{ "ok": true, "domain": "nps.gov", "generated_at": "2026-08-08T18:16:23-05:00", "cache": { "hit": true, "ttl": 0 }, "score": { "total": 87, "label": "Good", "categories": { "dns": 95, "mail": 90, "security": 65, "network": 85, "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": 10, "lost_points": 0, "detail": "1 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": "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": "22 day(s) remaining." }, { "category": "security", "title": "Certificate lifetime", "max_points": 10, "earned_points": 6, "lost_points": 4, "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: ec2-52-6-8-53.compute-1.amazonaws.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": 35, "lost_points": 0, "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": "ok", "title": "IPv6 (AAAA)", "detail": "1 IPv6 address(es) detected.", "category": "dns", "max_points": 10, "earned_points": 10, "lost_points": 0 }, { "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": "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": "22 day(s) remaining.", "category": "security", "max_points": 55, "earned_points": 55, "lost_points": 0 }, { "level": "warning", "title": "Certificate lifetime", "detail": "Full points require at least 30 days remaining.", "category": "security", "max_points": 10, "earned_points": 6, "lost_points": 4 }, { "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: ec2-52-6-8-53.compute-1.amazonaws.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": "ok", "title": "IPv6 connectivity", "detail": "AAAA availability.", "category": "network", "max_points": 35, "earned_points": 35, "lost_points": 0 }, { "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": [ "52.6.8.53" ], "AAAA": [ "2600:9000:20aa:0:1:983:9400:93a1" ], "CNAME": [], "MX": [ "10 nps-gov.mail.protection.outlook.com." ], "TXT": [ "\"334fjub5l60gouiv36ot0f4fr8\"", "\"v=spf1 ip4:96.127.113.23 include:_spf.nps.gov include:servers.mcsv.net -all\"", "\"perplexity-ai-domain-verification-z4mg7t=QEnaU1uq5f4xOyCwehY9Rduc8\"", "\"k3x1fbzs2816tkxpg3c76qky6c7s2x4v\"", "\"adobe-sign-verification=90b66ed10fef33178bc085fa5524b39d8bfcfbcb0da9aa7a440a60610f8513b1\"", "\"ueoq14l77f14ot5l94gnj8f73d\"", "\"openai-domain-verification=dv-ebpiMpJUr0MylOGbu0HSOvUN\"", "\"domain-verification=Fk5XTTt657ZDHZU5Tw24OpZeUHYkCmh-HoGheazSguE\"", "\"atlassian-domain-verification=BDNWwhbMkb/KgzHy3HEdJBunaWjCLLc1pTa1UNQLj/zH/f2zkBaWuLxSzT8UjnZV\"", "\"amazonses:72aXC5OVEkJqI109ds3EEaNByQb/SclYLq+pIp+JWz0=\"", "\"_qbssbwgpkm46pn8gif4416ijhafqg85\"", "\"MS=ms12791101\"", "\"BEAA-1797-3015-58D3-FA87-9BD8-3ADE-179B\"", "\"adobe-idp-site-verification=0c06fad3-cf1c-4e40-8ec6-2507879c946e\"", "\"adobe-sign-verification=ccc5d4bbde3e1c62a31238fd7983103730f30c32145a4ae2fe71264bbd3874ef\"" ], "NS": [ "ivan.ns.cloudflare.com.", "lucy.ns.cloudflare.com." ], "SOA": [ "ivan.ns.cloudflare.com. dns.cloudflare.com. 2411195350 10000 2400 604800 1800" ], "CAA": [], "DS": [ "2371 13 2 7DA20B58F7CAB7143B2657706DEE2B0068FEEAE3769D3FAA65500DEC 99764289" ], "DNSKEY": [ "257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+ KkxLbxILfDLUT0rAK9iUzy1L53eKGQ==", "256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8 KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA==" ], "RRSIG": [], "NSEC": [ "\\000.nps.gov. A NS SOA PTR HINFO MX TXT AAAA LOC SRV NAPTR CERT SSHFP RRSIG NSEC DNSKEY