{
    "ok": true,
    "domain": "mtu.edu",
    "generated_at": "2026-08-09T04:45:01-05:00",
    "cache": {
        "hit": true,
        "ttl": 0
    },
    "score": {
        "total": 79,
        "label": "Good",
        "categories": {
            "dns": 75,
            "mail": 90,
            "security": 69,
            "network": 50,
            "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": "5 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": 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": "5 MX record(s)."
            },
            {
                "category": "mail",
                "title": "SPF",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0,
                "detail": "SPF policy published."
            },
            {
                "category": "mail",
                "title": "DMARC",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0,
                "detail": "DMARC policy published."
            },
            {
                "category": "mail",
                "title": "DKIM",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "A DKIM selector was verified."
            },
            {
                "category": "mail",
                "title": "MTA-STS",
                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5,
                "detail": "Mail transport policy."
            },
            {
                "category": "mail",
                "title": "TLS-RPT",
                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5,
                "detail": "TLS reporting policy."
            },
            {
                "category": "security",
                "title": "Valid TLS certificate",
                "max_points": 55,
                "earned_points": 55,
                "lost_points": 0,
                "detail": "121 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": 30,
                "lost_points": 0,
                "detail": "PTR: mtu.edu"
            },
            {
                "category": "network",
                "title": "IPv4 diversity",
                "max_points": 35,
                "earned_points": 20,
                "lost_points": 15,
                "detail": "Two or more IPv4 addresses receive full points."
            },
            {
                "category": "network",
                "title": "IPv6 connectivity",
                "max_points": 35,
                "earned_points": 0,
                "lost_points": 35,
                "detail": "AAAA availability."
            },
            {
                "category": "availability",
                "title": "DNS resolution",
                "max_points": 40,
                "earned_points": 40,
                "lost_points": 0,
                "detail": "At least one address family must resolve."
            },
            {
                "category": "availability",
                "title": "HTTP response",
                "max_points": 40,
                "earned_points": 40,
                "lost_points": 0,
                "detail": "HTTP/2 200 "
            },
            {
                "category": "availability",
                "title": "HTTPS final URL",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0,
                "detail": "Final URL uses HTTPS."
            }
        ],
        "methodology": "Each category is normalized to 100. The total is the weighted sum: DNS 25%, Email 20%, Security 25%, Network 10%, Availability 20%.",
        "diagnostics": [
            {
                "level": "ok",
                "title": "IPv4 (A)",
                "detail": "1 IPv4 address(es) detected.",
                "category": "dns",
                "max_points": 30,
                "earned_points": 30,
                "lost_points": 0
            },
            {
                "level": "error",
                "title": "IPv6 (AAAA)",
                "detail": "0 IPv6 address(es) detected.",
                "category": "dns",
                "max_points": 10,
                "earned_points": 0,
                "lost_points": 10
            },
            {
                "level": "ok",
                "title": "Name server redundancy",
                "detail": "5 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": "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": "5 MX record(s).",
                "category": "mail",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "SPF",
                "detail": "SPF policy published.",
                "category": "mail",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "DMARC",
                "detail": "DMARC policy published.",
                "category": "mail",
                "max_points": 25,
                "earned_points": 25,
                "lost_points": 0
            },
            {
                "level": "ok",
                "title": "DKIM",
                "detail": "A DKIM selector was verified.",
                "category": "mail",
                "max_points": 20,
                "earned_points": 20,
                "lost_points": 0
            },
            {
                "level": "error",
                "title": "MTA-STS",
                "detail": "Mail transport policy.",
                "category": "mail",
                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5
            },
            {
                "level": "error",
                "title": "TLS-RPT",
                "detail": "TLS reporting policy.",
                "category": "mail",
                "max_points": 5,
                "earned_points": 0,
                "lost_points": 5
            },
            {
                "level": "ok",
                "title": "Valid TLS certificate",
                "detail": "121 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": "ok",
                "title": "PTR reverse DNS",
                "detail": "PTR: mtu.edu",
                "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": "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": [
                "141.219.70.117"
            ],
            "AAAA": [],
            "CNAME": [],
            "MX": [
                "5 alt1.aspmx.l.google.com.",
                "5 alt2.aspmx.l.google.com.",
                "10 aspmx3.googlemail.com.",
                "10 aspmx2.googlemail.com.",
                "1 aspmx.l.google.com."
