{ "ok": true, "domain": "denic.de", "generated_at": "2026-08-09T09:45:47-05:00", "cache": { "hit": true, "ttl": 0 }, "score": { "total": 86, "label": "Good", "categories": { "dns": 85, "mail": 90, "security": 88, "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": "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": 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": "4 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": "84 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: www.denic.de" }, { "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/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": "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": "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": "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": "4 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": "84 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: www.denic.de", "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/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": [ "81.91.170.12" ], "AAAA": [], "CNAME": [], "MX": [ "10 mxext4.mailbox.org.", "10 mxext3.mailbox.org.", "10 mxext1.mailbox.org.", "10 mxext2.mailbox.org." ], "TXT": [ "\"miro-verification=bdea18ce07c1ee63c109bb12411e1bc252cbd2c8\"", "\"v=spf1 a mx ip4:81.91.161.53 ip4:81.91.161.54 ip6:2a02:568:102:211::1:16 ip6:2a02:568:102:211::1:17 include:mailbox.org ~all\"" ], "NS": [ "ns2.denic.de.", "ns1.denic.de.", "ns4.denic.net.", "ns3.denic.de." ], "SOA": [ "ns1.denic.de. dns-operations.denic.de. 1785837681 10800 1800 3600000 1800" ], "CAA": [], "DS": [ "26155 8 2 078547BF937A225C9EFB2CAF7FAC11BD88671FCEDFAEEB55C9B19CB0 320BEFC9" ], "DNSKEY": [ "257 3 8 AwEAAb/xrM2MD+xm84YNYby6TxkMaC6PtzF2bB9WBB7ux7iqzhViob4G KvQ6L7CkXjyAxfKbTzrdvXoAPpsAPW4pkThReDAVp3QxvUKrkBM8/uWR F3wpaUoPsAHm1dbcL9aiW3lqlLMZjDEwDfU6lxLcPg9d14fq4dc44FvP x6aYcymkgJoYvR6P1wECpxqlEAR2K1cvMtqCqvVESBQV/EUtWiALNuwR 2PbhwtBWJd+e8BdFI7OLkit4uYYux6Yu35uyGQ==", "256 3 8 AwEAAdBHphkiV/H6Rfd4T0rj1owLOnV/s2APZtU7cyXKjc7cSPPbEEuN qGMofi1awLw1EiDp8o0ozJPLN41vhlZBVUQQE/1jqWsxX5aOQ0UCE1qe ieVhUevZFCBV7KZx9KM7wyRX7Vqp5kqTPfldJ3VsYwS2qIMsjzXL2dp8 Ulh/fGP1" ], "RRSIG": [ "A 8 2 3600 20260818100121 20260804083121 29355 denic.de. r9V1T9U171cAV6yTtHVPSPZdEnwjT6mjFMEgUwCVCojeux9+4DvoYH3f m8my17L0vTv10Ze3qlOFO6ntKnxTtbhdAcwt5JLNdFTUv+SH8qBiMkcY Wys99YAZUo7fQV0rrgrDjOqw6CVc2BW7UGWfK/C4e501BWAOndfybtIs zS4=", "NS 8 2 86400 20260818100121 20260804083121 29355 denic.de. VbqaiRE/SfbWh5M7+CLtNR/Ba9U9Tp6xK2bwKubXms1KCtI5Jp3WPiXT hZsXY1ncAQRvMIi/GLslRAJDu5DY7r/7x0KqMBuJQk7uqYP6JFyOs728 RhA8bA0meCQnNq615e9JgckyXHxGEeic+uuhHy9E+ow4o24SXzeG6/xw piw=", "SOA 8 2 3600 20260818100121 20260804083121 29355 denic.de. ev6YElxsWumOlfL1mTSctQORZwAj53GPCpUL9J+UV1TfX0//qNxI/Y9/ VtMo5gxjVmN6CxLl0xq9DTIjb/OnJnXuKfP8pK6ZUZGQkxYCJWA/B5+r 7cEKIe4uw0V7ahCVdyGqFQwv2voUZv1uY2pW8dtYKzxxTC0LiVMaRT// RrU=", "TXT 8 2 3600 20260818100121 20260804083121 29355 denic.de. l/GIhe+F/bVPgrCd0KJQyE79LoJ62LDVUY7uB8mwjAeqSxBRAl2U9nQV KA/MSSFh0K6EVLPqABwLFDyqlf9joTyAqIBzcbk+n32/VQTT5K3MF+vW egOg6t8mpeUE1IcTZY91N8agOuDMUqOtd4iwgcOMl6HL0KEsqH+t6fWM HX8=", "DNSKEY 8 2 3600 20260818100121 20260804083121 26155 denic.de. eoj0t9k2U8VaKMXWw9N4OlayQZQZz30nswbdZvh47NLNOVGvyfVgopsC UmuauSb5RKXziAoBvS9HPXjtJ7LI33ZUv+dlv77tUTZdMPTabtMw33pI H8VoJcU0IytqtFZkNwIcSYswhDZSp9gOW59wRSJfVCuTmYoBjhOGn120 TVO8Cv8cg1DS+pXtBkMxrGa5bSlMW9/SeudxN91N2sNGoIO7Waac04jr 