{ "ok": true, "domain": "nrc.nl", "generated_at": "2026-08-09T04:40:14-05:00", "cache": { "hit": true, "ttl": 0 }, "score": { "total": 82, "label": "Good", "categories": { "dns": 85, "mail": 90, "security": 73, "network": 50, "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": 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": 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": "234 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": 8, "lost_points": 27, "detail": "2 of 9 evaluated headers detected." }, { "category": "network", "title": "PTR reverse DNS", "max_points": 30, "earned_points": 30, "lost_points": 0, "detail": "PTR: hosting-nrcwlb-139.intermax.nl" }, { "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": 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/1.1 200 OK" }, { "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": "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": "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": "234 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": "2 of 9 evaluated headers detected.", "category": "security", "max_points": 35, "earned_points": 8, "lost_points": 27 }, { "level": "ok", "title": "PTR reverse DNS", "detail": "PTR: hosting-nrcwlb-139.intermax.nl", "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": "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/1.1 200 OK", "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": [ "46.22.183.139" ], "AAAA": [], "CNAME": [], "MX": [ "10 nrc-nl.mail.protection.outlook.com." ], "TXT": [ "\"bQnS/PGTwj7QNUp8O3XSqNNcRMiaFEaicDl6zvqyKjqOLzutoRXYkYTzU4oiktZqJur/uY9b5EgA2IYpoezDxg==\"", "\"apple-domain-verification=iDCKm6RneFM_me_nD9O5JCwJ_JzQxda8m_k2oSwQjQY\"", "\"google-gws-recovery-domain-verification=53127880\"", "\"DomainVerification=MXG8IKZ0SOP7NDOZJJT51HZ9ZXF0KJNETL9707NETJYV8CP6K29U63LHD5C1UVKX\"", "\"adobe-idp-site-verification=2874515d68b0370803179f9e8d6698cb503e00756499a6e7a042df3636f7303a\"", "\"v=spf1 include:spf.protection.outlook.com include:spf.messagelabs.com ip4:185.43.125.61 ip4:193.58.7.100 ip4:193.58.7.101 ip4:193.58.7.102 -all\"", "\"google-site-verification=ikgVoGAKV4DKqx-ng7ZzhrPX08Y3p7hX2M1EFV2UsWk\"", "\"anthropic-domain-verification-tsgrgj=YB41u8wVz6SuwbkbTLeOByWWP\"", "\"1password-site-verification=N7FXCOWMXZFRLCBGGY5SJMVFQQ\"", "\"google-site-verification=N_4G16QG--24SkIiXKjdhWCIg-HNJWw1KllU0CoWRhM\"", "\"blitz=mu-b6144c2e-429acc50-9f761b0f-4187a6ac\"", "\"facebook-domain-verification=zssl5avhcj1uut9k2c1dr5yjr7oydv\"", "\"google-site-verification=3ZR4f0Ewcn9YB64nwdtKwRPP1H_NQzEqVLyi4laDnLQ\"", "\"atlassian-domain-verification=lMLcQEH8BbDfXWN11OfWNm2Jk19vskfLinI0rLNnVQ9gZEtb9aSaa6yUwqXrKW0Q\"", "\"_zyp6z2rhzgp7elsb4mu4b489p2k0mx7\"", "\"google-site-verification=GSppHa0q0UbE00OOKtUrywm-EgHI2obFZAALSgeYNXc\"", "\"MS=ms21743690\"" ], "NS": [ "eva.ns.cloudflare.com.", "phil.ns.cloudflare.com." ], "SOA": [ "eva.ns.cloudflare.com. dns.cloudflare.com. 2411485635 10000 2400 604800 1800" ], "CAA": [], "DS": [ "2371 13 2 3BD070D5FA3271F038F089B3FE821740F939B177881B4201DEEDE21F 851EB0C9" ], "DNSKEY": [ "257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+ KkxLbxILfDLUT0rAK9iUzy1L53eKGQ==", "256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8 KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA==" ], "RRSIG": [ "NS 13 2 86400 20260810104003 20260808084003 34505 nrc.nl. 0EcSd7aBP2VYKO/T2pa/O7b/y5r2D9GEjf9u6okOn5fJ20ilp9iCJZBR haS7J5UGrBKrxcafMih5SmPlsGlJ8g==", "A 13 2 300 20260810104003 20260808084003 34505 nrc.nl. pUJy6+7J58GAnupMTMQJYRvDnIjyjMM61TLsAJ5CdgHj9/hmRhUj9rGF Y+Ggs+u7NMLRbNqflMvwQ2Hq6ILc3Q==", "DS 13 2 3600 20260904033519 20260806190725 467 nl. BCEneShLYdonVf07Z9YJW/ILuIv21CABwRZi/2+qqWb0XLqTtuQYCuNv jmpT8FGh87js7nlz2cV45npC5QutpA==" ], "NSEC": [ "\\000.nrc.nl. 