{ "ok": true, "domain": "ufmg.br", "generated_at": "2026-08-09T03:52:14-05:00", "cache": { "hit": true, "ttl": 0 }, "score": { "total": 81, "label": "Good", "categories": { "dns": 70, "mail": 90, "security": 81, "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": "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": 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": "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": "131 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": 16, "lost_points": 19, "detail": "4 of 9 evaluated headers detected." }, { "category": "network", "title": "PTR reverse DNS", "max_points": 30, "earned_points": 30, "lost_points": 0, "detail": "PTR: kc01a216.dti.ufmg.br" }, { "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": "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": "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": "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": "131 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": "4 of 9 evaluated headers detected.", "category": "security", "max_points": 35, "earned_points": 16, "lost_points": 19 }, { "level": "ok", "title": "PTR reverse DNS", "detail": "PTR: kc01a216.dti.ufmg.br", "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": [ "150.164.251.216" ], "AAAA": [], "CNAME": [], "MX": [ "10 mail-interno-pmg.ufmg.br.", "90 mail-pmg.ufmg.br." ], "TXT": [ "\"v=spf1 ip4:150.164.64.0/24 ip4:150.164.251.0/24 ip4:150.164.250.0/24 ip6:2804:1f4a:cec::/48 -all\"", "\"_globalsign-domain-verification=zSduOAnxmptd2GELa0U3_w8ESQ8FoIVCfVuuwK4l7c\"", "\"unxpose-verification=3f1b1c78-2753-4d6a-b855-529a882310b2\"" ], "NS": [ "dns01.rede.ufmg.br.", "gerencia.rede.ufmg.br.", "dns02.rede.ufmg.br." ], "SOA": [ "gerencia.rede.ufmg.br. suporte.dti.ufmg.br. 2026063003 1200 3600 1209600 600" ], "CAA": [], "DS": [], "DNSKEY": [ "257 3 13 9qgefPz0vvu1cwXdb61Bl40zqCvV8tY46OHxYkrBt4HRzlgaUBBkJ+5m huNVyhuCQHfgKbxo1Ydx7U8YzZDNTg==" ], "RRSIG": [ "TXT 13 2 3600 20260820000000 20260730000000 54010 ufmg.br. 0KKXbiimFOg0SgPDDKsYbbsjARXJo63H1w34LjY0oybr/pR9UFIXEhX2 VhbW/cKtBCV7Iypo2bpMpggNoMEGEg==", "A 13 2 3600 20260820000000 20260730000000 54010 ufmg.br. Rt4EBpEP6umGDOQUIOwJTpVKHI2epq1aGmJ3RN6qAVTDhUYbgCHf7ZDb Z6VgGCtvQY5OoXNgLtNG9+ycj9A9qg==", "MX 13 2 86400 20260820000000 20260730000000 54010 ufmg.br. YkQJfQmOzSDmk2kSzh4O6WOdP70A8lJ/8xLnO2MzGNz1J28oSQ7H7hXl Kn6awZddYfY6fRsUC+dxCn74GFtxtQ==" ], "NSEC": [ "_dmarc.ufmg.br. A NS SOA MX TXT RRSIG NSEC DNSKEY" ], "NSEC3": [], "SRV": [], "NAPTR": [], "TLSA": [], "SSHFP": [] }, "ipv4": [ "150.164.251.216" ], "ipv6": [] }, "mail": { "spf": "v=spf1 ip4:150.164.64.0/24 ip4:150.164.251.0/24 ip4:150.164.250.0/24 ip6:2804:1f4a:cec::/48 -all", "dmarc": "v=DMARC1; p=none; sp=none; aspf=r; adkim=r; pct=100; rua=mailto:dmarc@ufmg.br; ruf=mailto:dmarc@ufmg.br; fo=1", "dkim_selector": "mail", "dkim_host": "mail._domainkey.ufmg.br", "dkim": "v=DKIM1; k=rsa; s=email; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsKSsQ6XZvH2Rz9ngOgm+E2Whu5OvJHafaI7wqUKzmujK0GqkBorfX8ZhhComp4HKvG3AjbER1F2G0lTp7cXaBP7+3ZEGu8RkZ4D8Ir1UvI8POsFt8HkSCmBrkejfxbi+4gZH+EaXpHm3lLzvKR498V412cXquQBAI+SxbLre0X+bsBNfUSyHaz8JPWtFxkMqX/ITafWwkpI1TY2kCCaNF+wKSLL1dzUhbPDcLLWJ36QhidRXJMeock9jVhWUWt44nn0NbEuPG7Tl0H3PKWisMBCkoPAo4bwEYuga+/ZD6RHRqcJUsUA8cLqo1B9diyeEiZ4hoES9I64xNU9Ejtp5vwIDAQAB", "spf_analysis": { "valid": true, "lookups": 0, "final": "-all", "message": "Within the estimated limit" }, "dmarc_analysis": { "valid": true, "policy": "none" }, "bimi": "", "mta_sts": "", "tls_rpt": "" }, "advanced": { "ptr": "kc01a216.dti.ufmg.br", "propagation": { "consistent": true, "results": [ { "provider": "Google", "server": "8.8.8.8", "result": [ "150.164.251.216" ], "time_ms": 40.98 }, { "provider": "Cloudflare", "server": "1.1.1.1", "result": [ "150.164.251.216" ], "time_ms": 350.88 }, { "provider": "Quad9", "server": "9.9.9.9", "result": [ "150.164.251.216" ], "time_ms": 187.83 }, { "provider": "OpenDNS", "server": "208.67.222.222", "result": [ "150.164.251.216" ], "time_ms": 847.88 }, { "provider": "AdGuard", "server": "94.140.14.14", "result": [ "150.164.251.216" ], "time_ms": 47.77 } ] } }, "ssl": { "available": true, "issuer": "REDE NACIONAL DE ENSINO E PESQUISA - RNP", "subject": "*.ufmg.br", "valid_from": "2026-06-02T05:51:26-05:00", "valid_to": "2026-12-18T04:51:26-06:00", "days_remaining": 131, "san": [ "*.ufmg.br", "ufmg.br" ], "protocol": "TLSv1.3", "cipher": "TLS_AES_256_GCM_SHA384" }, "http": { "url": "https://www.ufmg.br/", "status": "HTTP/2 200 ", "http_version": "3", "headers": { "date": "Sun, 09 Aug 2026 08:52:04 GMT", "content-type": "text/html; charset=UTF-8", "content-length": "162", "location": "https://www.ufmg.br", "strict-transport-security": "max-age=15724800; includeSubDomains", "x-powered-by": "PHP/8.5.8", "link": "; rel=\"https://api.w.org/\"", "content-security-policy": "upgrade-insecure-requests;", "x-content-type-options": "nosniff", "x-frame-options": "SAMEORIGIN" }, "security_checks": { "strict-transport-security": true, "content-security-policy": true, "x-content-type-options": true, "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": "PHP/8.5.8" }, "webpage": { "url": "https://www.ufmg.br/", "title": "Universidade Federal de Minas Gerais – Liderança regional e nacional em ensino superior gratuito, extensão, cultura, pesquisa científica e geração de patentes em todas as áreas do conhecimento", "description": "Liderança regional e nacional em ensino superior gratuito, extensão, cultura, pesquisa científica e geração de patentes em todas as áreas do conhecimento", "success": true, "error": "", "status": 200 }, "network": { "150.164.251.216": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" } }, "smtp": { "host": "mail-interno-pmg.ufmg.br", "ports": [ { "port": 25, "open": false, "time_ms": 138.9, "banner": "", "error": "Connection refused" }, { "port": 465, "open": false, "time_ms": 4020.2, "banner": "", "error": "Connection timed out" }, { "port": 587, "open": false, "time_ms": 4020.8, "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": 104.6 }