{ "ok": true, "domain": "kdnuggets.com", "generated_at": "2026-08-10T07:17:16-05:00", "cache": { "hit": true, "ttl": 0 }, "score": { "total": 78, "label": "Good", "categories": { "dns": 75, "mail": 90, "security": 69, "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": "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": 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": "34 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": 4, "lost_points": 31, "detail": "1 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": "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": "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": "34 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": "1 of 9 evaluated headers detected.", "category": "security", "max_points": 35, "earned_points": 4, "lost_points": 31 }, { "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": [ "199.16.173.149", "199.16.172.132" ], "AAAA": [], "CNAME": [], "MX": [ "10 alt3.aspmx.l.google.com.", "5 alt2.aspmx.l.google.com.", "1 aspmx.l.google.com.", "5 alt1.aspmx.l.google.com.", "10 alt4.aspmx.l.google.com." ], "TXT": [ "\"google-site-verification=vuUQDR0wUaE1eKYrpwhrzv8f6JD-8eDYBQ_ErwUJc8s\"", "\"_2wujmy95kwkcw3j5lfmns18ukxdarff\"", "\"v=spf1 ip4:162.144.110.81 +a +mx +ip4:216.172.177.46 +include:websitewelcome.com include:_spf.google.com ~all\"", "\"google-site-verification=cfeL4FhB7E-L429hHcgMBDjJRK_Dfo72HB8qIBsGNI8\"" ], "NS": [ "kirk.ns.cloudflare.com.", "lila.ns.cloudflare.com." ], "SOA": [ "kirk.ns.cloudflare.com. dns.cloudflare.com. 2411764633 10000 2400 604800 1800" ], "CAA": [ "0 issuewild \"ssl.com\"", "0 issuewild \"comodoca.com\"", "0 issuewild \"pki.goog; cansignhttpexchanges=yes\"", "0 issue \"ssl.com\"", "0 issue \"pki.goog; cansignhttpexchanges=yes\"", "0 issuewild \"letsencrypt.org\"", "0 issue \"digicert.com; cansignhttpexchanges=yes\"", "0 issuewild \"digicert.com; cansignhttpexchanges=yes\"", "0 issue \"comodoca.com\"", "0 issue \"letsencrypt.org\"" ], "DS": [], "DNSKEY": [], "RRSIG": [], "NSEC": [], "NSEC3": [], "SRV": [], "NAPTR": [], "TLSA": [], "SSHFP": [] }, "ipv4": [ "199.16.173.149", "199.16.172.132" ], "ipv6": [] }, "mail": { "spf": "v=spf1 ip4:162.144.110.81 +a +mx +ip4:216.172.177.46 +include:websitewelcome.com include:_spf.google.com ~all", "dmarc": "v=DMARC1; p=quarantine; rua=mailto:c9dbb3dd8d68302@rep.dmarcanalyzer.com; ruf=mailto:c9dbb3dd8d68302@for.dmarcanalyzer.com; pct=100; fo=1", "dkim_selector": "k2", "dkim_host": "k2._domainkey.kdnuggets.com", "dkim": "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA0b90ObWaLDc+i9MtTNmGeWO009hr20fIxhGg6XBT2kjZ1DTThopSe1nAndsupmcBwlQ5Q6LJ+ZAxLcujnPIxM0ZBLmgpkv8u6RfY4eFP8OLvdAW3oSuB0DyLDigQX4Sj8wBO4YIdQH6AAmBeOsidsKAFNFUCpc3vCxtBDR12U+cBg724l3sBkMQ8evnz6idnqxq9QAVYh8k4kJ+RP+6cqTdy7LjIm8xY/bQNpQIpGUAuDo2DjLcCDun9DAI4Q/3z+Q0o9QuQIDAQAB;", "spf_analysis": { "valid": true, "lookups": 4, "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": [ "199.16.172.132", "199.16.173.149" ], "time_ms": 56.17 }, { "provider": "Cloudflare", "server": "1.1.1.1", "result": [ "199.16.172.132", "199.16.173.149" ], "time_ms": 25.84 }, { "provider": "Quad9", "server": "9.9.9.9", "result": [ "199.16.172.132", "199.16.173.149" ], "time_ms": 29.49 }, { "provider": "OpenDNS", "server": "208.67.222.222", "result": [ "199.16.172.132", "199.16.173.149" ], "time_ms": 49.54 }, { "provider": "AdGuard", "server": "94.140.14.14", "result": [ "199.16.172.132", "199.16.173.149" ], "time_ms": 50.44 } ] } }, "ssl": { "available": true, "issuer": "Google Trust Services", "subject": "tls.automattic.com", "valid_from": "2026-06-15T11:58:43-05:00", "valid_to": "2026-09-13T11:58:42-05:00", "days_remaining": 34, "san": [ "tls.automattic.com", "a-1comfortcare.bwpsites.com", "ace-consulting.net", "afsl.org", "autoraptor.com", "cesiumbrines.com", "cesiumformate.com", "coupon.arcisgolf.com", "deal.com.pe", "envieskinandbody.com", "ethoslending.com", "ftrequipment.com", "fuelpolishing.org", "groundsupport.coffee", "happypropertymanagement.com", "healthinc.org", "idcom.rs", "jrputmanplbg.bwpsites.com", "kdnuggets.com", "lazyb-fencing.com", "pearsonelectricofmontana.com", "rootandrefugelandscapes.com", "scalingtogether.bwpsites.com", "spectrapressandpromotions.com", "towcesterparklands.co.uk", "troyjonesagencyllc.com", "vius.co", "www.afsl.org", "www.artifexdesigns.com", "www.deal.com.pe", "www.dentalworksoakville.com", "www.envieskinandbody.com", "www.ethoslending.com", "www.ftrequipment.com", "www.healthinc.org", "www.lazyb-fencing.com", "www.orangetreetheatre.co.uk", "www.rangelderm.com", "www.tallaigolf.com.au" ], "protocol": "TLSv1.3", "cipher": "TLS_AES_128_GCM_SHA256" }, "http": { "url": "https://www.kdnuggets.com/", "status": "HTTP/2 200 ", "http_version": "3", "headers": { "server": "nginx", "date": "Mon, 10 Aug 2026 12:17:07 GMT", "content-type": "text/html; charset=UTF-8", "content-length": "162", "location": "https://www.kdnuggets.com/", "strict-transport-security": "max-age=31536000", "x-ac": "34.mdw _atomic_dca MISS", "alt-svc": "clear", "server-timing": "a8c-cdn, dc;desc=mdw, cache;desc=MISS;dur=75.0", "vary": "Cookie", "last-modified": "Mon, 10 Aug 2026 12:15:43 GMT", "cache-control": "max-age=216, must-revalidate", "x-nananana": "Batcache-Hit", "host-header": "wpcloud", "link": "; rel=\"https://api.w.org/\"" }, "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": "nginx", "powered_by": "" }, "webpage": { "url": "https://www.kdnuggets.com/", "title": "Data Science, Machine Learning, AI & Analytics - KDnuggets", "description": "Data Science, Machine Learning, AI & Analytics", "success": true, "error": "", "status": 200 }, "network": { "199.16.173.149": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" }, "199.16.172.132": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" } }, "smtp": { "host": "alt3.aspmx.l.google.com", "ports": [ { "port": 25, "open": false, "time_ms": 0.7, "banner": "", "error": "Network is unreachable" }, { "port": 465, "open": false, "time_ms": 4020.8, "banner": "", "error": "Connection timed out" }, { "port": 587, "open": false, "time_ms": 4019.2, "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": 93.68 }