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": [ "46.22.183.139" ], "ipv6": [] }, "mail": { "spf": "v=spf1 include:spf.protection.outlook.com include:spf.messagelabs.com ip4:185.43.125.61 ip4:193.58.7.100 ip4:193.58.7.101 ip4:193.58.7.102 -all", "dmarc": "v=DMARC1; p=reject; pct=100; fo=1; ri=3600; rua=mailto:13dbc9fb@inbox.ondmarc.com; ruf=mailto:13dbc9fb@inbox.ondmarc.com", "dkim_selector": "selector1", "dkim_host": "selector1._domainkey.nrc.nl", "dkim": "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrjFEKJIBC41p8QjFSS45Xw7LBYDdDnj4Uj0L4XMDw2C4OpmXg77Cawa7O39bk/6AOaDiDyStGhx5BhfLabYBn3xkrxWfpHdQwTnmaN1dO+FRybgfDJfKOQMD1TY9zRDnSxQVuEBa1iFvozyEzV5/SgRLHsohLVDLxXL+B0NmCMQIDAQAB; n=1024,1449749909,1465561109", "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": "hosting-nrcwlb-139.intermax.nl", "propagation": { "consistent": true, "results": [ { "provider": "Google", "server": "8.8.8.8", "result": [ "46.22.183.139" ], "time_ms": 75.68 }, { "provider": "Cloudflare", "server": "1.1.1.1", "result": [ "46.22.183.139" ], "time_ms": 46.84 }, { "provider": "Quad9", "server": "9.9.9.9", "result": [ "46.22.183.139" ], "time_ms": 45.05 }, { "provider": "OpenDNS", "server": "208.67.222.222", "result": [ "46.22.183.139" ], "time_ms": 59.26 }, { "provider": "AdGuard", "server": "94.140.14.14", "result": [ "46.22.183.139" ], "time_ms": 55.03 } ] } }, "ssl": { "available": true, "issuer": "Sectigo Limited", "subject": "*.nrc.nl", "valid_from": "2026-03-02T18:00:00-06:00", "valid_to": "2027-03-31T18:59:59-05:00", "days_remaining": 234, "san": [ "*.nrc.nl", "nrc.nl" ], "protocol": "TLSv1.3", "cipher": "TLS_AES_256_GCM_SHA384" }, "http": { "url": "https://www.nrc.nl/", "status": "HTTP/1.1 200 OK", "http_version": "2", "headers": { "server": "nginx", "date": "Sun, 09 Aug 2026 09:40:05 GMT", "content-type": "text/html; charset=utf-8", "content-length": "305656", "connection": "keep-alive", "location": "https://www.nrc.nl/", "set-cookie": "T6BNumSun3XSVFoIsgO6+3CPTrcT5olFZNzKv9LY5guLQhjSQejQ+BmClS0_=v1K9KGSQ__nsU; Domain=nrc.nl; Expires=Tue, 08-Sep-2026 09:40:05 GMT; Path=/", "link": "; rel=\"preconnect\", ; rel=\"preconnect\"", "x-proxy-cache": "HIT", "x-frontend-instance": "frontend01", "x-cache-date": "Sun, 09 Aug 2026 09:37:43 GMT", "strict-transport-security": "max-age=63072000", "feature-policy": "camera 'none'; microphone 'none'; midi 'none'; geolocation 'none'", "permissions-policy": "camera=(), microphone=(), midi=(), geolocation=(), interest-cohort=()" }, "security_checks": { "strict-transport-security": true, "content-security-policy": false, "x-content-type-options": false, "x-frame-options": false, "referrer-policy": false, "permissions-policy": true, "cross-origin-opener-policy": false, "cross-origin-embedder-policy": false, "cross-origin-resource-policy": false }, "server": "nginx", "powered_by": "" }, "webpage": { "url": "https://www.nrc.nl/", "title": "NRC - Nieuws, achtergronden en onderzoeksjournalistiek", "description": "Nieuws, duiding, analyse en onderzoeksjournalistiek over onderwerpen die er echt toe doen. Feitelijk, betrouwbaar, diepgravend en genuanceerd.", "success": true, "error": "", "status": 200 }, "network": { "46.22.183.139": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" } }, "smtp": { "host": "nrc-nl.mail.protection.outlook.com", "ports": [ { "port": 25, "open": false, "time_ms": 23.3, "banner": "", "error": "Network is unreachable" }, { "port": 465, "open": false, "time_ms": 4044.5, "banner": "", "error": "Connection timed out" }, { "port": 587, "open": false, "time_ms": 4020, "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": 78.97 }