{ "ok": true, "domain": "usna.edu", "generated_at": "2026-08-10T17:32:44-05:00", "cache": { "hit": true, "ttl": 0 }, "score": { "total": 82, "label": "Good", "categories": { "dns": 85, "mail": 90, "security": 73, "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": "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": 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": "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": "137 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": 8, "lost_points": 27, "detail": "2 of 9 evaluated headers detected." }, { "category": "network", "title": "PTR reverse DNS", "max_points": 30, "earned_points": 30, "lost_points": 0, "detail": "PTR: www.usna.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/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": "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": "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": "137 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": "2 of 9 evaluated headers detected.", "category": "security", "max_points": 35, "earned_points": 8, "lost_points": 27 }, { "level": "ok", "title": "PTR reverse DNS", "detail": "PTR: www.usna.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/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": [ "136.160.88.139" ], "AAAA": [], "CNAME": [], "MX": [ "1 aspmx.l.google.com.", "10 alt3.aspmx.l.google.com.", "10 alt4.aspmx.l.google.com.", "5 alt2.aspmx.l.google.com.", "5 alt1.aspmx.l.google.com." ], "TXT": [ "\"35sqcn21n6tpj8b7ss7kl8fpkqlgkqth\"", "\"MS=FFA4BCA6F14EFD3DB476E2ED58EAB062063E83C0\"", "\"apple-domain-verification=QSV7fEUU1klWtogk\"", "\"google-site-verification=EdyTMfmIqs2ecfv3s36AmckvZ_nQiJp6HorNVXyoI_0\"", "\"_88d63cb993o3d1elyoam6wlfxxcbrj0\"", "\"google-site-verification=ne68o_3dtVn6fG2bIsUPeIDEViY0d8blB2E_Zvrg-wA\"", "\"adobe-idp-site-verification=1d738a39f37f7e6c04c405c0eb083a3b174373eec242bcb22b7dd88aa71e3221\"", "\"_oqy15nleng91ufwdq1mee56oqvgys7j\"", "\"v=spf1 ip4:136.160.88.0/21 ip4:216.177.90.7/32 ip4:209.67.131.231/32 ip4:216.177.90.15/32 ip4:50.31.43.252/32 ip4:168.245.122.109/32 ip4:216.24.224.0/20 include:_spf.google.com\" \" include:_spf.salesforce.com include:mh.blackboard.com include:spf.constantcontact.com include:spf1.formassembly.com -all\"" ], "NS": [ "ns-a.usna.edu.", "ns-b.usna.edu." ], "SOA": [ "ns-a.usna.edu. dns.usna.edu. 2015125005 21600 2160 1296000 900" ], "CAA": [], "DS": [ "31696 8 2 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Ul2q92VJDn1q8G+MbiuLbJuD9CDLNVTlT2qMV7GxQA/cwKwE9eCZeb6Q 2/ojL3fhM8j4JASrcCO1lpNGeIzC6A==" ], "NSEC": [], "NSEC3": [], "SRV": [], "NAPTR": [], "TLSA": [], "SSHFP": [] }, "ipv4": [ "136.160.88.139" ], "ipv6": [] }, "mail": { "spf": "v=spf1 ip4:136.160.88.0/21 ip4:216.177.90.7/32 ip4:209.67.131.231/32 ip4:216.177.90.15/32 ip4:50.31.43.252/32 ip4:168.245.122.109/32 ip4:216.24.224.0/20 include:_spf.google.com include:_spf.salesforce.com include:mh.blackboard.com include:spf.constantcontact.com include:spf1.formassembly.com -all", "dmarc": "v=DMARC1; p=reject; sp=reject; rua=mailto:dmarc_reporting@usna.edu,mailto:dmarc_reports@mail.mil", "dkim_selector": "google", "dkim_host": "google._domainkey.usna.edu", "dkim": "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAiOmDywfzHP3okdM1IChzLC/gTMlnIjBQ5VXVdtjfsNNRyaGzCkitYLCnsszTJKk0Wa1zi7nceV4ptFI4Wemt5vlkesuNdtQLWoFaCeh01P86aSNJroT1wVTzxTX0vToljTuozPc8qnOixO2Ho7W5KoUpCxiZvhyN14n1b6FFFouGVFrYOebfHQzFWZJ9VPfRPhtwH+GsBj/p3/5OEfoN4awb7QA4KLmxG6Rb8Cq+YsT3v8fYLon+Yye1uyrQAxaV74gtxnIhOezoqBlvhMmIvM1P4fG3DYFwanWP/qB2T2vtiFPfEHoGi3YA95QIJCGREobBwFxfmMdUT75m4ARIKwIDAQAB", "spf_analysis": { "valid": true, "lookups": 5, "final": "-all", "message": "Within the estimated limit" }, "dmarc_analysis": { "valid": true, "policy": "reject" }, "bimi": "", "mta_sts": "", "tls_rpt": "" }, "advanced": { "ptr": "www.usna.edu", "propagation": { "consistent": true, "results": [ { "provider": "Google", "server": "8.8.8.8", "result": [ "136.160.88.139" ], "time_ms": 75.38 }, { "provider": "Cloudflare", "server": "1.1.1.1", "result": [ "136.160.88.139" ], "time_ms": 218.62 }, { "provider": "Quad9", "server": "9.9.9.9", "result": [ "136.160.88.139" ], "time_ms": 29.95 }, { "provider": "OpenDNS", "server": "208.67.222.222", "result": [ "136.160.88.139" ], "time_ms": 47.75 }, { "provider": "AdGuard", "server": "94.140.14.14", "result": [ "136.160.88.139" ], "time_ms": 47.18 } ] } }, "ssl": { "available": true, "issuer": "DigiCert Inc", "subject": "www.usna.edu", "valid_from": "2026-06-09T19:00:00-05:00", "valid_to": "2026-12-25T17:59:59-06:00", "days_remaining": 137, "san": [ "www.usna.edu", "usna.edu" ], "protocol": "TLSv1.3", "cipher": "TLS_AES_128_GCM_SHA256" }, "http": { "url": "https://usna.edu/homepage.php", "status": "HTTP/1.1 200 OK", "http_version": "2", "headers": { "date": "Mon, 10 Aug 2026 22:32:36 GMT", "expires": "Thu, 19 Nov 1981 08:52:00 GMT", "cache-control": "no-cache, private", "pragma": "no-cache", "set-cookie": "TS01d5285a=017069502d693e3ef3c70fb1860ead1ea48ce5ad992e87c73498f9a0476823bb830f57a795e1660f2dad943175279f53e6d1e5c223; Path=/", "x-frame-options": "SAMEORIGIN", "access-control-allow-origin": "*", "upgrade": "h2,h2c", "connection": "Upgrade", "location": "https://usna.edu/homepage.php", "content-type": "text/html; charset=UTF-8", "strict-transport-security": "max-age=31536000; includeSubDomains", "transfer-encoding": "chunked" }, "security_checks": { "strict-transport-security": true, "content-security-policy": false, "x-content-type-options": false, "x-frame-options": true, "referrer-policy": false, "permissions-policy": false, "cross-origin-opener-policy": false, "cross-origin-embedder-policy": false, "cross-origin-resource-policy": false }, "server": "", "powered_by": "" }, "webpage": { "url": "https://usna.edu/homepage.php", "title": "USNA Home :: Leaders to Serve the Nation :: USNA", "description": "Explore the United States Naval Academy: Discover recent news, events, academic programs, and the mission to develop leaders for the Navy and Marine Corps.", "success": true, "error": "", "status": 200 }, "network": { "136.160.88.139": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" } }, "smtp": { "host": "aspmx.l.google.com", "ports": [ { "port": 25, "open": false, "time_ms": 21.6, "banner": "220 mx.google.com ESMTP 586e51a60fabf-459f208b4a7si9385912fac.271 - gsmtp", "error": "No connection" }, { "port": 465, "open": false, "time_ms": 4004.3, "banner": "", "error": "Connection timed out" }, { "port": 587, "open": false, "time_ms": 4019.5, "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": 92.68 }