# Domain Names Containing Letters Matches records whose domain.name.contains_letter equals true. Source: https://docs.deepinfo.com/reference/discovery/domain-search/examples/domain-name-contains-letter/ Last updated: 2026-09-26 --- `POST https://api.deepinfo.com/v1/discovery/domain-search?page_size=25` Example 9 of 20 in **Filters › Name & Extension** · [Domain Search Examples](/reference/discovery/domain-search/examples/) · endpoint: [Domain Search](/reference/discovery/domain-search/) Tags: `field` `domain.name.contains_letter` · `operator` `eq` Matches records whose `domain.name.contains_letter` equals `true`. In the response, look at `results[].domain.name.contains_letter`. ## Request | Parameter | In | Value | |---|---|---| | `page_size` | query | `25` | | `filters.must[0].name` | body | `domain.name.contains_letter` | | `filters.must[0].type` | body | `eq` | | `filters.must[0].value` | body | `true` | ```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.name.contains_letter", "type": "eq", "value": true } ] } }' ``` ## Response ### 200 · OK > Shortened for this page: results: 3 of 25 shown; results[].webdata.http.headers.others: first 10 items `Content-Type: application/json` · `ratelimit-limit: 1000` · `ratelimit-remaining: 999` · `ratelimit-reset: 1` · `x-ratelimit-limit-hour: 100000` · `x-ratelimit-limit-minute: 10000` · `x-ratelimit-limit-second: 1000` · `x-ratelimit-remaining-hour: 99991` · `x-ratelimit-remaining-minute: 9991` · `x-ratelimit-remaining-second: 999` · `deepinfo-request-id: 5f0c6a8e-1b2d-4c3e-9f4a-7b8c9d0e1f2a` ```json { "page": 1, "page_size": 25, "result_count": 1920900603, "results": [ { "punycode": "yxmh.cn", "unicode": "yxmh.cn", "is_idn": false, "subdomain": null, "subdomain_last": null, "subdomain_root": null, "name": { "punycode": "yxmh", "unicode": "yxmh", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 4, "lang": "hu", "keywords": [ "yx", "mh" ], "keyword_count": 2, "latinized": [], "contains_confusable": false }, "domain": { "punycode": "yxmh.cn", "unicode": "yxmh.cn", "is_idn": false, "name": { "punycode": "yxmh", "unicode": "yxmh", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 4, "lang": "hu", "keywords": [ "yx", "mh" ], "keyword_count": 2 }, "extension": { "punycode": "cn", "unicode": "cn", "is_idn": false }, "extension_root": { "punycode": "cn", "unicode": "cn", "is_idn": false }, "extension_sub": null, "extension_type": 2, "reserved": null, "premium": null, "registered": true, "whois": { "create_date": "2012-06-29T14:13:16Z", "update_date": null, "expiry_date": "2027-06-29T14:13:16Z", "registrar": "成都西维数码科技有限公司", "registrant": { "name": "REDACTED FOR PRIVACY", "organization": null, "street": null, "city": null, "state": null, "postal_code": null, "country": null, "phone": null, "email": "REDACTED FOR PRIVACY" }, "name_servers": [ "ns301.myhostadmin.net", "ns302.myhostadmin.net" ], "domain_status": [ "ok" ], "whois_server": null, "check_date": "2026-06-30T06:49:50Z" }, "whois_normalized": { "registrant": { "organization": null, "phone": null, "email": "REDACTED FOR PRIVACY", "email_fqdn_apex": "REDACTED FOR PRIVACY", "email_domain_apex": "REDACTED FOR PRIVACY" } }, "whois_last_check_date": "2026-06-30T06:49:50Z", "whois_create_date_historical": [ "2012-06-29T14:13:16Z" ], "whois_last_change_date": "2026-06-30T06:50:07Z", "whois_registrant_email_historical": [ "user@qq.com" ], "whois_privacy_enabled": false, "dns": { "a": { "update_date": "2026-09-14T18:36:10Z", "ip_addresses": [] } }, "dns_last_change_date": "2026-09-14T19:37:44Z", "ip_history": [ "123.206.63.98", "152.136.120.58", "82.156.32.7", "219.234.31.63" ], "ssl": null, "ssl_last_change_date": null }, "type": 1, "subdomain_level_count": 0, "dns": { "a": { "update_date": "2026-09-14T18:36:10Z", "ip_addresses": [] }, "aaaa": { "update_date": "2026-09-14T18:36:10Z", "ip_addresses": [] }, "ns": { "update_date": "2026-09-14T18:36:10Z", "name_servers": [ "ns1.myhostadmin.net", "ns2.myhostadmin.net", "ns3.myhostadmin.net", "ns4.myhostadmin.net", "ns5.myhostadmin.net", "ns6.myhostadmin.net" ] }, "mx": { "update_date": "2026-09-14T18:36:10Z", "mail_servers": [] }, "soa": { "update_date": "2026-09-14T18:36:10Z", "mnames": [ "ns4.myhostadmin.net" ], "rnames": [ "user.myhostadmin.net" ], "rname_emails": [ "user@myhostadmin.net" ] }, "txt": { "update_date": "2026-09-14T18:36:10Z", "values": [] }, "cname": { "update_date": "2026-09-14T18:36:10Z", "values": [] }, "others": [] }, "dns_last_change_date": "2026-09-14T19:37:42Z", "ip_history": [ "123.206.63.98", "152.136.120.58", "82.156.32.7", "219.234.31.63" ], "ssl": null, "ssl_last_change_date": null, "webdata": { "connection_status": "success", "html": { "source_code_hash": "5a97a836c882abbb4dd6297bec32dc9062c74566218ed3b05f53c8e769a3afb0" }, "http": { "status_code_first": 302, "status_code_last": 200, "redirection_history": [ { "url": "http://yxmh.cn/", "status_code": 302 }, { "url": "http://stopnote.vhostgo.com/?host=yxmh.cn&refer=", "status_code": 301 }, { "url": "https://stopnote.vhostgo.com/?host=yxmh.cn&refer=", "status_code": 200 } ], "external_redirection": true, "final_url": "https://stopnote.vhostgo.com/?host=yxmh.cn&refer=", "final_fqdn": "stopnote.vhostgo.com", "final_domain": "vhostgo.com", "headers": { "others": [ { "name": "date", "value": "Thu, 13 Aug 2026 00:30:02 GMT" }, { "name": "content_length", "value": "2577" }, { "name": "connection", "value": "keep-alive" }, { "name": "vary", "value": "Accept-Encoding, Accept-Encoding" } ], "access_control_allow_headers": null, "access_control_allow_methods": null, "access_control_allow_origin": null, "cache_control": "private", "clear_site_data": null, "content_encoding": "gzip", "content_security_policy": "upgrade-insecure-requests", "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": null, "server": "wts", "set_cookie": "ASPSESSIONIDQAQRSRRD=; path=/", "strict_transport_security": null, "x_content_type_options": null, "x_download_options": null, "x_frame_options": null, "x_permitted_cross_domain_policies": null, "x_powered_by": null, "x_xss_protection": null }, "cookies": [ { "name": "ASPSESSIONIDQAQRSRRD", "value": "" } ] } } }, { "punycode": "shengjieai.top", "unicode": "shengjieai.top", "is_idn": false, "subdomain": null, "subdomain_last": null, "subdomain_root": null, "name": { "punycode": "shengjieai", "unicode": "shengjieai", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 10, "lang": "sv", "keywords": [ "sheng", "jie", "ai" ], "keyword_count": 3, "latinized": [], "contains_confusable": false }, "domain": { "punycode": "shengjieai.top", "unicode": "shengjieai.top", "is_idn": false, "name": { "punycode": "shengjieai", "unicode": "shengjieai", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 10, "lang": "sv", "keywords": [ "sheng", "jie", "ai" ], "keyword_count": 3 }, "extension": { "punycode": "top", "unicode": "top", "is_idn": false }, "extension_root": { "punycode": "top", "unicode": "top", "is_idn": false }, "extension_sub": null, "extension_type": 1, "reserved": null, "premium": null, "registered": true, "whois": { "create_date": "2025-08-10T10:14:24Z", "update_date": "2026-08-11T11:40:51Z", "expiry_date": "2027-08-10T10:14:24Z", "registrar": "alibaba cloud computing ltd. d/b/a hichina (www.net.cn)", "registrant": { "name": "redacted for privacy", "organization": "redacted for privacy", "street": "redacted for privacy", "city": "redacted for privacy", "state": "fu jian", "postal_code": "redacted for privacy", "country": "cn", "phone": "redacted for privacy", "email": "REDACTED FOR PRIVACY" }, "name_servers": [ "dns1.hichina.com", "dns2.hichina.com" ], "domain_status": [ "autorenewperiod", "ok" ], "whois_server": "whois.aliyun.com/", "check_date": "2026-08-18T10:09:04Z" }, "whois_normalized": { "registrant": { "organization": "redactedforprivacy", "phone": null, "email": null, "email_fqdn_apex": null, "email_domain_apex": null } }, "whois_last_check_date": "2026-08-18T10:09:04Z", "whois_create_date_historical": [ "2025-08-10T10:14:24Z" ], "whois_last_change_date": "2026-08-18T10:12:59Z", "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": "2026-09-14T18:33:31Z", "ip_addresses": [ "47.113.205.124" ] } }, "dns_last_change_date": "2026-09-14T19:37:38Z", "ip_history": [ "47.113.205.124" ], "ssl": null, "ssl_last_change_date": null }, "type": 1, "subdomain_level_count": 0, "dns": { "a": { "update_date": "2026-09-14T18:33:31Z", "ip_addresses": [ "47.113.205.124" ] }, "aaaa": { "update_date": "2026-09-14T18:33:31Z", "ip_addresses": [] }, "ns": { "update_date": "2026-09-14T18:33:31Z", "name_servers": [ "dns1.hichina.com", "dns2.hichina.com" ] }, "mx": { "update_date": "2026-09-14T18:33:31Z", "mail_servers": [] }, "soa": { "update_date": "2026-09-14T18:33:31Z", "mnames": [ "dns1.hichina.com" ], "rnames": [ "hostmaster.hichina.com" ], "rname_emails": [ "user@hichina.com" ] }, "txt": { "update_date": "2026-09-14T18:33:31Z", "values": [] }, "cname": { "update_date": "2026-09-14T18:33:31Z", "values": [] }, "others": [] }, "dns_last_change_date": "2026-09-14T19:37:35Z", "ip_history": [ "47.113.205.124" ], "ssl": null, "ssl_last_change_date": null, "webdata": { "connection_status": "success", "html": { "source_code_hash": "6f76c76d4e0bcb21fa841cedc005978e938bfd71b82fd6a274ca76c53ff4d6b1" }, "http": { "status_code_first": 301, "status_code_last": 200, "redirection_history": [ { "url": "http://shengjieai.top/", "status_code": 301 }, { "url": "https://shengjieai.top/", "status_code": 200 } ], "external_redirection": false, "final_url": "https://shengjieai.top/", "final_fqdn": "shengjieai.top", "final_domain": "shengjieai.top", "headers": { "others": [ { "name": "date", "value": "Thu, 13 Aug 2026 17:31:32 GMT" }, { "name": "transfer_encoding", "value": "chunked" }, { "name": "connection", "value": "keep-alive" }, { "name": "origin_agent_cluster", "value": "?1" }, { "name": "x_dns_prefetch_control", "value": "off" }, { "name": "access_control_allow_credentials", "value": "true" }, { "name": "access_control_max_age", "value": "86400" }, { "name": "accept_ranges", "value": "bytes" }, { "name": "etag", "value": "W/\"4f3-19ebbc74bc8\"" }, { "name": "vary", "value": "Accept-Encoding" } ], "access_control_allow_headers": "Content-Type, Authorization, X-Merchant-Id, X-Saas-Tenant-Authorization, X-Openid, X-User-Openid, X-Web-Locale, Accept, Origin, X-Requested-With, Cache-Control, Pragma", "access_control_allow_methods": "GET, POST, PUT, DELETE, OPTIONS, HEAD, PATCH", "access_control_allow_origin": "*", "cache_control": "public, max-age=0", "clear_site_data": null, "content_encoding": "gzip", "content_security_policy": "default-src 