9e8/seyeiXop8VSxQoFeqAlqgA3HrtNd", "MX 8 2 3600 20260818100121 20260804083121 29355 denic.de. am38nB2Sot7jkUyM88xiFub0rT6KVWgdC0FbD4NAyigQYPSfP0aR9S+k 4yT8uNMeHXUQzzExugxuApVU1NrGOXLi+ChJK758b7Rqo4AsP80xJOwY OKmalwEncRAfX0KGpU9SxxlEt9UV0OAOwsqSStXnHnrrcRR4hMC6yvl2 SpU=", "DS 8 2 86400 20260817120903 20260803103903 32911 de. rskIH2OlynuQr4QM35t/Y776Y6NPYuhF1xxE6HQxzfBiG/Pj15nZyXGE NcwYTuTZkAGRA7UXoCbWsEPe+z9FTpgw8ZpdC6/UsmeqmlcwCjfbTpA8 thEv5mAHwJBkLY6Z2HRj9D4CUSW4fWnXJeMZj6oBaKPziiE29a6eL2KL T40=", "NSEC3PARAM 8 2 1800 20260818100121 20260804083121 29355 denic.de. r19NeR+SkUayM72/SdJdXCEMG2ee9UdgexHiQIhRMeM+hTq4OpAMB2rV iFwe6N24DgOXS3hQZtdm/ojkhX2pG55VZRRKFNA/3b8u5aLxok3rwNDp 0qM/VDE/jbPHePRkqmHo684ivkd37M/A7HTYRWsexQw99KfBBKG2k6DK hHA=" ], "NSEC": [], "NSEC3": [], "SRV": [], "NAPTR": [], "TLSA": [], "SSHFP": [] }, "ipv4": [ "81.91.170.12" ], "ipv6": [] }, "mail": { "spf": "v=spf1 a mx ip4:81.91.161.53 ip4:81.91.161.54 ip6:2a02:568:102:211::1:16 ip6:2a02:568:102:211::1:17 include:mailbox.org ~all", "dmarc": "v=DMARC1; p=reject; rua=mailto:dmarcrep@denic.de; rf=afrf; sp=reject; fo=0; ri=86400; adkim=r; aspf=r; pct=100", "dkim_selector": "mail", "dkim_host": "mail._domainkey.denic.de", "dkim": "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAq6WAzg6LBh0B6eETsztxulCJNz7biMTWHsAJ4e1INlt5zSziMuUHFPM66xNvaY+sbIuXRq42W1giTOMTiGxrHUdBP0zGW1hYUaJLXd0nRXStBsZeGgeqwghcu/iN0B38aqQLK9XFZBbYqhGiQAVOJqwFgEMpHdfzje2Oo7IF9FCavk3fYP8sQqRTMoJah+1gMVa4SJoVQZICI9o1W/2nDWNB/0kqYVG8lZxY5EAzEgE4gneprnmb9GPZzAU3SOu69QfHeamU0KwM4PSUZ+a4eBMUHIMpsvGkpfyNUf8s9ctp0kRtwokdAm4H2uL9vEuBU2RS49TdTzD4qEH3JKmEWwIDAQAB", "spf_analysis": { "valid": true, "lookups": 3, "final": "~all", "message": "Within the estimated limit" }, "dmarc_analysis": { "valid": true, "policy": "reject" }, "bimi": "v=BIMI1; l=https://www.denic.de/fileadmin/Logo/Denic_de-Signet_RGB-BIMI-v2.svg; a=https://www.denic.de/fileadmin/Logo/Denic_de-VMC.pem", "mta_sts": "", "tls_rpt": "" }, "advanced": { "ptr": "www.denic.de", "propagation": { "consistent": true, "results": [ { "provider": "Google", "server": "8.8.8.8", "result": [ "81.91.170.12" ], "time_ms": 323.17 }, { "provider": "Cloudflare", "server": "1.1.1.1", "result": [ "81.91.170.12" ], "time_ms": 141.12 }, { "provider": "Quad9", "server": "9.9.9.9", "result": [ "81.91.170.12" ], "time_ms": 147.14 }, { "provider": "OpenDNS", "server": "208.67.222.222", "result": [ "81.91.170.12" ], "time_ms": 148.21 }, { "provider": "AdGuard", "server": "94.140.14.14", "result": [ "81.91.170.12" ], "time_ms": 111.47 } ] } }, "ssl": { "available": true, "issuer": "Let's Encrypt", "subject": "denic.de", "valid_from": "2026-08-04T02:44:38-05:00", "valid_to": "2026-11-02T01:44:37-06:00", "days_remaining": 84, "san": [ "*.25-jahre-denic.de", "*.25-years-denic.de", "*.adm.denic.de", "*.ams1.adm.denic.de", "*.ams1.prod.denic.de", "*.beta.denic.de", "*.celebrate-25years.de", "*.cloud.denic.de", "*.cons.denic.de", "*.denic-services.com", "*.denic-services.de", "*.denic.de", "*.denic.net", "*.denic.online", "*.dev.cloud.denic.de", "*.dev.denic.de", "*.digital-escrow.at", "*.digital-escrow.ch", "*.domain-vchecked.de", "*.eine-gute-domain.de", "*.einegutedomain.de", "*.enum.denic.de", "*.escrow-digital.at", "*.escrow-digital.ch", "*.escrow-digital.com", "*.escrow-digital.de", "*.escrow4ntld.com", "*.escrow4ntlds.com", "*.ew.osl.denic.de", "*.exmon.denic.de", "*.fra1.adm.denic.de", "*.fra1.osl.denic.de", "*.fra1.prod.denic.de", "*.fra2.adm.denic.de", "*.fra2.osl.denic.de", "*.fra2.prod.denic.de", "*.fra3.adm.denic.de", "*.fra3.prod.denic.de", "*.gcp.prod.denic.de", "*.ha.mtest.denic.de", "*.ha.prod.denic.de", "*.ha.qa2.stage.denic.de", "*.ha.stage.denic.de", "*.id-denic.de", "*.iddenic.de", "*.if.denic.de", "*.infra.dev.denic.de", "*.infra.prod.denic.de", "*.infra.stage.denic.de", "*.infs.denic.de", "*.int-t.denic.de", "*.iscsi.denic.de", "*.mtest.denic.de", "*.nic.de", "*.nsl.denic.de", "*.office.denic.de", "*.osl.denic.de", "*.pentest.denic.de", "*.prod.denic.de", "*.rri.denic.de", "*.rz.denic.de", "*.rz2012.adm.denic.de", "*.secure.denic.de", "*.stage.denic.de", "*.start-your-domain.de", "*.svc.denic.de", "*.test.denic.de", "*.transit.denic.de", "*.vchecked.de", "25-jahre-denic.de", "25-years-denic.de", "celebrate-25years.de", "denic-services.com", "denic-services.de", "denic.de", "denic.net", "denic.online", "digital-escrow.at", "digital-escrow.ch", "domain-vchecked.de", "eine-gute-domain.de", "einegutedomain.de", "escrow-digital.at", "escrow-digital.ch", "escrow-digital.com", "escrow-digital.de", "escrow4ntld.com", "escrow4ntlds.com", "id-denic.de", "iddenic.de", "nic.de", "start-your-domain.de", "vchecked.de" ], "protocol": "TLSv1.3", "cipher": "TLS_AES_128_GCM_SHA256" }, "http": { "url": "https://www.denic.de/", "status": "HTTP/2 200 ", "http_version": "3", "headers": { "location": "https://www.denic.de/", "server": "BigIP", "content-length": "382791", "date": "Sun, 09 Aug 2026 14:38:53 GMT", "content-language": "de-DE", "expires": "Mon, 10 Aug 2026 11:32:15 GMT", "cache-control": "max-age=0, s-maxage=75202", "pragma": "public", "content-security-policy": "default-src 'self' https://*.denic.de; script-src 'self' 'unsafe-eval' 'unsafe-inline' https://*.denic.de https://denic.matomo.cloud https://cdn.matomo.cloud; img-src 'self' data: https://*.denic.de; base-uri 'self'; frame-src 'self'; style-src 'self' 'unsafe-inline'; font-src 'self'; connect-src 'self' https://denic.matomo.cloud", "x-xss-protection": "0", "vary": "Accept-Encoding", "referrer-policy": "same-origin", "x-content-type-options": "nosniff", "x-frame-options": "SAMEORIGIN", "x-ua-compatible": "IE=edge", "content-type": "text/html; charset=utf-8", "permissions-policy": "accelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=(), browsing-topics=(), interest-cohort=()", "x-varnish": "387612860 386402676", "age": "405", "accept-ranges": "bytes", "strict-transport-security": "max-age=15552000" }, "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": "BigIP", "powered_by": "" }, "webpage": { "url": "https://www.denic.de/", "title": "DENIC eG: DENIC – Registrierungsstelle für alle .de Domains", "description": "Als Registry verwaltet DENIC alle .de-Domains und stellt sicher, dass sie jederzeit erreichbar sind.", "success": true, "error": "", "status": 206 }, "network": { "81.91.170.12": { "success": false, "country": "", "region": "", "city": "", "asn": "", "organization": "", "isp": "" } }, "smtp": { "host": "mxext4.mailbox.org", "ports": [ { "port": 25, "open": false, "time_ms": 8.1, "banner": "", "error": "Network is unreachable" }, { "port": 465, "open": false, "time_ms": 4008.5, "banner": "", "error": "Connection timed out" }, { "port": 587, "open": false, "time_ms": 4028, "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": 83.55 }