{ "ok": true, "domain": "signup.com", "generated_at": "2026-08-10T18:31:14-05:00", "cache": { "hit": true, "ttl": 0 }, "score": { "total": 84, "label": "Good", "categories": { "dns": 75, "mail": 90, "security": 81, "network": 65, "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": "6 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": "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": "71 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: ec2-54-243-137-103.compute-1.amazonaws.com" }, { "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": "6 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": "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": "71 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: ec2-54-243-137-103.compute-1.amazonaws.com", "category": "network", "max_points": 30, "earned_points": 30, "lost_points": 0 }, { "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": [ "54.243.137.103", "44.214.130.45" ], "AAAA": [], "CNAME": [], "MX": [ "10 aspmx2.googlemail.com.", "1 aspmx.l.google.com.", "5 alt2.aspmx.l.google.com.", "10 aspmx3.googlemail.com.", "5 alt1.aspmx.l.google.com." ], "TXT": [ "\"yahoo-verification-key=0OoEEKaoACaTCPbi+oJDhk7COPJ43aVe/uQC1SVvJsg=\"", "\"facebook-domain-verification=zlevm4c81tzge2ckex4c9dal0bugku\"", "\"00906776\"", "\"v=spf1 mx include:_spf.google.com include:email-od.com ip4:142.0.176.0/20 ~all\"" ], "NS": [ "ns61.constellix.net.", "ns51.constellix.net.", "ns31.constellix.com.", "ns41.constellix.net.", "ns11.constellix.com.", "ns21.constellix.com." ], "SOA": [ "ns11.constellix.com. dns.constellix.com. 2015010161 43200 3600 1209600 180" ], "CAA": [ "0 issue \"amazon.com\"", "0 iodef \"mailto:production@signup.com\"" ], "DS": [], "DNSKEY": [], "RRSIG": [], "NSEC": [], "NSEC3": [], "SRV": [], "NAPTR": [], "TLSA": [], "SSHFP": [] }, "ipv4": [ "54.243.137.103", "44.214.130.45" ], "ipv6": [] }, "mail": { "spf": "v=spf1 mx include:_spf.google.com include:email-od.com ip4:142.0.176.0/20 ~all", "dmarc": "v=DMARC1; p=none; sp=none; rua=mailto:re+v5p8nq29aj3@inbound.dmarcdigests.com; ruf=mailto:forensic@signup.com; aspf=r; pct=100", "dkim_selector": "google", "dkim_host": "google._domainkey.signup.com", "dkim": "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAibi7Fo4qANLIN4GBaw+xqJs5JH/Dr9x1lBVraaO2UTnsfB/eVgTJNIT+VB7xUR5mLMFyN/HCZqMmzeFBk84uJifSHje2/so6b/HXL5r6GKa910PP1Pdy2ZIw7DxVt0PqHZHK088c+2zPiJVN/cqM3aiG5ZjjGXfnE94jYMX6BjGyFmFxDJUqWIYxkKQwr6Y0wZMjK5a1xlh3m5Zd0 MCZigeWx/Ty4NZRteJs5IqXg86mGfEvK+enqIvHxVl5sPcTD4+OLv0ryWpgHDS22A4p5Qc3D7Spi3vvkVr0ptaMjmMYnEOdqdGaEteYdPydRufVO874OGCb/o9gOIhVlCSw/QIDAQAB", "spf_analysis": { "valid": true, "lookups": 3, "final": "~all", "message": "Within the estimated limit" }, "dmarc_analysis": { "valid": true, "policy": "none" }, "bimi": "", "mta_sts": "", "tls_rpt": "" }, "advanced": { "ptr": "ec2-54-243-137-103.compute-1.amazonaws.com", "propagation": { "consistent": true, "results": [ { "provider": "Google", "server": "8.8.8.8", "result": [ "44.214.130.45", "54.243.137.103" ], "time_ms": 49.15 }, { "provider": "Cloudflare", "server": "1.1.1.1", "result": [ "44.214.130.45", "54.243.137.103" ], "time_ms": 32.53 }, { "provider": "Quad9", "server": "9.9.9.9", "result": [ "44.214.130.45", "54.243.137.103" ], "time_ms": 35.39 }, { "provider": "OpenDNS", "server": "208.67.222.222", "result": [ "44.214.130.45", "54.243.137.103" ], "time_ms": 45.01 }, { "provider": "AdGuard", "server": "94.140.14.14", "result": [ "44.214.130.45", "54.243.137.103" ], "time_ms": 63.92 } ] } }, "ssl": { "available": true, "issuer": "Amazon", "subject": "signup.com", "valid_from": "2026-04-05T19:00:00-05:00", "valid_to": "2026-10-20T18:59:59-05:00", "days_remaining": 71, "san": [ "signup.com", "vols.pt", "support.signup.com", "www.signup.com", "mobileapp.signup.com", "blog.signup.com", "volunteerspot.com", "mobileapp.volunteerspot.com", "www.volunteerspot.com" ], "protocol": "TLSv1.3", "cipher": "TLS_AES_128_GCM_SHA256" }, "http": { "url": "https://signup.com/", "status": "HTTP/2 200 ", "http_version": "3", "headers": { "date": "Mon, 10 Aug 2026 23:31:06 GMT", "content-type": "text/html; charset=utf-8", "server": "Apache", "cache-control": "max-age=0, private, must-revalidate", "vary": "Accept,X-Forwarded-Proto,User-Agent", "strict-transport-security": "max-age=31556952", "referrer-policy": "strict-origin-when-cross-origin", "x-permitted-cross-domain-policies": "none", "x-xss-protection": "1; mode=block", "x-request-id": "fc64aa3e-33c9-4d52-8496-1e6f19c41780", "x-download-options": "noopen", "x-frame-options": "SAMEORIGIN", "x-runtime": "0.169738", "x-content-type-options": "nosniff", "x-powered-by": "Phusion Passenger(R) 6.0.18", "set-cookie": "SERVERID=; Expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/", "etag": "W/\"e3b6510791511e0094d045384566f7a6\"", "status": "200 OK" }, "security_checks": { "strict-transport-security": true, "content-security-policy": false, "x-content-type-options": true, "x-frame-options": true, "referrer-policy": true, "permissions-policy": false, "cross-origin-opener-policy": false, "cross-origin-embedder-policy": false, "cross-origin-resource-policy": false }, "server": "Apache", "powered_by": "Phusion Passenger(R) 6.0.18" }, "webpage": { "url": "https://signup.com/", "title": "Easiest Online SignUp Sheets | SignUp.com", "description": "Save time with online SignUp sheets and free coordination solutions for schools, churches, teams, nonprofits and businesses.", "success": true, "error": "", "status": 206 }, "network": { "54.243.137.103": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" }, "44.214.130.45": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" } }, "smtp": { "host": "aspmx2.googlemail.com", "ports": [ { "port": 25, "open": false, "time_ms": 22.9, "banner": "", "error": "Network is unreachable" }, { "port": 465, "open": false, "time_ms": 4043.3, "banner": "", "error": "Connection timed out" }, { "port": 587, "open": false, "time_ms": 4021, "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": 79.56 }