "host": "mx22.ulisboa.pt",
        "ports": [
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                "port": 25,
                "open": false,
                "time_ms": 113.2,
                "banner": "",
                "error": "Network is unreachable"
            },
            {
                "port": 465,
                "open": false,
                "time_ms": 111.5,
                "banner": "",
                "error": "No connection"
            },
            {
                "port": 587,
                "open": false,
                "time_ms": 111.1,
                "banner": "220 mx22.ulisboa.pt ESMTP",
                "error": "No connection"
            }
        ]
    },
    "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": 77.68
}