{
    "ok": true,
    "domain": "liu.se",
    "generated_at": "2026-08-09T00:18:26-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 93,
        "label": "Excellent",
        "categories": {
            "dns": 95,
            "mail": 95,
            "security": 84,
            "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": "3 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": 5,
                "lost_points": 0,
                "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": "62 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": 30,
                "lost_points": 0,
                "detail": "PTR: www.liu.se"
            },
            {
                "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": "3 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": "ok",
                "title": "MTA-STS",
                "detail": "Mail transport policy.",
                "category": "mail",
                "max_points": 5,
                "earned_points": 5,
                "lost_points": 0
            },
            {
                "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": "62 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": "ok",
                "title": "PTR reverse DNS",
                "detail": "PTR: www.liu.se",
                "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": [
                "130.236.18.52"
            ],
            "AAAA": [
                "2001:6b0:17:f100::18:52"
            ],
            "CNAME": [],
            "MX": [
                "20 liu-se.mail.protection.outlook.com."
            ],
            "TXT": [
                "\"Wj9GiC5Odz69gYhwyRfmweCsYW09jv3XC8WopVAdvMFF/lyoYPJnLKHnwXYRKf9Hxhh197Tri7V3XxsaU/3mAA==\"",
                "\"onetrust-domain-verification=6395e087f71047acbfed803444d7225c\"",
                "\"canva-site-verification=G1DsDdUTb-poz0XM3Jb_EQ\"",
                "\"MS=ms85100167\"",
                "\"MS=ms22226716\"",
                "\"TeXoJcGilMACE4ZaaVK68AEKhdEDMrLv\"",
                "\"graphpad.com:domain-verification=YQUm4as6A-wBSOQ6dVTfpQ\"",
                "\"v=spf1 +ip4:130.236.0.0/16 +ip6:2001:6b0:17::/48 include:spf.protection.outlook.com include:spf.wm.net include:bngaged.io ~all\"",
                "\"ZOOM_verify__IVTfY8nSHOL-qRMRLRBEg\"",
                "\"google-site-verification=BqNguxZguI-ROsTDOffJYIbpp3xG-AnGw1UuB9bLz_8\"",
                "\"autodesk-domain-verification=ve1q8LiBOwQ-7cjPTV0Y\"",
                "\"google-site-verification=3KQVNJpqJy1SccT-B4gOno8UGDneIdJA1EUfercg7l0\"",
                "\"adobe-idp-site-verification=c5cff5372afafaee2faa9836950eb48bffb02fec9b5af3fab9bcc37d80ea5b3e\""
            ],
            "NS": [
                "sunic.sunet.se.",
                "ns3.liu.se.",
                "ns4.liu.se."
            ],
            "SOA": [
                "blox.it.liu.se. domainmaster.liu.se. 2015407271 36000 3600 1209600 600"
            ],
            "CAA": [],
            "DS": [
                "41059 8 2 25F1ACEE3FD2DF47FD920921D619D9C5DA7F9F43EB7FBCB25AB82BF1 DA2976B3"
            ],
            "DNSKEY": [
