{ "ok": true, "domain": "leipzig.de", "generated_at": "2026-08-11T03:38:19-05:00", "cache": { "hit": true, "ttl": 0 }, "score": { "total": 81, "label": "Good", "categories": { "dns": 70, "mail": 70, "security": 88, "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": "3 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": "3 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": 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": 0, "lost_points": 20, "detail": "No tested DKIM selector responded." }, { "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": "168 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": 23, "lost_points": 12, "detail": "6 of 9 evaluated headers detected." }, { "category": "network", "title": "PTR reverse DNS", "max_points": 30, "earned_points": 30, "lost_points": 0, "detail": "PTR: lb-1.lehst.de" }, { "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": "3 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": "3 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": "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": "error", "title": "DKIM", "detail": "No tested DKIM selector responded.", "category": "mail", "max_points": 20, "earned_points": 0, "lost_points": 20 }, { "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": "168 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": "6 of 9 evaluated headers detected.", "category": "security", "max_points": 35, "earned_points": 23, "lost_points": 12 }, { "level": "ok", "title": "PTR reverse DNS", "detail": "PTR: lb-1.lehst.de", "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": [ "49.12.171.34", "49.12.171.33", "88.198.35.8" ], "AAAA": [], "CNAME": [], "MX": [ "10 mailin.lecos-gmbh.de." ], "TXT": [ "\"v=spf1 a:leipzig.de mx ip4:212.122.61.0/24 include:spf.protection.outlook.com -all\"", "\"google-site-verification=9HCcnLHmRbUOiZ-xu21I6gkAHva19y8QJ_YjJqPUNd4\"", "\"MS=ms83213498\"", "\"swisssign-check=AS5Qko3OaiqOZ6BbajnOX6oRzj4\"", "\"apple-domain-verification=fmeph6kuxOFzLKon\"" ], "NS": [ "pns.dtag.de.", "dns1.leipzig.de.", "dns2.leipzig.de." ], "SOA": [ "dns1.leipzig.de. hostmaster.leipzig.de. 2026080701 21600 3600 604800 86400" ], "CAA": [], "DS": [], "DNSKEY": [], "RRSIG": [], "NSEC": [], "NSEC3": [], "SRV": [], "NAPTR": [], "TLSA": [], "SSHFP": [] }, "ipv4": [ "49.12.171.34", "49.12.171.33", "88.198.35.8" ], "ipv6": [] }, "mail": { "spf": "v=spf1 a:leipzig.de mx ip4:212.122.61.0/24 include:spf.protection.outlook.com -all", "dmarc": "v=DMARC1; p=quarantine; rua=mailto:dmarc@leipzig.de; ruf=mailto:spfdkimfail@leipzig.de; fo=1; aspf=s;", "dkim_selector": "x", "dkim_host": "", "dkim": "", "spf_analysis": { "valid": true, "lookups": 3, "final": "-all", "message": "Within the estimated limit" }, "dmarc_analysis": { "valid": true, "policy": "quarantine" }, "bimi": "", "mta_sts": "", "tls_rpt": "" }, "advanced": { "ptr": "lb-1.lehst.de", "propagation": { "consistent": true, "results": [ { "provider": "Google", "server": "8.8.8.8", "result": [ "49.12.171.33", "49.12.171.34", "88.198.35.8" ], "time_ms": 201.62 }, { "provider": "Cloudflare", "server": "1.1.1.1", "result": [ "49.12.171.33", "49.12.171.34", "88.198.35.8" ], "time_ms": 316.25 }, { "provider": "Quad9", "server": "9.9.9.9", "result": [ "49.12.171.33", "49.12.171.34", "88.198.35.8" ], "time_ms": 302.38 }, { "provider": "OpenDNS", "server": "208.67.222.222", "result": [ "49.12.171.33", "49.12.171.34", "88.198.35.8" ], "time_ms": 898.84 }, { "provider": "AdGuard", "server": "94.140.14.14", "result": [ "49.12.171.33", "49.12.171.34", "88.198.35.8" ], "time_ms": 226.38 } ] } }, "ssl": { "available": true, "issuer": "DigiCert Inc", "subject": "*.leipzig.de", "valid_from": "2026-01-06T18:00:00-06:00", "valid_to": "2027-01-26T17:59:59-06:00", "days_remaining": 