{ "ok": true, "domain": "cofc.edu", "generated_at": "2026-08-10T12:57:04-05:00", "cache": { "hit": true, "ttl": 0 }, "score": { "total": 78, "label": "Good", "categories": { "dns": 70, "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": "4 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": 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": 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": "42 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: li931-205.members.linode.com" }, { "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": "4 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": "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": "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": "42 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: li931-205.members.linode.com", "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/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": [ "45.56.113.205" ], "AAAA": [], "CNAME": [], "MX": [ "0 cofc-edu.mail.protection.outlook.com." ], "TXT": [ 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"ns-1552.awsdns-02.co.uk.", "ns-1531.awsdns-63.org.", "ns-614.awsdns-12.net." ], "SOA": [ "ns-502.awsdns-62.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400" ], "CAA": [], "DS": [], "DNSKEY": [], "RRSIG": [], "NSEC": [], "NSEC3": [], "SRV": [], "NAPTR": [], "TLSA": [], "SSHFP": [] }, "ipv4": [ "45.56.113.205" ], "ipv6": [] }, "mail": { "spf": "v=spf1 redirect=cofc.edu.hosted.spf-report.com", "dmarc": "v=DMARC1; p=none; rua=mailto:0bb4e4f9@mxtoolbox.dmarc-report.com,mailto:dm-aggregate@cofc.edu; ruf=mailto:0bb4e4f9@forensics.dmarc-report.com,mailto:dm-fail@cofc.edu;", "dkim_selector": "selector1", "dkim_host": "selector1._domainkey.cofc.edu", "dkim": "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCmEPb2Pceh6SfiLwEfPk3T33gOEzoKRilT9binza/1UXibonpyp9YmMjPPqZhAZ1EnNJGQlxMuCoO8zG8aljxsLSMSWqMXl7cxyCajkrT/FvykJKCqp9N86BHirxWfJc+obhHPZUqUu2W2IIAMJWINFoSHkX2K92vJ67DVO2ao2wIDAQAB; n=1024,1449999426,1465810626", "spf_analysis": { "valid": true, "lookups": 1, "final": "", "message": "Within the estimated limit" }, "dmarc_analysis": { "valid": true, "policy": "none" }, "bimi": "", "mta_sts": "", "tls_rpt": "" }, "advanced": { "ptr": "li931-205.members.linode.com", "propagation": { "consistent": true, "results": [ { "provider": "Google", "server": "8.8.8.8", "result": [ "66.228.54.157" ], "time_ms": 98.66 }, { "provider": "Cloudflare", "server": "1.1.1.1", "result": [ "66.228.54.157" ], "time_ms": 51.37 }, { "provider": "Quad9", "server": "9.9.9.9", "result": [ "66.228.54.157" ], "time_ms": 61.01 }, { "provider": "OpenDNS", "server": "208.67.222.222", "result": [ "66.228.54.157" ], "time_ms": 33.75 }, { "provider": "AdGuard", "server": "94.140.14.14", "result": [ "66.228.54.157" ], "time_ms": 72.45 } ] } }, "ssl": { "available": true, "issuer": "Internet2", "subject": "charleston.edu", "valid_from": "2025-08-20T19:00:00-05:00", "valid_to": "2026-09-21T18:59:59-05:00", "days_remaining": 42, "san": [ "charleston.edu", "*.charleston.edu", "*.cofc.edu", "cofc.edu" ], "protocol": "TLSv1.3", "cipher": "TLS_AES_256_GCM_SHA384" }, "http": { "url": "https://charleston.edu/", "status": "HTTP/1.1 200 OK", "http_version": "2", "headers": { "date": "Mon, 10 Aug 2026 17:56:55 GMT", "server": "Apache", "upgrade": "h2,h2c", "connection": "Upgrade", "location": "https://charleston.edu/", "content-security-policy": "frame-src 'self' https://app.cofcsports.com https://google.com https://www.google.com https://*.snapchat.com https://*.adsrvr.org charleston.gpinsights.org https://td.doubleclick.net https://*.fls.doubleclick.net https://www.googletagmanager.com https://googletagmanager.com https://go.pardot.com https://cofc.secure.force.com https://forms.charleston.edu https://forms.cofc.edu https://cofc-edu.my.salesforce-sites.com youtube.com *.youtube.com vimeo.com *.vimeo.com calendar.charleston.edu *.charleston.edu https://cofc.tfaforms.net www.imleagues.com imleagues.com *.k12insight.com k12insight.com cofc.edu *.cofc.edu cofc.zoom.us fm-cofc.maps.arcgis.com cougarconnect.cofc.edu outlook.office365.com *.arcgis.com teams.microsoft.com *.lightcastcc.com *.camstreamer.com *.buzzsprout.com buzzsprout.com;", "vary": "Accept-Encoding", "content-type": "text/html; charset=UTF-8" }, "security_checks": { "strict-transport-security": false, "content-security-policy": true, "x-content-type-options": false, "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://charleston.edu/", "title": "Welcome to the College of Charleston, a public university", "description": "Discover the College of Charleston, a dynamic public university offering diverse programs, rich student life and a culture of innovation for over 250 years.", "success": true, "error": "", "status": 206 }, "network": { "45.56.113.205": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" } }, "smtp": { "host": "cofc-edu.mail.protection.outlook.com", "ports": [ { "port": 25, "open": false, "time_ms": 22.6, "banner": "", "error": "Network is unreachable" }, { "port": 465, "open": false, "time_ms": 4033.5, "banner": "", "error": "Connection timed out" }, { "port": 587, "open": false, "time_ms": 4015.9, "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": 111.34 }