TLSA SMIMEA HIP CDS CDNSKEY OPENPGPKEY SVCB HTTPS URI CAA" ], "NSEC3": [], "SRV": [], "NAPTR": [], "TLSA": [], "SSHFP": [] }, "ipv4": [ "52.6.8.53" ], "ipv6": [ "2600:9000:20aa:0:1:983:9400:93a1" ] }, "mail": { "spf": "v=spf1 ip4:96.127.113.23 include:_spf.nps.gov include:servers.mcsv.net -all", "dmarc": "v=DMARC1;p=reject;rua=mailto:dmarc_reports@doi.gov,mailto:reports@dmarc.cyber.dhs.gov,mailto:dmarc_agg@valigov.email", "dkim_selector": "mail", "dkim_host": "mail._domainkey.nps.gov", "dkim": "v=DKIM1; k=rsa; h=sha256; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDqoO5syFukWG/mGwRZqXEJWhA99iHBsg75N0OeMXG3IWnX28cOBumgzqtQE5bHUMCeY0PX9Mn8GiQuQKHZ3iPCJVKYbANOh2HFMRiovWmviPJB8BO1wZ+f82RafRVLPEE3JGagmiJkrhE2RjXvvP0vYlaChYWbuy2SnWSeOhzayQIDAQAB", "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": "ec2-52-6-8-53.compute-1.amazonaws.com", "propagation": { "consistent": true, "results": [ { "provider": "Google", "server": "8.8.8.8", "result": [ "52.6.8.53" ], "time_ms": 55.05 }, { "provider": "Cloudflare", "server": "1.1.1.1", "result": [ "52.6.8.53" ], "time_ms": 37.69 }, { "provider": "Quad9", "server": "9.9.9.9", "result": [ "52.6.8.53" ], "time_ms": 36.68 }, { "provider": "OpenDNS", "server": "208.67.222.222", "result": [ "52.6.8.53" ], "time_ms": 37.82 }, { "provider": "AdGuard", "server": "94.140.14.14", "result": [ "52.6.8.53" ], "time_ms": 50.82 } ] } }, "ssl": { "available": true, "issuer": "DigiCert Inc", "subject": "*.nps.gov", "valid_from": "2025-07-29T19:00:00-05:00", "valid_to": "2026-08-30T18:59:59-05:00", "days_remaining": 22, "san": [ "*.nps.gov", "nps.gov", "www.nps.gov" ], "protocol": "TLSv1.2", "cipher": "ECDHE-RSA-AES256-GCM-SHA384" }, "http": { "url": "https://www.nps.gov/index.htm", "status": "HTTP/2 200 ", "http_version": "3", "headers": { "date": "Fri, 31 Jul 2026 14:25:52 GMT", "server": "NPS.gov", "strict-transport-security": "max-age=31536000; includeSubDomains; preload", "location": "/index.htm", "content-type": "text/html;charset=UTF-8", "content-length": "70628", "x-cache": "Hit from cloudfront", "via": "1.1 9460f752a7d3e3c136c992fe24fc77e2.cloudfront.net (CloudFront)", "x-amz-cf-pop": "ORD56-P5", "x-amz-cf-id": "JZKFRov08MVbicm5gnlWxjmj52wVxAk5ugtPj-lSdiY1ZuNL8a8tDw==", "pip": "(null)", "pragma": "no-cache", "access-control-allow-origin": "*", "p3p": "policyref=\"https://www.nps.gov/w3c/p3p.xml\", CP=\"ALL DSP COR OTP PUB BUS OTC\"", "vary": "Accept-Encoding", "age": "723022" }, "security_checks": { "strict-transport-security": true, "content-security-policy": false, "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": "NPS.gov", "powered_by": "" }, "webpage": { "url": "https://www.nps.gov/index.htm", "title": "NPS.gov Homepage (U.S. National Park Service)", "description": "The National Park Service cares for special places saved by the American people so that all may experience our heritage.", "success": true, "error": "", "status": 206 }, "network": { "52.6.8.53": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" } }, "smtp": { "host": "nps-gov.mail.protection.outlook.com", "ports": [ { "port": 25, "open": false, "time_ms": 24.7, "banner": "", "error": "Network is unreachable" }, { "port": 465, "open": false, "time_ms": 4053.1, "banner": "", "error": "Connection timed out" }, { "port": 587, "open": false, "time_ms": 4030.6, "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": 97.97 }