# Registrant Organization Is Cloudflare Matches records whose domain.whois.registrant.organization equals cloudflare, inc.. Source: https://docs.deepinfo.com/reference/discovery/domain-search/examples/domain-whois-registrant-organization/ Last updated: 2026-09-26 --- `POST https://api.deepinfo.com/v1/discovery/domain-search?page_size=25` Example 6 of 24 in **Filters › WHOIS** · [Domain Search Examples](/reference/discovery/domain-search/examples/) · endpoint: [Domain Search](/reference/discovery/domain-search/) Tags: `field` `domain.whois.registrant.organization` · `operator` `eq` Matches records whose `domain.whois.registrant.organization` equals `cloudflare, inc.`. WHOIS values are stored in lower case. In the response, look at `results[].domain.whois.registrant.organization`. ## Request | Parameter | In | Value | |---|---|---| | `page_size` | query | `25` | | `filters.must[0].name` | body | `domain.whois.registrant.organization` | | `filters.must[0].type` | body | `eq` | | `filters.must[0].value` | body | `cloudflare, inc.` | ```bash curl -X POST 'https://api.deepinfo.com/v1/discovery/domain-search?page_size=25' \ -H 'apikey: YOUR_API_KEY' \ -H 'Accept: application/json' \ -H 'Content-Type: application/json' \ -d '{ "filters": { "must": [ { "name": "domain.whois.registrant.organization", "type": "eq", "value": "cloudflare, inc." } ] } }' ``` ## Response ### 200 · OK > Shortened for this page: results: 3 of 25 shown `Content-Type: application/json` · `ratelimit-limit: 1000` · `ratelimit-remaining: 998` · `ratelimit-reset: 1` · `x-ratelimit-limit-hour: 100000` · `x-ratelimit-limit-minute: 10000` · `x-ratelimit-limit-second: 1000` · `x-ratelimit-remaining-hour: 99965` · `x-ratelimit-remaining-minute: 9992` · `x-ratelimit-remaining-second: 998` · `deepinfo-request-id: 5f0c6a8e-1b2d-4c3e-9f4a-7b8c9d0e1f2a` ```json { "page": 1, "page_size": 25, "result_count": 3837, "results": [ { "punycode": "kaista-kasino.fi", "unicode": "kaista-kasino.fi", "is_idn": false, "subdomain": null, "subdomain_last": null, "subdomain_root": null, "name": { "punycode": "kaista-kasino", "unicode": "kaista-kasino", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": true, "length": 13, "lang": "fi", "keywords": [ "kaista", "kasino" ], "keyword_count": 2, "latinized": [], "contains_confusable": false }, "domain": { "punycode": "kaista-kasino.fi", "unicode": "kaista-kasino.fi", "is_idn": false, "name": { "punycode": "kaista-kasino", "unicode": "kaista-kasino", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": true, "length": 13, "lang": "fi", "keywords": [ "kaista", "kasino" ], "keyword_count": 2 }, "extension": { "punycode": "fi", "unicode": "fi", "is_idn": false }, "extension_root": { "punycode": "fi", "unicode": "fi", "is_idn": false }, "extension_sub": null, "extension_type": 2, "reserved": null, "premium": null, "registered": true, "whois": { "create_date": "2026-08-14T18:40:32Z", "update_date": null, "expiry_date": "2027-08-14T18:40:32Z", "registrar": "eurodns s.a.", "registrant": { "name": "cloudflare, inc.", "organization": "cloudflare, inc.", "street": null, "city": null, "state": null, "postal_code": null, "country": null, "phone": null, "email": null }, "name_servers": [ "cora.ns.cloudflare.com", "miles.ns.cloudflare.com" ], "domain_status": [ "registered" ], "whois_server": null, "check_date": "2026-08-25T08:24:56Z" }, "whois_normalized": { "registrant": { "organization": "cloudflareinc", "phone": null, "email": null, "email_fqdn_apex": null, "email_domain_apex": null } }, "whois_last_check_date": "2026-08-25T08:24:56Z", "whois_create_date_historical": [ "2026-08-14T18:40:32Z" ], "whois_last_change_date": "2026-08-25T08:28:10Z", "whois_registrant_email_historical": [], "whois_privacy_enabled": true, "dns": { "a": { "update_date": "2026-08-27T08:45:28Z", "ip_addresses": [ "104.21.76.243", "172.67.202.81" ] } }, "dns_last_change_date": "2026-08-22T22:29:34Z", "ip_history": [ "104.21.76.243", "172.67.202.81" ], "ssl": { "validity": { "start_date": "2026-08-17T10:42:17Z", "end_date": "2026-11-15T11:42:13Z" }, "serial_number": "96368256175026112925907532839092140915", "check_date": "2026-08-23T01:42:32Z" }, "ssl_last_change_date": "2026-08-23T01:43:18Z" }, "type": 1, "subdomain_level_count": 0, "dns": { "a": { "update_date": "2026-08-27T08:45:28Z", "ip_addresses": [ "104.21.76.243", "172.67.202.81" ] }, "aaaa": { "update_date": "2026-08-27T08:45:28Z", "ip_addresses": [ "2606:4700:3033::6815:4cf3", "2606:4700:3035::ac43:ca51" ] }, "ns": { "update_date": "2026-08-27T08:45:28Z", "name_servers": [ "cora.ns.cloudflare.com", "miles.ns.cloudflare.com" ] }, "mx": { "update_date": "2026-08-27T08:45:28Z", "mail_servers": [] }, "soa": { "update_date": "2026-08-27T08:45:28Z", "mnames": [ "cora.ns.cloudflare.com" ], "rnames": [ "dns.cloudflare.com" ], "rname_emails": [ "user@cloudflare.com" ] }, "txt": { "update_date": "2026-08-27T08:45:28Z", "values": [] }, "cname": { "update_date": "2026-08-27T08:45:28Z", "values": [] }, "others": [] }, "dns_last_change_date": "2026-08-22T22:29:34Z", "ip_history": [ "104.21.76.243", "172.67.202.81" ], "ssl": { "tags": [ "dla" ], "fqdns": [ "kaista-kasino.fi" ], "version": 3, "serial_number": "96368256175026112925907532839092140915", "fingerprint": { "sha256": "773bf54e8049c64c4ff2d50d30f3df8e73fb90f37f557d3decd289b303970bd5", "sha1": "852be73b66026915aff2bd9e8fe6413e0b9cc9cc", "md5": "600c0a0f80312fa3abb1dbb1b3d0cb1d" }, "validity": { "start_date": "2026-08-17T10:42:17Z", "end_date": "2026-11-15T11:42:13Z", "length": 7779596 }, "signature": { "is_self_signed": false, "is_valid": true, "value": "MEYCIQDXVorKqaN+wyu+TOXInF6zbILRBcZBwkvJ/86QMknHnAIhAO1rv7ep8K2Q/9uXBLFZlDRNO6f/bwygdZKH7NjMn66T", "algorithm": { "oid": "1.2.840.10045.4.3.2", "name": "sha256" } }, "issuer_dn": "CN=WE1,O=Google Trust Services,C=US", "issuer": { "common_name": "WE1", "country": "US", "state": null, "locality": null, "organization": "Google Trust Services", "organizational_unit": null }, "subject_dn": "CN=kaista-kasino.fi", "subject": { "common_name": "kaista-kasino.fi", "country": null, "state": null, "locality": null, "organization": null, "organizational_unit": null }, "extensions": { "authority_key_id": "kHeSNWfE/6jMqeZ72YB5e8yT+Tg=", "basic_constraints": { "is_ca": false }, "certificate_policies": [ "2.23.140.1.2.1" ], "extended_key_usage": { "client_auth": null, "server_auth": true }, "key_usage": { "digital_signature": true, "content_commitment": false, "key_agreement": false, "data_encipherment": false, "key_encipherment": false, "key_cert_sign": false, "crl_sign": false }, "signed_certificate_timestamps": [ "2026-08-17T11:42:18Z" ], "subject_alt_name": { "dns_names": [ "kaista-kasino.fi" ] }, "subject_key_id": "BaDm2hmv/SCWvVdq2GoyhJjDx/k=" }, "check_date": "2026-08-23T01:42:32Z" }, "ssl_last_change_date": "2026-08-23T01:43:18Z", "webdata": { "connection_status": "success", "html": { "source_code_hash": "dadcb65033d007d6940e20fb30ff62daab4f96d459c0e3da70987cf0b25b350a" }, "http": { "status_code_first": 301, "status_code_last": 200, "redirection_history": [ { "url": "http://kaista-kasino.fi/", "status_code": 301 }, { "url": "https://kaista-kasino.fi/", "status_code": 200 } ], "external_redirection": false, "final_url": "https://kaista-kasino.fi/", "final_fqdn": "kaista-kasino.fi", "final_domain": "kaista-kasino.fi", "headers": { "others": [ { "name": "date", "value": "Sat, 22 Aug 2026 22:31:55 GMT" }, { "name": "transfer_encoding", "value": "chunked" }, { "name": "connection", "value": "keep-alive" }, { "name": "report_to", "value": "{\"group\":\"cf-nel\",\"max_age\":604800,\"endpoints\":[{\"url\":\"https://a.nel.cloudflare.com/report/v4?s=0H0dA1RlCQTevy%2F2ozJiMUavceU72AkYi1HnnmvVB%2Bv%2FRyBIew1%2B4KMslm8SSDedgdMaMC2BYwsevQcBh6o7AGr8HByfSRDoJP89aUiIZmdc8gzGjLXFoYKJs%2B06YBJdG%2Fbn\"}]}" }, { "name": "nel", "value": "{\"report_to\":\"cf-nel\",\"success_fraction\":0.0,\"max_age\":604800}" }, { "name": "vary", "value": "accept-encoding" }, { "name": "cf_cache_status", "value": "DYNAMIC" }, { "name": "cf_ray", "value": "a2f5549e19abda7a-ORD" }, { "name": "alt_svc", "value": "h3=\":443\"; ma=86400" } ], "access_control_allow_headers": null, "access_control_allow_methods": null, "access_control_allow_origin": "*", "cache_control": "public, max-age=0, must-revalidate", "clear_site_data": null, "content_encoding": "gzip", "content_security_policy": null, "content_type": "text/html; charset=utf-8", "cross_origin_embedder_policy": null, "cross_origin_opener_policy": null, "cross_origin_resource_policy": null, "expect_ct": null, "feature_policy": null, "last_modified": null, "permission_policy": null, "referrer_policy": "strict-origin-when-cross-origin", "server": "cloudflare", "set_cookie": null, "strict_transport_security": null, "x_content_type_options": "nosniff", "x_download_options": null, "x_frame_options": "SAMEORIGIN", "x_permitted_cross_domain_policies": null, "x_powered_by": null, "x_xss_protection": null }, "cookies": [] } } }, { "punycode": "sancti.fi", "unicode": "sancti.fi", "is_idn": false, "subdomain": null, "subdomain_last": null, "subdomain_root": null, "name": { "punycode": "sancti", "unicode": "sancti", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 6, "lang": "de", "keywords": [ "sancti" ], "keyword_count": 1, "latinized": [], "contains_confusable": false }, "domain": { "punycode": "sancti.fi", "unicode": "sancti.fi", "is_idn": false, "name": { "punycode": "sancti", "unicode": "sancti", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 6, "lang": "de", "keywords": [ "sancti" ], "keyword_count": 1 }, "extension": { "punycode": "fi", "unicode": "fi", "is_idn": false }, "extension_root": { "punycode": "fi", "unicode": "fi", "is_idn": false }, "extension_sub": null, "extension_type": 2, "reserved": null, "premium": null, "registered": true, "whois": { "create_date": "2025-12-19T21:31:47Z", "update_date": "2025-12-30T18:47:50Z", "expiry_date": "2026-12-19T21:31:47Z", "registrar": "eurodns s.a.", "registrant": { "name": "cloudflare, inc.", "organization": "cloudflare, inc.", "street": null, "city": null, "state": null, "postal_code": null, "country": null, "phone": null, "email": null }, "name_servers": [ "mary.ns.cloudflare.com", "patrick.ns.cloudflare.com" ], "domain_status": [ "registered" ], "whois_server": null, "check_date": "2026-06-24T00:23:43Z" }, "whois_normalized": { "registrant": { "organization": "cloudflareinc", "phone": null, "email": null, "email_fqdn_apex": null, "email_domain_apex": null } }, "whois_last_check_date": "2026-06-24T00:23:43Z", "whois_create_date_historical": [ "2025-12-19T21:31:47Z" ], "whois_last_change_date": "2026-06-22T23:48:05Z", "whois_registrant_email_historical": [], "whois_privacy_enabled": true, "dns": { "a": { "update_date": "2026-09-15T15:58:10Z", "ip_addresses": [ "65.21.145.130" ] } }, "dns_last_change_date": "2026-09-15T16:46:50Z", "ip_history": [ "65.21.145.130" ], "ssl": { "validity": { "start_date": "2026-08-16T13:30:55Z", "end_date": "2026-11-14T13:30:54Z" }, "serial_number": "604394845013922616533689067959736376631421", "check_date": "2026-09-14T15:46:50Z" }, "ssl_last_change_date": "2026-09-14T15:47:40Z" }, "type": 1, "subdomain_level_count": 0, "dns": { "a": { "update_date": "2026-09-15T15:58:10Z", "ip_addresses": [ "65.21.145.130" ] }, "aaaa": { "update_date": "2026-09-15T15:58:10Z", "ip_addresses": [] }, "ns": { "update_date": "2026-09-15T15:58:10Z", "name_servers": [ "mary.ns.cloudflare.com", "patrick.ns.cloudflare.com" ] }, "mx": { "update_date": "2026-09-15T15:58:10Z", "mail_servers": [ "route2.mx.cloudflare.net", "route3.mx.cloudflare.net", "route1.mx.cloudflare.net" ] }, "soa": { "update_date": "2026-09-15T15:58:10Z", "mnames": [ "mary.ns.cloudflare.com" ], "rnames": [ "dns.cloudflare.com" ], "rname_emails": [ "user@cloudflare.com" ] }, "txt": { "update_date": "2026-09-15T15:58:10Z", "values": [ "\"brevo-code:3db326e21e3fe3a0330542284feae107\"", "\"v=spf1 include:_spf.mx.cloudflare.net ~all\"" ] }, "cname": { "update_date": "2026-09-15T15:58:10Z", "values": [] }, "others": [] }, "dns_last_change_date": "2026-09-15T16:46:47Z", "ip_history": [ "65.21.145.130" ], "ssl": { "tags": [ "dla" ], "fqdns": [ "sancti.fi" ], "version": 3, "serial_number": "604394845013922616533689067959736376631421", "fingerprint": { "sha256": "849a45cff208df5385c3fc74ae1c828e89933e0e46d458741e6fa2a6dd5581bf", "sha1": "8c8485463247e6d194a0732fddbb87464346adeb", "md5": "1a9b971519d92c874b1e0156439ea840" }, "validity": { "start_date": "2026-08-16T13:30:55Z", "end_date": "2026-11-14T13:30:54Z", "length": 7775999 }, "signature": { "is_self_signed": false, "is_valid": true, "value": "MGUCMD0oBmVeGnAeXiS546SSc2XUz2BpcynEDkfCkFJz9jC9Aym1SDB8Xgea36AvbFr4owIxAILqCe6Scfb7Iezs/jaX19B5rF8NdpWPxCRKQH+YPcq9BfHVcY2TX0cHgpg6LfB8OA==", "algorithm": { "oid": "1.2.840.10045.4.3.3", "name": "sha384" } }, "issuer_dn": "CN=YE1,O=Let's Encrypt,C=US", "issuer": { "common_name": "YE1", "country": "US", "state": null, "locality": null, "organization": "Let's