{ "ok": true, "domain": "sans.edu", "generated_at": "2026-08-10T11:02:27-05:00", "cache": { "hit": true, "ttl": 0 }, "score": { "total": 82, "label": "Good", "categories": { "dns": 75, "mail": 90, "security": 84, "network": 35, "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": "2 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": 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": "2 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": "43 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": 0, "lost_points": 30, "detail": "PTR not detected." }, { "category": "network", "title": "IPv4 diversity", "max_points": 35, "earned_points": 35, "lost_points": 0, "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": "2 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": "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": "2 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": "43 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": "error", "title": "PTR reverse DNS", "detail": "PTR not detected.", "category": "network", "max_points": 30, "earned_points": 0, "lost_points": 30 }, { "level": "ok", "title": "IPv4 diversity", "detail": "Two or more IPv4 addresses receive full points.", "category": "network", "max_points": 35, "earned_points": 35, "lost_points": 0 }, { "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": [ "45.60.103.34", "45.60.31.34" ], "AAAA": [], "CNAME": [], "MX": [ "10 mxb-002c1802.gslb.pphosted.com.", "10 mxa-002c1802.gslb.pphosted.com." ], "TXT": [ "\"MS=ms72131568\"", "\"zapier-domain-verification-challenge=72b6728e-92b4-42ea-ab31-f8dd5d349ae6\"", "\"v=spf1 include:sans.edu._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all\"", "\"82c4sg3vsw4s7kptpvzn6806kjjp3wlr\"", "\"JI6UZuSsLXHEjD7PIBR1rWcPOqRkKRV2VwWAdhXZnLfbjhmfHHOwjMPizS78hfcgbTtjG1TaPTcdVqzgvUbyaw==\"", "\"canva-site-verification=yj_t2AOb7g6O61LEAYaAzw\"", "\"globalsign-domain-verification=4C67BEFB31EB3963BE86CC2DB3922A4C\"", "\"openai-domain-verification=dv-ud7uHGncEHoxqrKglDjUjQwT\"", "\"google-site-verification=dUSOX9p4qG75qf-UfMNmy2Z_aIw_mK-4I5FiWl5Q4co\"" ], "NS": [ "violet.ns.cloudflare.com.", "yahir.ns.cloudflare.com." ], "SOA": [ "violet.ns.cloudflare.com. dns.cloudflare.com. 2409937154 10000 2400 604800 1800" ], "CAA": [ "0 issue \"pki.goog; cansignhttpexchanges=yes\"", "0 issuewild \"comodoca.com\"", "0 issuewild \"sectigo.com\"", "0 issuewild \"digicert.com; cansignhttpexchanges=yes\"", "0 issuewild \"amazon.com\"", "0 issue \"comodoca.com\"", "0 issue \"sectigo.com\"", "0 issuewild \"globalsign.com\"", "0 iodef \"mailto:security@sans.org\"", "0 issue \"digicert.com; cansignhttpexchanges=yes\"", "0 issuewild \"ssl.com\"", "0 issue \"ssl.com\"", "0 issuewild \"pki.goog; cansignhttpexchanges=yes\"", "0 issuewild \"letsencrypt.org\"", "0 issue \"amazon.com\"", "0 issue \"letsencrypt.org\"", "0 issue \"globalsign.com\"" ], "DS": [], "DNSKEY": [], "RRSIG": [], "NSEC": [], "NSEC3": [], "SRV": [], "NAPTR": [], "TLSA": [], "SSHFP": [] }, "ipv4": [ "45.60.103.34", "45.60.31.34" ], "ipv6": [] }, "mail": { "spf": "v=spf1 include:sans.edu._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all", "dmarc": "v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email", "dkim_selector": "selector2", "dkim_host": "selector2._domainkey.sans.edu", "dkim": "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCdxStk1wzXajEsl4D/1zzMADe0CvTc6+9hNgZjd7pmGrKbTpVJLWlYe4RqcH1Zp7uDHgKr9oG3ZpkZZUNg87KQxevdk80l7TmnM0wsWR4uc1sUS+i4BY+bx1PzaOtSS03/HdmW/owvphVd7YaL14vNtNPgRz/K1OS8d0461Y1LvQIDAQAB;", "spf_analysis": { "valid": true, "lookups": 2, "final": "~all", "message": "Within the estimated limit" }, "dmarc_analysis": { "valid": true, "policy": "reject" }, "bimi": "", "mta_sts": "", "tls_rpt": "" }, "advanced": { "ptr": "", "propagation": { "consistent": true, "results": [ { "provider": "Google", "server": "8.8.8.8", "result": [ "45.60.103.34", "45.60.31.34" ], "time_ms": 95.99 }, { "provider": "Cloudflare", "server": "1.1.1.1", "result": [ "45.60.103.34", "45.60.31.34" ], "time_ms": 47.1 }, { "provider": "Quad9", "server": "9.9.9.9", "result": [ "45.60.103.34", "45.60.31.34" ], "time_ms": 75.68 }, { "provider": "OpenDNS", "server": "208.67.222.222", "result": [ "45.60.103.34", "45.60.31.34" ], "time_ms": 36.01 }, { "provider": "AdGuard", "server": "94.140.14.14", "result": [ "45.60.103.34", "45.60.31.34" ], "time_ms": 58.09 } ] } }, "ssl": { "available": true, "issuer": "GlobalSign nv-sa", "subject": "imperva.com", "valid_from": "2026-06-25T04:29:01-05:00", "valid_to": "2026-09-23T04:28:26-05:00", "days_remaining": 43, "san": [ "*.sans.edu", "*.innovation.sans.org", "*.sans.co", "*.widgetxco.org", "*.cyberleaders.sans.org", "dev.sans-foundations.com", "*.feedback.sans.org", "sans.org", "*.ranges.io", "*.giac.org", "*.sans.org", "sans.co", "sans-foundations.com", "qms.sans.org", "*.giac.net", "sans.edu", "*.uat.sans-foundations.com", "imperva.com", "*.sans-foundations.com", "giac.net", "*.dev.sans-foundations.com", "*.labs.sans.org", "widgetxco.org", "*.cyberwarriorchallenge.sans.org", "giac.org", "qa.sans-foundations.com", "*.ukcyberteam.sans.org", "content.sans.org", "uat.sans-foundations.com", "*.qa.sans-foundations.com", "ranges.io", "isc.sans.edu" ], "protocol": "TLSv1.3", "cipher": "TLS_AES_128_GCM_SHA256" }, "http": { "url": "https://www.sans.edu/", "status": "HTTP/2 200 ", "http_version": "3", "headers": { "location": "https://www.sans.edu/", "content-length": "0", "strict-transport-security": "max-age=31556926; includeSubdomains", "date": "Mon, 10 Aug 2026 16:02:09 GMT", "content-type": "text/html; charset=utf-8", "set-cookie": "incap_ses_326_1854423=LiIuBWq1yyydkcQSDjCGBAH2eWoAAAAAUVGCmCwZK8VNV6sjqXB/3w==; path=/; Domain=.sans.edu; Secure; SameSite=None", "vary": "rsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch, Accept-Encoding", "link": "; rel=preload; as=\"font\"; crossorigin=\"\"; type=\"font/woff2\", ; rel=preload; as=\"font\"; crossorigin=\"\"; type=\"font/woff2\", ; rel=preload; as=\"font\"; crossorigin=\"\"; type=\"font/woff2\", ; rel=preload; as=\"font\"; crossorigin=\"\"; type=\"font/woff2\", ; rel=preload; as=\"font\"; crossorigin=\"\"; type=\"font/woff2\", ; rel=preload; as=\"font\"; crossorigin=\"\"; type=\"font/woff2\", ; rel=preload; as=\"font\"; crossorigin=\"\"; type=\"font/woff2\", ; rel=preload; as=\"font\"; crossorigin=\"\"; type=\"font/woff2\", ; rel=preload; as=\"font\"; crossorigin=\"\"; type=\"font/woff2\", ; rel=preload; as=\"font\"; crossorigin=\"\"; type=\"font/woff2\", ; rel=preload; as=\"font\"; crossorigin=\"\"; type=\"font/woff2\"", "cache-control": "private, no-cache, no-store, max-age=0, must-revalidate", "referrer-policy": "strict-origin-when-cross-origin", "permissions-policy": "camera=(), microphone=(), geolocation=(), payment=()", "x-cdn": "Imperva", "expect-ct": "max-age=86400; enforce", "x-frame-options": "SAMEORIGIN", "x-xss-protection": "1; mode=block", "x-content-type-options": "nosniff", "x-iinfo": "17-29360532-29360540 NNNN CT(23 29 0) RT(1786377729559 61) q(0 0 1 0) r(2 2) U6" }, "security_checks": { "strict-transport-security": true, "content-security-policy": false, "x-content-type-options": true, "x-frame-options": true, "referrer-policy": true, "permissions-policy": true, "cross-origin-opener-policy": false, "cross-origin-embedder-policy": false, "cross-origin-resource-policy": false }, "server": "", "powered_by": "" }, "webpage": { "url": "https://www.sans.edu/", "title": "Cybersecurity Degree and Certificate Programs | SANS Technology Institute", "description": "The SANS Technology Institute (SANS.edu) offers career-focused undergraduate and graduate cyber security programs on the cutting edge of cybersecurity.", "success": true, "error": "", "status": 200 }, "network": { "45.60.103.34": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" }, "45.60.31.34": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" } }, "smtp": { "host": "mxb-002c1802.gslb.pphosted.com", "ports": [ { "port": 25, "open": false, "time_ms": 15050.8, "banner": "", "error": "Connection refused" }, { "port": 465, "open": false, "time_ms": 1697.5, "banner": "", "error": "Connection refused" }, { "port": 587, "open": false, "time_ms": 22.8, "banner": "", "error": "Connection refused" } ] }, "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": 87.99 }