{ "ok": true, "domain": "gps.gov", "generated_at": "2026-08-11T22:23:33-05:00", "cache": { "hit": true, "ttl": 0 }, "score": { "total": 82, "label": "Good", "categories": { "dns": 85, "mail": 90, "security": 77, "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": "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": 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": "38 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": 12, "lost_points": 23, "detail": "3 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": "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": "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": "38 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": "3 of 9 evaluated headers detected.", "category": "security", "max_points": 35, "earned_points": 12, "lost_points": 23 }, { "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": [ "137.75.88.52", "137.75.88.7" ], "AAAA": [], "CNAME": [], "MX": [ "10 ASPMX.L.GOOGLE.COM.", "20 ALT1.ASPMX.L.GOOGLE.COM.", "40 ALT3.ASPMX.L.GOOGLE.COM.", "20 ALT2.ASPMX.L.GOOGLE.COM.", "40 ALT4.ASPMX.L.GOOGLE.COM." ], "TXT": [ "\"v=spf1 ip4:140.172.0.0/16 ip4:140.208.0.0/16 ip4:\" \"140.90.0.0/16 include:_spf.google.com include:spf0.noaa.gov include:\" \"spf1.noaa.gov include:spf2.noaa.gov include:spf3.noaa.gov include:\" \"spf4.noaa.gov -all\"", "\"google-site-verification=pyuFvBt6rQZB2lnrEc5wZcuMD1vfSCyoKR-MjVQ1Itw\"" ], "NS": [ "ns-02.noaa.gov.", "ns-03.noaa.gov.", "ns-01.noaa.gov." ], "SOA": [ "dns02.woc.noaa.gov. hostmaster.noaa.gov. 1785981675 10800 3600 604800 86400" ], "CAA": [], "DS": [ "46250 8 2 71CA79F939FEFBD889208EF1E26F0698C60F8BF289C24A0B9E37C04F AC886C9A" ], "DNSKEY": [ "257 3 8 AwEAAZuLoAZy11uLXb8LgPI+G8UxzuCA6TGeobaIMUHJqEF239f1MrFE 3ZFvF3/dTf+qlXuN4lpOX0Vp7r+5pwaK8eEthversXUWMWC4kcZbNVUW YaCLh1H5jDIRyByPUMRnyeU5oAmyBVLhvNIHz2eakDdr+qKXWAXGcaty Jles2ESfQwzfeCv5RFJlAzzCkSo10Ld9QjgOnwpnWANc15IuSENd7DLG +CBxQXGAc5CiufDhX5b9esLaXF34UcM4SyzAahCHgDXNIcLOsHgOwvno VWd0VUVWT3EM16q4ANwxS6kTOHCkfLzOLJ9b/+ADm6p/qv8AacBok0A7 VmKW1w8t/hU=", "256 3 8 AwEAAclC9cGpRyZgvFdhBezqPpSrdyYnIqkMztzl0dckt8DsZaymy2FK C8yLI1yhvV6HTpsu6J6KbHcOCDFEvyH6x4gtBfujOVUX865Xq7vwbGY+ gGOJfo7NrnkhA2ESIThGuEyUII8o1Jxp+hVVUsAuCeBTNFWeJCnSq7sT VywuqmFF" ], "RRSIG": [ "A 8 2 300 20260905010115 20260806010115 48981 gps.gov. s8o9ETjISnNJcoKMYCgKgRagoBUETmpsUnFoUH6Vs0iEx+9Fhw4Gw0mg bkX+o3nRwUx6KLF65jDTYv+QvaO5mP23csyEeOKbefF1av8A6lYJyIje Xkm8JXYe2OCc2r+7tk2sNs9ZkAw8Ey7s+w8eImxgZyLzW1I1+KGH+0MK V+8=", "SOA 8 2 86400 20260905010115 20260806010115 48981 gps.gov. vB5mKFZmmK6ycZDh4+h95jI8uCLPUIF6z5ycnn1Czq7AgnOdP0x4f2K9 yAWCcdreyG7Ts6P/sUuHf9e7rQPBx5YkgyFJyAIl+iZjSlOsJeJ6o00b 26gy+iiNsuQqlQrnfoEuyKvOI1cOVkapySjXvXHz4spuaTRtlRCOdxsy Cg0=", "NSEC 8 2 86400 20260905010115 20260806010115 48981 gps.gov. ReP4Q7Khnyq3okFWeL+UVQ+276TXPOwSe/Iz9XVNQRjQ0/ao0Wa9yvr2 2TD3B5/LILYliXTkER4lilJmgRHQJfsMj0n0ev3AHCNmUHeuVCV/vls6 +ztstqWp0ImbHQ6K7p8GaoqmSbj4F0U9x34MGoj1k15o+YnL/Aw7Ktbr JRU=", "DS 13 2 3600 20260813042321 20260811022321 35496 gov. ogRiqldLbZb/JogMTVLDpuAqe2zDkDA12o9GF6cn+ED6PpD80gjyFmT+ AHpq1XHxdwdeVD+vaK3TCEp1uXzstA==" ], "NSEC": [ "_59df9d5452a6214317cc9f667432ee5b.gps.gov. A NS SOA MX TXT RRSIG NSEC DNSKEY" ], "NSEC3": [], "SRV": [], "NAPTR": [], "TLSA": [], "SSHFP": [] }, "ipv4": [ "137.75.88.52", "137.75.88.7" ], "ipv6": [] }, "mail": { "spf": "v=spf1 ip4:140.172.0.0/16 ip4:140.208.0.0/16 ip4:140.90.0.0/16 