'self';script-src 'self' 'unsafe-inline' 'unsafe-eval';script-src-attr 'unsafe-inline';style-src 'self' 'unsafe-inline';img-src 'self' data: https: http:;connect-src 'self' https: http: ws: wss:;font-src 'self' https: http: data:;object-src 'none';media-src 'self' https: http: blob:;frame-src 'none';base-uri 'self';form-action 'self';frame-ancestors 'self';upgrade-insecure-requests", "content_type": "text/html; charset=UTF-8", "cross_origin_embedder_policy": null, "cross_origin_opener_policy": "same-origin", "cross_origin_resource_policy": "same-origin", "expect_ct": null, "feature_policy": null, "last_modified": "Fri, 12 Jun 2026 12:21:01 GMT", "permission_policy": null, "referrer_policy": "no-referrer", "server": "nginx", "set_cookie": null, "strict_transport_security": "max-age=15552000; includeSubDomains", "x_content_type_options": "nosniff", "x_download_options": "noopen", "x_frame_options": "SAMEORIGIN", "x_permitted_cross_domain_policies": "none", "x_powered_by": null, "x_xss_protection": "0" }, "cookies": [] } } }, { "punycode": "hopvoice.fr", "unicode": "hopvoice.fr", "is_idn": false, "subdomain": null, "subdomain_last": null, "subdomain_root": null, "name": { "punycode": "hopvoice", "unicode": "hopvoice", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 8, "lang": "en", "keywords": [ "hop", "voice" ], "keyword_count": 2, "latinized": [], "contains_confusable": false }, "domain": { "punycode": "hopvoice.fr", "unicode": "hopvoice.fr", "is_idn": false, "name": { "punycode": "hopvoice", "unicode": "hopvoice", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 8, "lang": "en", "keywords": [ "hop", "voice" ], "keyword_count": 2 }, "extension": { "punycode": "fr", "unicode": "fr", "is_idn": false }, "extension_root": { "punycode": "fr", "unicode": "fr", "is_idn": false }, "extension_sub": null, "extension_type": 2, "reserved": null, "premium": null, "registered": true, "whois": { "create_date": "2026-03-31T20:36:41Z", "update_date": "2026-04-05T20:42:25Z", "expiry_date": "2027-03-31T20:36:41Z", "registrar": "ovh", "registrant": { "name": "REDACTED FOR PRIVACY", "organization": "REDACTED FOR PRIVACY", "street": "REDACTED FOR PRIVACY", "city": "saint aunes", "state": null, "postal_code": "REDACTED FOR PRIVACY", "country": "fr", "phone": "REDACTED FOR PRIVACY", "email": "REDACTED FOR PRIVACY" }, "name_servers": [ "arnold.ns.cloudflare.com", "love.ns.cloudflare.com" ], "domain_status": [ "active" ], "whois_server": null, "check_date": "2026-06-30T10:51:00Z" }, "whois_normalized": { "registrant": { "organization": "REDACTED FOR PRIVACY", "phone": "REDACTED FOR PRIVACY", "email": "REDACTED FOR PRIVACY", "email_fqdn_apex": "REDACTED FOR PRIVACY", "email_domain_apex": "REDACTED FOR PRIVACY" } }, "whois_last_check_date": "2026-06-30T10:51:00Z", "whois_create_date_historical": [ "2026-03-31T20:36:41Z" ], "whois_last_change_date": "2026-06-30T10:52:03Z", "whois_registrant_email_historical": [ "user@outlook.com" ], "whois_privacy_enabled": false, "dns": { "a": { "update_date": "2026-09-14T19:06:29Z", "ip_addresses": [ "216.150.1.1", "216.150.16.1" ] } }, "dns_last_change_date": "2026-09-14T19:37:42Z", "ip_history": [ "216.198.79.1", "64.29.17.1", "216.198.79.65", "64.29.17.65", "216.150.1.1", "216.150.16.1", "216.150.1.193", "216.150.16.193" ], "ssl": null, "ssl_last_change_date": null }, "type": 1, "subdomain_level_count": 0, "dns": { "a": { "update_date": "2026-09-14T19:06:29Z", "ip_addresses": [ "216.150.1.1", "216.150.16.1" ] }, "aaaa": { "update_date": "2026-09-14T19:06:29Z", "ip_addresses": [] }, "ns": { "update_date": "2026-09-14T19:06:29Z", "name_servers": [ "arnold.ns.cloudflare.com", "love.ns.cloudflare.com" ] }, "mx": { "update_date": "2026-09-14T19:06:29Z", "mail_servers": [ "mx1.mail.ovh.net", "mx2.mail.ovh.net", "mx3.mail.ovh.net" ] }, "soa": { "update_date": "2026-09-14T19:06:29Z", "mnames": [ "arnold.ns.cloudflare.com" ], "rnames": [ "dns.cloudflare.com" ], "rname_emails": [ "user@cloudflare.com" ] }, "txt": { "update_date": "2026-09-14T19:06:29Z", "values": [ "\"1|www.hopvoice.fr\"", "\"v=spf1 include:mx.ovh.com -all\"" ] }, "cname": { "update_date": "2026-09-14T19:06:29Z", "values": [] }, "others": [] }, "dns_last_change_date": "2026-09-14T19:37:40Z", "ip_history": [ "216.198.79.1", "64.29.17.1", "216.198.79.65", "64.29.17.65", "216.150.1.1", "216.150.16.1", "216.150.1.193", "216.150.16.193" ], "ssl": null, "ssl_last_change_date": null, "webdata": { "connection_status": "success", "html": { "source_code_hash": "b217c03de38249d8304a08c12a189b03d0990dd8e2d5702c2d85a43a7331092c" }, "http": { "status_code_first": 308, "status_code_last": 200, "redirection_history": [ { "url": "http://hopvoice.fr/", "status_code": 308 }, { "url": "https://hopvoice.fr/", "status_code": 200 } ], "external_redirection": false, "final_url": "https://hopvoice.fr/", "final_fqdn": "hopvoice.fr", "final_domain": "hopvoice.fr", "headers": { "others": [ { "name": "age", "value": "0" }, { "name": "date", "value": "Sun, 23 Aug 2026 22:48:19 GMT" }, { "name": "link", "value": "; rel=preload; as=\"font\"; crossorigin=\"\"; type=\"font/woff2\"" }, { "name": "vary", "value": "RSC, Next-Router-State-Tree, Next-Router-Prefetch" }, { "name": "x_matched_path", "value": "/" }, { "name": "x_vercel_cache", "value": "MISS" }, { "name": "x_vercel_id", "value": "sfo1::cdg1::sk7n2-1787525298949-838cec3aea40" }, { "name": "transfer_encoding", "value": "chunked" } ], "access_control_allow_headers": null, "access_control_allow_methods": null, "access_control_allow_origin": null, "cache_control": "private, no-cache, no-store, 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": null, "server": "Vercel", "set_cookie": null, "strict_transport_security": "max-age=63072000", "x_content_type_options": null, "x_download_options": null, "x_frame_options": null, "x_permitted_cross_domain_policies": null, "x_powered_by": "Next.js", "x_xss_protection": null }, "cookies": [] } } } ] } ``` ## Related Examples - [Same Name Across All Extensions](/reference/discovery/domain-search/examples/domain-name/) - [Domain Names Containing Digits](/reference/discovery/domain-search/examples/domain-name-contains-number/) - [Internationalized Domains Only](/reference/discovery/domain-search/examples/domain-is-idn/) - [Domain Names Containing a Hyphen](/reference/discovery/domain-search/examples/domain-name-contains-hyphen/) - [All FQDNs Under One Domain](/reference/discovery/domain-search/examples/domain/) - [Names With Confusable Characters](/reference/discovery/domain-search/examples/name-contains-confusable/)