                "257 3 8 AwEAAdfuY2B1pr4W/GvoeTGR7zOmyWrMk4dcMMxNqcSJmdFkWiQx+gjQ 2WhQ9PvWofe/r3tuz899TSZeIRadWZ+gAyz/7n8E4UW7cBQAuM38oLw1 6mlc9Ye+R57G9D66vDYkFdszkm+/OSWnFLgxOMZw8yN5DuHS/i2ErYLJ qgbn2TbXxJG1RxSDSlA33w+y88qiPUg28NMVkAuhOnlfZPI1tZoIgPGq A3PmTI9XbulBO9ndYFkZ8AbAW7HcNEKD8EN/qmu1PTQqTcwUk6k5IHY0 MBLUqgusBDKOk8NsWP93trr9w1aAJ5QaXD8Q9z8koN6CO7coNmyYwuRy /UJxJwh/s9M=",
                "256 3 8 AwEAAYLpXpDlk0j1rImNkncKXBOe1weQ84iUTAs2Azy4GsPIMiyfXceT 59kSmZregh0IJm1GXnBfxeVRyJu8NbwRaCiiLz6eqNZgzt5fkUToEP2I 0f2aPrvwpNl9NAEswH8ir5OMuMBPb9pAB3JcFQEv6tBCWjC6o5E/m/rD fQnQDOpSFrqy9Kj6RgMDpZgLZrpIvfeQa7Y1ZuTQq6qVQmZiLc3RZKPU j6aPGspzP4p04dJCx0qq2rQNLOwVWXfHDF26D1uGwN2JgQmpbI1hjZ7Y r/HbiWkpBfiEVh9F0cojdtTgDPc9vYwaHEpa8EDv65eRCh6bYlgtr+Tq dyyTuw5/+AE=",
                "257 3 8 AwEAAdYUOisH6Tj4u11ysN9RQjJYwclEPALuYz3dwIQLY+zopz1CXx06 P/TRiB5kw6vBSOA9NDJ6LARr4bDbVMID+xiBLoxtjgMb/oTCgF4JiAV7 9Y+6zfg+NYSXBmTqxtTIs7GnLre2KWiAgxHA3snb47KGKdhOJmS9uZOb wvktIFUeo3TWRH98DjeSTnhYJjulTOOyDrLD56PB74srl3JN3u8qWFi5 InkN91Csf0IlUukzRBQZ7qwxgCKv6AF9o2Q/pIL4/viNVazY0zQixMCr fA2PktYZlqvjzI6/iSlSMW+A5Pi1TL15tlPu3m0F00lgsfNWErA7O+qA UlYIWD70LHk=",
                "256 3 8 AwEAAdobdgIh7YKqQOwCH+qMbY37gF/U+81phRxguW2vLlv68u53UHGs E5vz0QMU5gEuAR0xKceUpHiob7Kw5wNfM2D7j5Pelyy9vWH7xIPGx2bZ b6BU6WuljZAQj+5tMXd/eOegRUDuAlldB8/kPcnkrB4/DOmIghrWD/uV udZRLfzP3KZqfDaxVK14wkNcT3hzVxIkzm1Qw68+1TzEjp5vGBhvMlwT i25oXlL19PJM4vNhyNz/dkScrviKERf1kCXr/iXTdLIVduK1lgttH//j efmSzpO5JoDnEF7rBkAbMI6d8RTCaLFIFedCGQU3oiCXmiUFf8lHvYIb P544BwVqN0s="
            ],
            "RRSIG": [
                "DS 8 2 3600 20260823031137 20260809014137 9573 se. MPhprwAxhVnXO+ri9Hm5qb2I9E+toNToXeWxl7FpoClOWk1/9eIHHiD6 raaDNv4FKDLxR1TVnY9ocO0iTQx7K60x1nf92/N2KYuPaDFTAZ12GQ1K O2X0e4m3B4J7FP62ph4mAtuK19GqeJ4BukJ0c/yKExwAlaZRT310v+Hy yFnUaIuz8ccbOlAd9aEMXCAzvaxpjvQiyLoK7ozk3V2X4Ona7Lr2EHI6 bG/i/yMV3BlJ7nV4UP3n2xFhdzcdwygwDfx5a4IVz9KYkY3ql2+Ly1iP hxGEUulYpEESB9dBUGf9IhA+6GGIlBspRI3H8+/CGIOqSTYlC7U8PWFC pEdsjQ==",
                "NS 8 2 3600 20260904131723 20260807123422 62566 liu.se. egg31xCSDj84/WIlToxxWcBoBvZKUcZHj/QqrJmx8It4WqBIqqBLerl+ tQcDrzqHNOfiGR+HCYrnEs7zXdiVYwOCLEkqXXynu3IuwDAgS8tkIvyf S5eOLBWt0GizdK2mgV7pUZSPuHpThy4/1PnO6iAfNM0ogYgBcuOKi2AT b1w1ZOP8XWFatdvKNUIwtDhuv99hSOmR/Cf1jZheDYSFZImsXRFPzKyO PrQKQqLT04T34/JUDRNbx+Xxd7cVRdp/SePF3u1+apinBMchVJy+vMyu lCg6NCa3T3WZ5dcQWwon8etNzV7lpWLevdPcf9MQE9y+8wR1sj8ksV3D ueEZRQ==",
                "MX 8 2 3600 20260904131707 20260807131310 62566 liu.se. JCuqUZrlLJFZ20x3aAk7UBNzChILGP6WPmRiz6ITaXkIQqn307vrxMiH KksskUDDaxEmeD25Vjo5x5aPvGDx6W6rzGeYnY6zd17JUNO86cAvSDWn K9oIMOkdx2J/8WcTHAXgTyx2bDBN5FCQ2SkLUusMoJemhDLtsOft4jMW JWND4hhx7fDDi9JiulZRVFf6pRjZWRJukgupcnc8T95DqkeOwquVV1xo XmWlD0JQYMrCAg/wg02uRZnk9OuWMliKHIHTrtTFA5eEUydA22N82IRN VLPiVuvE7x8SfXM9dyK3KKacl2JhCowEJQs6TmCQAWu1/BOckYS2TiMs GZWWug=="
            ],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "130.236.18.52"
        ],
        "ipv6": [
            "2001:6b0:17:f100::18:52"
        ]
    },
    "mail": {
        "spf": "v=spf1 +ip4:130.236.0.0/16 +ip6:2001:6b0:17::/48 include:spf.protection.outlook.com include:spf.wm.net include:bngaged.io ~all",
        "dmarc": "v=DMARC1; p=reject; rua=mailto:re+mqtv8v3e6x7@dmarc.postmarkapp.com; ruf=mailto:dmarc@it.liu.se; sp=none; aspf=r;",
        "dkim_selector": "selector1",
        "dkim_host": "selector1._domainkey.liu.se",