            ],
            "TXT": [
                "\"e2ma-verification=luveb\"",
                "\"e2ma-verification=5gpeb\"",
                "\"google-site-verification=_AZlprY5eM4Vq-CEZYqi5Vdijf5ACXlgjUcmaZO44NU\"",
                "\"atlassian-domain-verification=2qCpeFuaK61/oMB9pXnozR19mgu8KbyNdwprWPvmWgxYfnvg5VksFJrI1oZX/90D\"",
                "\"e2ma-verification=c4zcb\"",
                "\"google-site-verification=wBIpx8JjuJfOH4oBmX8gtGGdRbSnHHL_LkH6ObknzBs\"",
                "\"hpe-greenlake-domain-verification=4f3961437a6a6f57703350625352734436587364526f6f704c68474e3032582d\"",
                "\"e2ma-verification=duvet\"",
                "\"e2ma-verification=kuveb\"",
                "\"amazonses:KUSt0CCDJKsqh3o9tzCqLjbQgUB5R2qu9M0Y181h744=\"",
                "\"e2ma-verification=guveb\"",
                "\"apple-domain-verification=9TnymFYXDrZtPI4H\"",
                "\"e2ma-verification=juveb\"",
                "\"e2ma-verification=d4zcb\"",
                "\"DCFBAA7E88A8B23AC6F0C68CC974FBF4\"",
                "\"v=spf1 ip4:141.219.0.0/16 include:secure.giftlegacy.com include:_spf.google.com include:emailsrvr.com include:e2ma.net include:spf.watermarkinsights.com ip4:209.61.151.0/24 ip4:166.78.68.0/22 ip4:198.61.254.0/23 ip4:192.237.158.0/23 ip4:23.253.182.0/\" \"23 ip4:104.130.96.0/28 ip4:146.20.113.0/24 ip4:146.20.191.0/24 ip4:159.135.224.0/20 ip4:69.72.32.0/20 ip4:104.130.122.0/23 ip4:146.20.112.0/26 ip4:161.38.192.0/20 ip4:143.55.224.0/21 ip4:143.55.232.0/22 ip4:159.112.240.0/20 ip4:198.244.48.0/20 ip4:20\" \"4.220.168.0/21 ip4:204.220.176.0/20 ip4:38.106.32.22/32 ip4:38.106.32.46/32 ip4:54.240.121.247 ip4:54.240.121.248 ip4:103.237.104.0/22 ip4:104.47.0.0/17 ip4:13.111.0.0/20 ip4:132.174.100.123 ip4:132.174.100.127 ip4:132.174.100.128 ip4:132.174.100.129\" \" ip4:132.174.129.13 ip4:132.174.29.192/27 ip4:134.170.132.0/24 ip4:134.170.140.0/24 ip4:136.146.128.64/27 ip4:136.146.208.16/28 ip4:136.146.210.16/28 ip4:136.147.128.0/20 ip4:136.147.176.0/20 ip4:136.147.176.0/24 ip4:136.147.182.0/24 ip4:136.147.46.1\" \"92/26 ip4:136.147.62.192/26 ip4:139.146.146.128/25 ip4:139.146.160.0/25 ip4:157.55.133.0/25 ip4:157.55.158.0/23 ip4:157.55.234.0/24 ip4:157.56.110.0/23 ip4:157.56.112.0/24 ip4:157.56.116.0/25 ip4:157.56.120.0/25 ip4:157.56.87.192/26 ip4:162.247.216.0\" \"/22 ip4:167.89.0.0/17 ip4:173.193.132.0/23 ip4:173.203.2.0/25 ip4:173.203.6.0/23 ip4:174.137.46.0/24 ip4:174.36.80.208/28 ip4:174.36.84.12 ip4:174.36.84.14/31 ip4:174.36.84.245 ip4:174.36.84.32 ip4:174.36.92.96/27 ip4:182.50.78.64/28 ip4:185.12.80.0/\" \"22 ip4:185.28.196.0/22 ip4:188.172.128.0/20 ip4:192.161.144.0/20 ip4:192.254.112.0/20 ip4:192.28.128.0/18 ip4:192.41.76.4 ip4:192.41.90.128/26 ip4:192.87.104.130 ip4:192.87.44.30 ip4:193.240.184.6 ip4:193.240.184.7 ip4:198.137.189.11 ip4:198.137.190.\" \"123 ip4:198.187.195.89 ip4:198.187.196.0/24 ip4:198.21.0.0/21 ip4:198.245.80.0/20 ip4:198.245.81.0/24 ip4:198.37.144.0/20 ip4:199.106.139.112/28 ip4:199.122.120.0/21 ip4:199.15.212.0/22 ip4:199.244.78.223 ip4:199.244.78.224 ip4:199.91.136.26 ip4:199.