include:_spf.google.com include:spf0.noaa.gov include:spf1.noaa.gov include:spf2.noaa.gov include:spf3.noaa.gov include:spf4.noaa.gov -all", "dmarc": "v=DMARC1; p=reject; rua=mailto:dmarc-reports@doc.gov,mailto:reports@dmarc.cyber.dhs.gov", "dkim_selector": "google", "dkim_host": "google._domainkey.gps.gov", "dkim": "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAgPqFMwqhkqu4GMJJmLyRB/4uufh1q8vXFif3EiZB5c6qb8vZooKFgQTKaGb7BMtRxEVYpt0qP18sSVLxsYFd09J0vh5KxVzVICra2E5lk/4nK7+g2eIqjCbek4gbUyMCmWnCnDrsRYrMJyCpHw0ZAxK+xrfATqkwHnzY1hK/kU4Xz6+6co9GJA+cgjSD9kWl98JPMEEMMstmx2b7QDx0T/dNNMI3AWX7mvCUB1N7COnJ2qtII3OtGhUu9HZbTcYIjJEEbTunkbHFHsQCONZB1ipqHnrQtLNRvLEegATfm0Jl8mzZVYVYbRbco0nfVO+Lq9/53s5dUY75BW1b4PyogQIDAQAB", "spf_analysis": { "valid": true, "lookups": 6, "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": [ "137.75.88.52", "137.75.88.7" ], "time_ms": 152.57 }, { "provider": "Cloudflare", "server": "1.1.1.1", "result": [ "137.75.88.52", "137.75.88.7" ], "time_ms": 119.31 }, { "provider": "Quad9", "server": "9.9.9.9", "result": [ "137.75.88.52", "137.75.88.7" ], "time_ms": 168.93 }, { "provider": "OpenDNS", "server": "208.67.222.222", "result": [ "137.75.88.52", "137.75.88.7" ], "time_ms": 174.05 }, { "provider": "AdGuard", "server": "94.140.14.14", "result": [ "137.75.88.52", "137.75.88.7" ], "time_ms": 256.49 } ] } }, "ssl": { "available": true, "issuer": "Let's Encrypt", "subject": "gps.gov", "valid_from": "2026-06-20T23:59:18-05:00", "valid_to": "2026-09-18T23:59:17-05:00", "days_remaining": 38, "san": [ "gps.gov" ], "protocol": "TLSv1.2", "cipher": "ECDHE-RSA-AES128-GCM-SHA256" }, "http": { "url": "https://www.gps.gov/", "status": "HTTP/2 200 ", "http_version": "3", "headers": { "date": "Wed, 12 Aug 2026 03:23:24 GMT", "server": "Apache/2.4.58 (Ubuntu)", "strict-transport-security": "max-age=31536000", "location": "https://www.gps.gov/", "content-type": "text/html; charset=UTF-8", "content-length": "54436", "cache-control": "must-revalidate, no-cache, private", "x-drupal-dynamic-cache": "HIT", "content-language": "en", "x-content-type-options": "nosniff", "x-frame-options": "SAMEORIGIN", "expires": "Sun, 19 Nov 1978 05:00:00 GMT", "x-generator": "Drupal 11 (https://www.drupal.org)", "x-drupal-cache": "HIT", "vary": "Accept-Encoding", "x-cache": "Miss from cloudfront", "via": "1.1 5de5e66003332bec09dff893114ac06c.cloudfront.net (CloudFront)", "x-amz-cf-pop": "AMS1-P1", "x-amz-cf-id": "rAn7Kb9d2Q08Xf3aIj6WIOr5n6b6MIfXSribUGZJ1wge_czLSiC68w==" }, "security_checks": { "strict-transport-security": true, "content-security-policy": false, "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": "Apache/2.4.58 (Ubuntu)", "powered_by": "" }, "webpage": { "url": "https://www.gps.gov/", "title": "Home | GPS.gov", "description": "", "success": true, "error": "", "status": 200 }, "network": { "137.75.88.52": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" }, "137.75.88.7": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" } }, "smtp": { "host": "ASPMX.L.GOOGLE.COM", "ports": [ { "port": 25, "open": false, "time_ms": 0.9, "banner": "", "error": "Network is unreachable" }, { "port": 465, "open": false, "time_ms": 4020, "banner": "", "error": "Connection timed out" }, { "port": 587, "open": false, "time_ms": 4020.8, "banner": "", "error": "Connection timed out" } ] }, "visitor": { "ip": "216.73.216.212", "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": 82.4 }