{ "ok": true, "domain": "techstars.com", "generated_at": "2026-08-10T04:04:51-05:00", "cache": { "hit": true, "ttl": 0 }, "score": { "total": 81, "label": "Good", "categories": { "dns": 60, "mail": 90, "security": 84, "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": "4 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": "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": 0, "lost_points": 5, "detail": "Certificate authority restriction." }, { "category": "dns", "title": "DNS propagation", "max_points": 10, "earned_points": 0, "lost_points": 10, "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": "215 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": 19, "lost_points": 16, "detail": "5 of 9 evaluated headers detected." }, { "category": "network", "title": "PTR reverse DNS", "max_points": 30, "earned_points": 30, "lost_points": 0, "detail": "PTR: server-108-156-107-31.ord56.r.cloudfront.net" }, { "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": "4 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": "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": "error", "title": "CAA policy", "detail": "Certificate authority restriction.", "category": "dns", "max_points": 5, "earned_points": 0, "lost_points": 5 }, { "level": "error", "title": "DNS propagation", "detail": "Agreement between public resolvers.", "category": "dns", "max_points": 10, "earned_points": 0, "lost_points": 10 }, { "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": "215 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": "5 of 9 evaluated headers detected.", "category": "security", "max_points": 35, "earned_points": 19, "lost_points": 16 }, { "level": "ok", "title": "PTR reverse DNS", "detail": "PTR: server-108-156-107-31.ord56.r.cloudfront.net", "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": [ "108.156.107.31", "108.156.107.97", "108.156.107.10", "108.156.107.51" ], "AAAA": [], "CNAME": [], "MX": [ "50 aspmx3.googlemail.com.", "10 aspmx.l.google.com.", "20 alt1.aspmx.l.google.com.", "40 aspmx2.googlemail.com.", "30 alt2.aspmx.l.google.com." ], "TXT": [ "\"google-site-verification=AW0tiOVeeLFCIUOcYOfiOKrA6dqLl999rgL4ONcXg24\"", "\"ZOOM_verify_f3SMmKgBQFazOef3bZRXsA\"", "\"anthropic-domain-verification-fb3b1r=avafKYa2ppQkDbsKZmdnsYTTT\"", "\"MS=ms46625023\"", "\"notion-domain-verification=Ritxrcrj4d01rFy2ZcYMYS5OsHTz1547shewOfvAJam\"", "\"atlassian-domain-verification=SLYKa0PqukEdv1qZ4iyxfPIA2VixdUUEWwq2ij5FqE9s32BveBqLfS9E87UZliIC\"", "\"apple-domain-verification=9bKaltYxzTsvChtt\"", "\"google-site-verification=gQCE3WSolikPCcE2v5cHaCkJpxiZ0Q8WWrhEpSba1yA\"", "\"docusign=4d75b288-4ccc-43d6-a49b-e2f1f05e0465\"", "\"v=spf1 include:_s95828844.fdmarc.net ~all\"", "\"google-site-verification=caKDmf5CBdxfyakAi4o18s9ryBGd2KO0Pz4FbB7xJ-A\"" ], "NS": [ "ns-930.awsdns-52.net.", "ns-216.awsdns-27.com.", "ns-1501.awsdns-59.org.", "ns-1584.awsdns-06.co.uk." ], "SOA": [ "ns-1501.awsdns-59.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400" ], "CAA": [], "DS": [], "DNSKEY": [], "RRSIG": [], "NSEC": [], "NSEC3": [], "SRV": [], "NAPTR": [], "TLSA": [], "SSHFP": [] }, "ipv4": [ "108.156.107.31", "108.156.107.97", "108.156.107.10", "108.156.107.51" ], "ipv6": [] }, "mail": { "spf": "v=spf1 include:_s95828844.fdmarc.net ~all", "dmarc": "v=DMARC1;p=quarantine;pct=100;rua=mailto:a+95828844@fdmarc.net;ruf=mailto:f+95828844@fdmarc.net;ri=3600;fo=1;", "dkim_selector": "google", "dkim_host": "google._domainkey.techstars.com", "dkim": "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwMt5wklpofJE/P7TN3Gn4MnTWM/aOgXryg9iLdIvivR+OHyQY1mDa0OgPgRmg2rjiKEItyYumPRCvbVapkGIRIuo5lD6eq84hNoc5AE4FJBBrv6Rzz/BwLk312YYwWHhSwGVCj+f0Ca65emp1ROSokGYDYSCt8oSgUe22E3XS4RBou8gBz16wXXvx7kiPLpLO+u1AYY57o7zpKyVzL86W2ywirtCiJgH95SwqHBx98WdFT/FEeh2f93hOfmpldod8sa9/VrDVmc6jyBjCUimbrYZRhK9YdA1qM2YKEr4nAyNeQ6i/LNHwVWxwZ7rZx+C7gUd5K0VCE7y+m929jL9DwIDAQAB", "spf_analysis": { "valid": true, "lookups": 1, "final": "~all", "message": "Within the estimated limit" }, "dmarc_analysis": { "valid": true, "policy": "quarantine" }, "bimi": "", "mta_sts": "", "tls_rpt": "" }, "advanced": { "ptr": "server-108-156-107-31.ord56.r.cloudfront.net", "propagation": { "consistent": false, "results": [ { "provider": "Google", "server": "8.8.8.8", "result": [ "108.156.107.10", "108.156.107.31", "108.156.107.51", "108.156.107.97" ], "time_ms": 74.52 }, { "provider": "Cloudflare", "server": "1.1.1.1", "result": [ "108.157.142.109", "108.157.142.12", "108.157.142.124", "108.157.142.93" ], "time_ms": 41.02 }, { "provider": "Quad9", "server": "9.9.9.9", "result": [ "108.157.142.109", "108.157.142.12", "108.157.142.124", "108.157.142.93" ], "time_ms": 49.64 }, { "provider": "OpenDNS", "server": "208.67.222.222", "result": [ "108.156.107.10", "108.156.107.31", "108.156.107.51", "108.156.107.97" ], "time_ms": 94.37 }, { "provider": "AdGuard", "server": "94.140.14.14", "result": [ "108.157.142.109", "108.157.142.12", "108.157.142.124", "108.157.142.93" ], "time_ms": 82.17 } ] } }, "ssl": { "available": true, "issuer": "Amazon", "subject": "techstars.com", "valid_from": "2026-02-12T18:00:00-06:00", "valid_to": "2027-03-13T17:59:59-06:00", "days_remaining": 215, "san": [ "techstars.com", "*.techstars.com" ], "protocol": "TLSv1.3", "cipher": "TLS_AES_128_GCM_SHA256" }, "http": { "url": "https://www.techstars.com/", "status": "HTTP/2 200 ", "http_version": "3", "headers": { "server": "CloudFront", "content-length": "425219", "location": "https://www.techstars.com/", "date": "Mon, 10 Aug 2026 09:04:42 GMT", "via": "1.1 ff70d2ed51497e957e0d0413c2211f6a.cloudfront.net (CloudFront)", "alt-svc": "h3=\":443\"; ma=86400", "permissions-policy": "camera=(self), microphone=(self), geolocation=()", "referrer-policy": "strict-origin-when-cross-origin", "strict-transport-security": "max-age=63072000; includeSubDomains; preload", "x-content-type-options": "nosniff", "x-frame-options": "SAMEORIGIN", "x-cache": "Miss from cloudfront", "x-amz-cf-pop": "ORD56-P2", "x-amz-cf-id": "UX-2mBjoZqf1-LtKbG3lQ_azcVBw17nOR2ZjYsqH4fbHwMziT8VzAg==", "content-type": "text/html; charset=utf-8", "x-powered-by": "Next.js, Payload", "accept-ch": "Sec-CH-Prefers-Color-Scheme", "cache-control": "s-maxage=300, stale-while-revalidate=31535700", "content-security-policy-report-only": "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval' blob: https://www.googletagmanager.com https://www.google-analytics.com https://googleads.g.doubleclick.net https://connect.facebook.net https://js.zi-scripts.com https://unpkg.com/web-vitals/ https://static.hotjar.com https://script.hotjar.com https://snap.licdn.com https://cdn.cookielaw.org https://cookie-cdn.cookiepro.com https://geolocation.onetrust.com https://www.google.com https://www.gstatic.com https://js.hsforms.net; style-src 'self' 'unsafe-inline' https://cdn.cookielaw.org https://*.hotjar.com; img-src 'self' data: blob: https:; font-src 'self' data:; connect-src 'self' https://edge.api.flagsmith.com https://www.googletagmanager.com https://www.google-analytics.com https://*.google-analytics.com https://analytics.google.com https://*.analytics.google.com https://stats.g.doubleclick.net https://googleads.g.doubleclick.net https://ad.doubleclick.net https://pagead2.googlesyndication.com https://www.google.com https://px.ads.linkedin.com https://js.zi-scripts.com https://ws.zoominfo.com https://*.hotjar.com https://*.hotjar.io wss://*.hotjar.com https://cdn.cookielaw.org https://*.onetrust.com https://cookie-cdn.cookiepro.com https://privacyportal.cookiepro.com https://cdn.bfldr.com https://www.facebook.com https://api.hsforms.com https://forms.hsforms.com https://forms.hubspot.com https://*.hubspot.com https://*.typesense.net; media-src 'self' blob:; worker-src 'self' blob:; frame-src 'self' https://www.googletagmanager.com https://www.youtube.com https://www.youtube-nocookie.com https://player.acast.com https://td.doubleclick.net https://www.facebook.com; object-src 'none'; base-uri 'self'; form-action 'self' https://forms.hsforms.com https://forms.hubspot.com https://api.hsforms.com https://www.facebook.com; report-to csp-endpoint; report-uri /api/csp-report", "critical-ch": "Sec-CH-Prefers-Color-Scheme", "etag": "\"11wjakptozg9439\"", "reporting-endpoints": "csp-endpoint=\"/api/csp-report\"", "vary": "rsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch, Accept-Encoding", "x-nextjs-cache": "HIT", "x-nextjs-prerender": "1", "x-nextjs-stale-time": "300" }, "security_checks": { "strict-transport-security": true, "content-security-policy": false, "x-content-type-options": true, "x-frame-options": true, "referrer-policy": true, "permissions-policy": true, "cross-origin-opener-policy": false, "cross-origin-embedder-policy": false, "cross-origin-resource-policy": false }, "server": "CloudFront", "powered_by": "Next.js, Payload" }, "webpage": { "url": "https://www.techstars.com/", "title": "Techstars | Global Startup Accelerator & Founder Network", "description": "Techstars finds and funds ambitious founders through leading vertical and city accelerator programs.", "success": true, "error": "", "status": 200 }, "network": { "108.156.107.31": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" }, "108.156.107.97": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" }, "108.156.107.10": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" }, "108.156.107.51": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" } }, "smtp": { "host": "aspmx3.googlemail.com", "ports": [ { "port": 25, "open": false, "time_ms": 0.7, "banner": "", "error": "Network is unreachable" }, { "port": 465, "open": false, "time_ms": 4020.5, "banner": "", "error": "Connection timed out" }, { "port": 587, "open": false, "time_ms": 4020.5, "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": 80.6 }