{ "ok": true, "domain": "fastly.net", "generated_at": "2026-08-10T08:39:38-05:00", "cache": { "hit": true, "ttl": 0 }, "score": { "total": 84, "label": "Good", "categories": { "dns": 85, "mail": 90, "security": 73, "network": 70, "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": "4 IPv4 address(es) detected." }, { "category": "dns", "title": "IPv6 (AAAA)", "max_points": 10, "earned_points": 10, "lost_points": 0, "detail": "4 IPv6 address(es) detected." }, { "category": "dns", "title": "Name server redundancy", "max_points": 20, "earned_points": 20, "lost_points": 0, "detail": "4 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": "26 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": 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": 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": "4 IPv4 address(es) detected.", "category": "dns", "max_points": 30, "earned_points": 30, "lost_points": 0 }, { "level": "ok", "title": "IPv6 (AAAA)", "detail": "4 IPv6 address(es) detected.", "category": "dns", "max_points": 10, "earned_points": 10, "lost_points": 0 }, { "level": "ok", "title": "Name server redundancy", "detail": "4 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": "26 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": "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": "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": [ "151.101.129.6", "151.101.193.6", "151.101.65.6", "151.101.1.6" ], "AAAA": [ "2a04:4e42::262", "2a04:4e42:200::262", "2a04:4e42:400::262", "2a04:4e42:600::262" ], "CNAME": [], "MX": [ "20 alt1.aspmx.l.google.com.", "10 aspmx.l.google.com." ], "TXT": [ "\"v=spf1 -all\"", "\"_globalsign-domain-verification=hxcKdBZZzwGAaejvvU8jQ9BRrd_NgOWG_NnMnrassn\"" ], "NS": [ "ns4.fastly.net.", "ns3.fastly.net.", "ns2.fastly.net.", "ns1.fastly.net." ], "SOA": [ "ns1.fastly.net. hostmaster.fastly.com. 2017052201 3600 600 604800 30" ], "CAA": [ "0 issue \"certainly.com;validationmethods=dns-01\"", "0 iodef \"mailto:security@fastly.com\"", "0 issue \"letsencrypt.org;validationmethods=dns-01\"", "0 issue \"globalsign.com\"" ], "DS": [], "DNSKEY": [], "RRSIG": [], "NSEC": [], "NSEC3": [], "SRV": [], "NAPTR": [], "TLSA": [], "SSHFP": [] }, "ipv4": [ "151.101.129.6", "151.101.193.6", "151.101.65.6", "151.101.1.6" ], "ipv6": [ "2a04:4e42::262", "2a04:4e42:200::262", "2a04:4e42:400::262", "2a04:4e42:600::262" ] }, "mail": { "spf": "v=spf1 -all", "dmarc": "v=DMARC1; p=quarantine; rua=mailto:mailauth-reports@fastly.com,mailto:dmarc_agg@vali.email;", "dkim_selector": "google", "dkim_host": "google._domainkey.fastly.net", "dkim": "v=DKIM1; k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmA8/PPS/hTpEvYQeaBdNE4QbqiiQ0S7HIsjOX6sOLFM6FAN0mwn4pmUANhUxYKcwsbemtMYFyBSaiFTJMO6L6j8eHjIJTz2vPsGGoVl5CC6yOu0BkFwuV8tNviIWlDzifusD2CjHZCp0xZ0cs8YI9arzBYesPtWVR7g1L7IJuYLlDqxQ1HhgML3//GzlwS2xAsgS673vWD7ZD0/QUFsBWU74QPtI0E/B+34FHJ2rqICGugUseLVUvoZoUIIVGfSfoJ1bpXAwjulIMdApPswnZe7WkvR34cPo/KJuq8S1bRfntwEM6s1iuv3qIldB0JOthGYfpjc3m0SoSmBM96rGjQIDAQAB", "spf_analysis": { "valid": true, "lookups": 0, "final": "-all", "message": "Within the estimated limit" }, "dmarc_analysis": { "valid": true, "policy": "quarantine" }, "bimi": "", "mta_sts": "", "tls_rpt": "" }, "advanced": { "ptr": "", "propagation": { "consistent": true, "results": [ { "provider": "Google", "server": "8.8.8.8", "result": [ "151.101.1.6", "151.101.129.6", "151.101.193.6", "151.101.65.6" ], "time_ms": 39.2 }, { "provider": "Cloudflare", "server": "1.1.1.1", "result": [ "151.101.1.6", "151.101.129.6", "151.101.193.6", "151.101.65.6" ], "time_ms": 19.4 }, { "provider": "Quad9", "server": "9.9.9.9", "result": [ "151.101.1.6", "151.101.129.6", "151.101.193.6", "151.101.65.6" ], "time_ms": 23.43 }, { "provider": "OpenDNS", "server": "208.67.222.222", "result": [ "151.101.1.6", "151.101.129.6", "151.101.193.6", "151.101.65.6" ], "time_ms": 26.14 }, { "provider": "AdGuard", "server": "94.140.14.14", "result": [ "151.101.1.6", "151.101.129.6", "151.101.193.6", "151.101.65.6" ], "time_ms": 40.84 } ] } }, "ssl": { "available": true, "issuer": "Certainly", "subject": "fastly.net", "valid_from": "2026-08-07T02:13:28-05:00", "valid_to": "2026-09-06T02:13:27-05:00", "days_remaining": 26, "san": [ "fastly.net", "www.fastly.net" ], "protocol": "TLSv1.2", "cipher": "ECDHE-RSA-AES128-GCM-SHA256" }, "http": { "url": "https://www.fastly.com/", "status": "HTTP/2 200 ", "http_version": "3", "headers": { "connection": "close", "content-length": "668119", "server": "Artisanal bits", "retry-after": "0", "location": "https://www.fastly.com/", "accept-ranges": "bytes", "date": "Mon, 10 Aug 2026 13:39:30 GMT", "via": "1.1 varnish", "x-served-by": "cache-sjc1000095-SJC, cache-sjc1000098-SJC, cache-stl760021-STL", "x-cache": "MISS, HIT, HIT", "x-cache-hits": "0, 144, 0", "content-type": "text/html", "etag": "\"a1158040141afba20843f285742bd7e8\"", "x-timer": "S1786369170.080009,VS0,VE1", "vary": "Accept-Encoding", "x-xss-protection": "1; mode=block", "x-frame-options": "DENY", "x-content-type-options": "nosniff", "cache-control": "max-age=0, must-revalidate", "strict-transport-security": "max-age=31536000", "alt-svc": "h3=\":443\";ma=86400,h3-29=\":443\";ma=86400,h3-27=\":443\";ma=86400" }, "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": "Artisanal bits", "powered_by": "" }, "webpage": { "url": "https://www.fastly.com/", "title": "Powering the best of the internet | Fastly", "description": "Fastly's edge cloud platform delivers faster, safer, and more scalable sites and apps to customers. Elevate your edge CDN, video delivery, security, and more.", "success": true, "error": "", "status": 206 }, "network": { "151.101.129.6": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" }, "151.101.193.6": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" }, "151.101.65.6": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" }, "151.101.1.6": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" } }, "smtp": { "host": "alt1.aspmx.l.google.com", "ports": [ { "port": 25, "open": false, "time_ms": 0.8, "banner": "", "error": "Network is unreachable" }, { "port": 465, "open": false, "time_ms": 4018.3, "banner": "", "error": "Connection timed out" }, { "port": 587, "open": false, "time_ms": 4018.8, "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": 105.84 }