Encrypt", "organizational_unit": null }, "subject_dn": "CN=sancti.fi", "subject": { "common_name": "sancti.fi", "country": null, "state": null, "locality": null, "organization": null, "organizational_unit": null }, "extensions": { "authority_key_id": "uyDKRwv+1+Wc+Y8JKqOMN0WxvNg=", "basic_constraints": { "is_ca": false }, "certificate_policies": [ "2.23.140.1.2.1" ], "extended_key_usage": { "client_auth": null, "server_auth": true }, "key_usage": { "digital_signature": true, "content_commitment": false, "key_agreement": false, "data_encipherment": false, "key_encipherment": false, "key_cert_sign": false, "crl_sign": false }, "signed_certificate_timestamps": [ "2026-08-16T14:29:25Z", "2026-08-16T14:29:24Z" ], "subject_alt_name": { "dns_names": [ "sancti.fi" ] }, "subject_key_id": "mYGCI7q19ww15FcLk/5cMiaB0HQ=" }, "check_date": "2026-09-14T15:46:50Z" }, "ssl_last_change_date": "2026-09-14T15:47:38Z", "webdata": { "connection_status": "success", "html": { "source_code_hash": "435c67bda478f0993666a16233d4e5eb6c51664e34b37a762bb7fb98d7c94255" }, "http": { "status_code_first": 308, "status_code_last": 200, "redirection_history": [ { "url": "http://sancti.fi/", "status_code": 308 }, { "url": "https://sancti.fi/", "status_code": 302 }, { "url": "https://sancti.fi/app/", "status_code": 200 } ], "external_redirection": false, "final_url": "https://sancti.fi/app/", "final_fqdn": "sancti.fi", "final_domain": "sancti.fi", "headers": { "others": [ { "name": "alt_svc", "value": "h3=\":443\"; ma=2592000" }, { "name": "content_length", "value": "1198" }, { "name": "date", "value": "Wed, 08 Jul 2026 00:38:11 GMT" }, { "name": "permissions_policy", "value": "autoplay=(), camera=(), microphone=(), usb=()" }, { "name": "vary", "value": "Origin, Accept-Encoding" }, { "name": "via", "value": "1.1 Caddy" } ], "access_control_allow_headers": null, "access_control_allow_methods": null, "access_control_allow_origin": null, "cache_control": null, "clear_site_data": null, "content_encoding": "gzip", "content_security_policy": null, "content_type": "text/html", "cross_origin_embedder_policy": null, "cross_origin_opener_policy": null, "cross_origin_resource_policy": null, "expect_ct": null, "feature_policy": null, "last_modified": null, "permission_policy": null, "referrer_policy": "same-origin", "server": null, "set_cookie": null, "strict_transport_security": null, "x_content_type_options": "nosniff", "x_download_options": null, "x_frame_options": "DENY", "x_permitted_cross_domain_policies": null, "x_powered_by": null, "x_xss_protection": null }, "cookies": [] } } }, { "punycode": "cloudflaredemo.win", "unicode": "cloudflaredemo.win", "is_idn": false, "subdomain": null, "subdomain_last": null, "subdomain_root": null, "name": { "punycode": "cloudflaredemo", "unicode": "cloudflaredemo", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 14, "lang": "en", "keywords": [ "cloudflare", "demo" ], "keyword_count": 2, "latinized": [], "contains_confusable": false }, "domain": { "punycode": "cloudflaredemo.win", "unicode": "cloudflaredemo.win", "is_idn": false, "name": { "punycode": "cloudflaredemo", "unicode": "cloudflaredemo", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 14, "lang": "en", "keywords": [ "cloudflare", "demo" ], "keyword_count": 2 }, "extension": { "punycode": "win", "unicode": "win", "is_idn": false }, "extension_root": { "punycode": "win", "unicode": "win", "is_idn": false }, "extension_sub": null, "extension_type": 1, "reserved": null, "premium": null, "registered": true, "whois": { "create_date": "2023-05-13T05:09:49Z", "update_date": "2026-02-17T12:01:01Z", "expiry_date": "2027-05-13T05:09:49Z", "registrar": "cloudflare, inc.", "registrant": { "name": "redacted for privacy", "organization": "cloudflare, inc.", "street": "redacted for privacy", "city": "redacted for privacy", "state": "ca", "postal_code": "redacted for privacy", "country": "us", "phone": "redacted for privacy", "email": null }, "name_servers": [ "thomas.ns.cloudflare.com", "vita.ns.cloudflare.com" ], "domain_status": [ "clienttransferprohibited" ], "whois_server": "whois.cloudflare.com", "check_date": "2026-04-11T16:36:44Z" }, "whois_normalized": { "registrant": { "organization": "cloudflareinc", "phone": null, "email": null, "email_fqdn_apex": null, "email_domain_apex": null } }, "whois_last_check_date": "2026-04-11T16:36:44Z", "whois_create_date_historical": [ "2023-05-13T05:09:49Z" ], "whois_last_change_date": "2026-04-11T14:26:02Z", "whois_registrant_email_historical": [ "please query the rdds service of the registrar of record identified in this output for information on how to contact the registrant, admin, or tech contact of the queried domain name." ], "whois_privacy_enabled": true, "dns": { "a": { "update_date": "2026-08-12T08:45:42Z", "ip_addresses": [] } }, "dns_last_change_date": "2026-08-12T08:46:19Z", "ip_history": [], "ssl": null, "ssl_last_change_date": null }, "type": 1, "subdomain_level_count": 0, "dns": { "a": { "update_date": "2026-08-12T08:45:42Z", "ip_addresses": [] }, "aaaa": { "update_date": "2026-08-12T08:45:42Z", "ip_addresses": [] }, "ns": { "update_date": "2026-08-12T08:45:42Z", "name_servers": [ "thomas.ns.cloudflare.com", "vita.ns.cloudflare.com" ] }, "mx": { "update_date": "2026-08-12T08:45:42Z", "mail_servers": [] }, "soa": { "update_date": "2026-08-12T08:45:42Z", "mnames": [ "thomas.ns.cloudflare.com" ], "rnames": [ "dns.cloudflare.com" ], "rname_emails": [ "user@cloudflare.com" ] }, "txt": { "update_date": "2026-08-12T08:45:42Z", "values": [] }, "cname": { "update_date": "2026-08-12T08:45:42Z", "values": [] }, "others": [] }, "dns_last_change_date": "2026-08-12T08:46:17Z", "ip_history": [], "ssl": null, "ssl_last_change_date": null, "webdata": { "connection_status": "not_resolved", "html": null, "http": null } } ] } ``` ## Related Examples - [Registered Through GoDaddy](/reference/discovery/domain-search/examples/domain-whois-registrar/) - [Registrants in One City](/reference/discovery/domain-search/examples/domain-whois-registrant-city/) - [Registrants in One State](/reference/discovery/domain-search/examples/domain-whois-registrant-state/) - [Registrants in Germany](/reference/discovery/domain-search/examples/domain-whois-registrant-country/) - [Domains on Client Hold](/reference/discovery/domain-search/examples/domain-whois-domain-status/) - [Registrant E-mail Host](/reference/discovery/domain-search/examples/domain-whois-normalized-registrant-email-fqdn-apex/)