168, "san": [ "*.leipzig.de", "leipzig.de" ], "protocol": "TLSv1.3", "cipher": "TLS_AES_256_GCM_SHA384" }, "http": { "url": "https://www.leipzig.de/", "status": "HTTP/2 200 ", "http_version": "3", "headers": { "server": "nginx", "date": "Tue, 11 Aug 2026 08:38:16 GMT", "content-type": "text/html; charset=utf-8", "content-length": "597415", "location": "https://www.leipzig.de/", "x-frame-options": "SAMEORIGIN", "cache-control": "no-store, no-cache, must-revalidate, max-age=0", "expires": "0", "age": "0", "x-via": "lb3", "content-language": "de-DE", "vary": "Accept-Encoding", "x-ua-compatible": "IE=edge", "x-content-type-options": "nosniff", "x-xss-protection": "1; mode=block", "strict-transport-security": "max-age=31536000; includeSubDomains; preload", "report-to": "{ \"group\": \"csp-log-endpoint\", \"max_age\": 10886400, \"endpoints\": [{ \"url\": \"/csp-log.php\" }]}", "content-security-policy-report-only": "report-uri /csp-log.php; report-to csp-log-endpoint; default-src 'none'; img-src 'self' data: https://werbung.leipzig.de/ https://data.leipzig.de/ https://static.leipzig.de/ https://www.gstatic.com/images/; script-src 'self' 'unsafe-inline' https://cdn.captchafox.com/ https://www.leipzig.de/ https://static.leipzig.de/ https://werbung.leipzig.de/delivery/ https://vrweb15.linguatec.org/VoiceReaderWeb15User/player20/scripts/ https://dev.lehst.de/ https://static.conword.io/; style-src 'self' 'unsafe-inline' https://cdn.captchafox.com/ https://static.leipzig.de/ https://vrweb15.linguatec.org/VoiceReaderWeb15User/player/styles/ https://dev.lehst.de/; font-src 'self' https://static.leipzig.de/ https://fonts.gstatic.com/; media-src 'self' https://static.leipzig.de/ https://vrweb15.linguatec.org/VoiceReaderWeb15User/player20/scripts/; connect-src 'self' https://api.captchafox.com/ https://cdn.captchafox.com/ https://vrweb15.linguatec.org/VoiceReaderWeb15WebService/ https://dev.lehst.de/ https://www.leipzig.de/; frame-src https://www.youtube-nocookie.com/embed/ https://tnv.leipzig.de https://s-leipzig.maps.arcgis.com https://geo.leipzig.de https://geoportal.leipzig.de https://www.blitzvideoserver.de https://tportal.toubiz.de https://kwis-web.leipzig.de; frame-ancestors 'self' https://*.leipzig.de/;", "content-security-policy": "frame-ancestors 'self' https://*.leipzig.de/;", "referrer-policy": "strict-origin-when-cross-origin", "permissions-policy": "geolocation=(), midi=(), camera=(), usb=(), magnetometer=(), accelerometer=(), vr=(), speaker=(), ambient-light-sensor=(), gyroscope=(), microphone=()", "accept-ranges": "bytes", "pragma": "no-cache" }, "security_checks": { "strict-transport-security": true, "content-security-policy": true, "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": "nginx", "powered_by": "" }, "webpage": { "url": "https://www.leipzig.de/", "title": "Startseite leipzig.de - Stadt Leipzig", "description": "Das offizielle Internet-Portal für Leipziger Bürger, Touristen und Unternehmen. Ein Service der Stadt Leipzig.", "success": true, "error": "", "status": 206 }, "network": { "49.12.171.34": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" }, "49.12.171.33": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" }, "88.198.35.8": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" } }, "smtp": { "host": "mailin.lecos-gmbh.de", "ports": [ { "port": 25, "open": false, "time_ms": 230.6, "banner": "", "error": "Connection refused" }, { "port": 465, "open": false, "time_ms": 113.7, "banner": "", "error": "Connection refused" }, { "port": 587, "open": false, "time_ms": 114.5, "banner": "220 mailin.lecos-gmbh.de ESMTP", "error": "No connection" } ] }, "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": 112.17 }