\" \"91.136.28 ip4:199.91.140.26 ip4:204.14.232.64/28 ip4:204.14.234.64/28 ip4:204.14.238.0/27 ip4:206.107.42.254 ip4:206.152.1.94 ip4:206.79.10.196 ip4:207.126.144.0/20 ip4:207.250.68.0/24 ip4:207.46.100.0/24 ip4:207.46.101.128/26 ip4:207.46.108.0/25 ip4\" \":207.46.163.0/24 ip4:207.46.51.64/26 ip4:207.67.38.0/24 ip4:207.67.98.192/27 ip4:208.117.48.0/20 ip4:208.43.21.28 ip4:208.43.21.66 ip4:208.43.21.70 ip4:209.43.22.0/28 ip4:213.199.154.0/24 ip4:213.199.180.0/24 ip4:213.212.88.171 ip4:216.138.238.192/26\" \" ip4:216.146.46.10 ip4:216.146.46.11 ip4:216.151.85.132 ip4:216.151.85.133 ip4:216.198.0.0/18 ip4:216.32.180.0/23 ip4:217.199.180.36 ip4:23.103.128.0/19 ip4:23.103.191.0/24 ip4:23.103.198.0/23 ip4:23.103.200.0/21 ip4:23.103.208.0/21 ip4:23.229.217.10\" \"8 ip4:27.111.242.222 ip4:37.188.97.188/32 ip4:40.107.0.0/16 ip4:50.31.32.0/19 ip4:50.57.0.0/27 ip4:52.2.127.126 ip4:52.2.36.135 ip4:59.167.34.100 ip4:62.204.93.131 ip4:63.146.161.230 ip4:64.106.241.148 ip4:64.132.88.0/23 ip4:64.132.92.0/24 ip4:64.18.\" \"0.0/20 ip4:64.4.22.64/26 ip4:64.72.147.0/24 ip4:65.55.169.0/24 ip4:65.55.88.0/24 ip4:66.150.160.0/24 ip4:66.18.116.43 ip4:66.231.80.0/20 ip4:66.35.37.96/27 ip4:67.192.241.0/24 ip4:67.228.21.188 ip4:67.228.50.32/27 ip4:68.232.192.0/20 ip4:69.164.120.7\" \"0 ip4:72.3.185.0/24 ip4:72.32.154.0/24 ip4:72.32.217.0/24 ip4:72.32.243.0/24 ip4:74.115.207.202 ip4:74.115.207.212 ip4:74.115.207.213 ip4:74.206.109.32/27 ip4:74.62.122.128/28 ip4:74.86.113.29 ip4:74.86.207.39 ip4:74.86.236.242 ip4:74.86.241.250 ip4:\" \"75.126.200.128/27 ip4:75.126.253.0/24 ip4:80.150.125.180 ip4:80.150.125.181 ip4:85.17.187.195 ip4:85.222.130.192/26 ip4:85.222.138.192/26 ip4:94.236.119.0/26 ip4:95.211.74.199 ip4:96.43.144.64/28 ip4:96.43.147.64/28 ip4:96.43.148.64/28 ip4:96.43.151.\" \"64/28 ip4:96.43.152.64/27 ip4:96.43.153.64/27 ip4:96.46.150.192/27 ip4:98.129.184.0/23 ip4:74.122.104.0/22 ip4:72.50.228.0/24 ip6:2607:f8b0:400c:c10::1b ip6:2800:3f0:4003:c01::1b ip6:2a01:111:f400::/48 ip6:2a04:35c0::/29 ~all\"",
                "\"MS=ms79839354\"",
                "\"e2ma-verification=duveb\"",
                "\"adobe-idp-site-verification=d1db47eb4cb939d4e965bb06f5ceacd822bc7b3e088fcfe12f3677a18917b380\"",
                "\"e2ma-verification=wtveb\"",
                "\"e2ma-verification=hd0fb\""
            ],
            "NS": [
                "dns2.mtu.edu.",
                "dns3.merit.net.",
                "dns2.merit.net.",
                "dns.mtu.edu.",
                "dns1.merit.net."
            ],
            "SOA": [
                "dns.mtu.edu. dns-admin.mtu.edu. 2026080600 900 450 604800 900"
            ],
            "CAA": [
                "0 issuewild \"sectigo.com\"",
                "0 issue \"emsign.com\"",
                "0 issuewild \"emsign.com\"",
                "0 issuewild \"letsencrypt.org\"",
                "0 issue \"sectigo.com\"",
                "0 issue \"godaddy.com\"",
                "0 issue \"digicert.com\"",
                "0 issuewild \"digicert.com\"",
                "0 issue \"globalsign.com\"",
                "0 issue \"letsencrypt.org\"",
                "0 iodef \"mailto:security@mtu.edu\"",
                "0 issue \"amazon.com\""
            ],
            "DS": [],
            "DNSKEY": [],
            "RRSIG": [],
            "NSEC": [],
            "NSEC3": [],
            "SRV": [],
            "NAPTR": [],
            "TLSA": [],
            "SSHFP": []
        },
        "ipv4": [
            "141.219.70.117"
        ],
        "ipv6": []
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