        "dkim": "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuUilh3Dw43DN1B69E8DwydXkjOj+bgAiMgw4wdnS3X9X+B1s+Ju4JpVAXro7ETh/Jc+c7+gkLEwlvlbWcOKKMdBHDt8J+ndSlvqm2BDYHH6s3AH8ldzht8W24ffXjiOXUO+0r9z/JGjAXwhLmc+84aVJA3C4MVcF8D8RxYXNJNQl9YOkMnQhM14cCAIoh11p3fNkbM4LPKMhYAT4bYMe+5jGdsa0nQMae3ZZlRI078be+ABlVWzYv0enki9vGJZLbvq83MRMsGorR1knq+GV+pWvx2tY0tOofnbmoCUjR3078sJXquwMOxErMlAgGuMqJ8xzINVxUWaxZmacCTvQaQIDAQAB;",
        "spf_analysis": {
            "valid": true,
            "lookups": 3,
            "final": "~all",
            "message": "Within the estimated limit"
        },
        "dmarc_analysis": {
            "valid": true,
            "policy": "reject"
        },
        "bimi": "",
        "mta_sts": "v=STSv1;id=20230420T000000;",
        "tls_rpt": ""
    },
    "advanced": {
        "ptr": "www.liu.se",
        "propagation": {
            "consistent": true,
            "results": [
                {
                    "provider": "Google",
                    "server": "8.8.8.8",
                    "result": [
                        "130.236.18.52"
                    ],
                    "time_ms": 34.66
                },
                {
                    "provider": "Cloudflare",
                    "server": "1.1.1.1",
                    "result": [
                        "130.236.18.52"
                    ],
                    "time_ms": 149.5
                },
                {
                    "provider": "Quad9",
                    "server": "9.9.9.9",
                    "result": [
                        "130.236.18.52"
                    ],
                    "time_ms": 281.36
                },
                {
                    "provider": "OpenDNS",
                    "server": "208.67.222.222",
                    "result": [
                        "130.236.18.52"
                    ],
                    "time_ms": 148.17
                },
                {
                    "provider": "AdGuard",
                    "server": "94.140.14.14",
                    "result": [
                        "130.236.18.52"
                    ],
                    "time_ms": 256.97
                }
            ]
        }
    },
    "ssl": {
        "available": true,
        "issuer": "Let's Encrypt",
        "subject": "liu.se",
        "valid_from": "2026-07-12T18:15:20-05:00",
        "valid_to": "2026-10-10T18:15:19-05:00",
        "days_remaining": 62,
        "san": [
            "liu.se",
            "www.liu.se"
        ],
        "protocol": "TLSv1.3",
        "cipher": "TLS_AES_256_GCM_SHA384"
    },
    "http": {
        "url": "https://liu.se/",
        "status": "HTTP/1.1 200 OK",
        "http_version": "2",
        "headers": {
            "date": "Sun, 09 Aug 2026 05:17:48 GMT",
            "server": "Apache",
            "upgrade": "h2",
            "connection": "Upgrade",
            "cache-control": "max-age=121",
            "accept-ch": "Sec-CH-UA-Full-Version-List,Sec-CH-UA-Platform-Version,Sec-CH-UA-Arch,Sec-CH-UA-Model,Sec-CH-UA-Bitness",
            "content-length": "59554",
            "set-cookie": "shell#lang=en; path=/; secure; SameSite=None",
            "vary": "Accept-Encoding",
            "strict-transport-security": "max-age=31536000; preload",
            "x-frame-options": "SAMEORIGIN",
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