# A Subdomain The record of www.deepinfo.com: a subdomain (type: 2) with its own DNS, certificate and web data, and the WHOIS of deepinfo.com. Source: https://docs.deepinfo.com/reference/discovery/domain-detail/examples/subdomain/ Last updated: 2026-09-26 --- `GET https://api.deepinfo.com/v1/discovery/domain-detail?domain=www.deepinfo.com` The record of www.deepinfo.com: a subdomain (`type: 2`) with its own DNS, certificate and web data, and the WHOIS of deepinfo.com. Example 2 of 4 · [Domain Detail Examples](/reference/discovery/domain-detail/examples/) · endpoint: [Domain Detail](/reference/discovery/domain-detail/) Tags: `param` `domain` · `value` `www.deepinfo.com` Asks for the record of `www.deepinfo.com`. A subdomain has `type: 2`, `subdomain_level_count: 1` and a `subdomain` object that describes its label (`www`). DNS, SSL and web data are the subdomain’s own: its certificate is issued for `www.deepinfo.com`, and its DNS record has A addresses but no NS or MX. `domain` holds the registrable domain, `deepinfo.com`, with its WHOIS record: a subdomain has no WHOIS of its own. In the response, look at `type`, `subdomain`, `ssl.fqdns` and `domain.whois.registrar`. ## Request | Parameter | In | Value | |---|---|---| | `domain` | query | `www.deepinfo.com` | ```bash curl 'https://api.deepinfo.com/v1/discovery/domain-detail?domain=www.deepinfo.com' \ -H 'apikey: YOUR_API_KEY' \ -H 'Accept: application/json' ``` ## Response ### 200 · OK > Shortened for this page: ip_history: 3 of 5 shown `Content-Type: application/json` · `ratelimit-limit: 2` · `ratelimit-remaining: 1` · `ratelimit-reset: 1` · `x-ratelimit-limit-second: 2` · `x-ratelimit-remaining-second: 1` · `deepinfo-request-id: 5f0c6a8e-1b2d-4c3e-9f4a-7b8c9d0e1f2a` ```json { "punycode": "www.deepinfo.com", "unicode": "www.deepinfo.com", "is_idn": false, "subdomain": { "punycode": "www", "unicode": "www", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 3 }, "subdomain_last": { "punycode": "www", "unicode": "www", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 3 }, "subdomain_root": { "punycode": "www", "unicode": "www", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 3 }, "name": { "punycode": "www.deepinfo", "unicode": "www.deepinfo", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 11, "lang": "en", "keywords": [ "www", "deep", "info" ], "keyword_count": 3, "latinized": [], "contains_confusable": false }, "domain": { "punycode": "deepinfo.com", "unicode": "deepinfo.com", "is_idn": false, "name": { "punycode": "deepinfo", "unicode": "deepinfo", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 8, "lang": "en", "keywords": [ "deep", "info" ], "keyword_count": 2 }, "extension": { "punycode": "com", "unicode": "com", "is_idn": false }, "extension_root": { "punycode": "com", "unicode": "com", "is_idn": false }, "extension_sub": null, "extension_type": 1, "reserved": null, "premium": null, "registered": true, "whois": { "create_date": "2001-06-05T02:57:08Z", "update_date": "2025-08-19T07:33:45Z", "expiry_date": "2028-10-20T11:59:59Z", "registrar": "godaddy online services cayman islands ltd.", "registrant": { "name": null, "organization": null, "street": null, "city": null, "state": null, "postal_code": null, "country": null, "phone": null, "email": null }, "name_servers": [ "may.ns.cloudflare.com", "simon.ns.cloudflare.com" ], "domain_status": [ "clientdeleteprohibited", "clientrenewprohibited", "clienttransferprohibited", "clientupdateprohibited" ], "whois_server": "whois.uniregistrar.com", "check_date": "2026-08-10T21:24:49Z" }, "whois_normalized": { "registrant": null }, "whois_last_check_date": "2026-08-10T21:24:49Z", "whois_create_date_historical": null, "whois_last_change_date": "2026-08-10T21:01:51Z", "whois_registrant_email_historical": null, "whois_privacy_enabled": null, "dns": { "a": { "update_date": "2026-08-09T03:36:51Z", "ip_addresses": [ "104.26.10.21", "104.26.11.21", "172.67.70.198" ] } }, "dns_last_change_date": "2026-07-21T18:18:11Z", "ip_history": null, "ssl": { "validity": { "start_date": "2026-06-03T16:27:33Z", "end_date": "2026-09-01T17:27:27Z" }, "serial_number": "61855234530828088905432121166750302202", "check_date": "2026-08-10T22:12:37Z" }, "ssl_last_change_date": "2026-08-07T12:22:59Z" }, "type": 2, "subdomain_level_count": 1, "dns": { "a": { "update_date": "2026-07-21T22:18:13Z", "ip_addresses": [ "104.26.10.21", "104.26.11.21", "172.67.70.198" ] }, "aaaa": { "update_date": "2026-07-21T22:18:13Z", "ip_addresses": [ "2606:4700:20::681a:a15", "2606:4700:20::681a:b15", "2606:4700:20::ac43:46c6" ] }, "ns": { "update_date": "2026-07-21T22:18:13Z", "name_servers": [] }, "mx": { "update_date": "2026-07-21T22:18:13Z", "mail_servers": [] }, "soa": { "update_date": "2026-07-21T22:18:13Z", "mnames": [], "rnames": [], "rname_emails": [] }, "txt": { "update_date": "2026-07-21T22:18:13Z", "values": [] }, "cname": { "update_date": "2026-07-21T22:18:13Z", "values": [] }, "others": [ { "update_date": "2024-07-02T08:04:53Z", "values": [], "type": "DNSKEY" }, { "update_date": "2024-07-02T08:04:53Z", "values": [], "type": "DS" }, { "update_date": "2024-07-02T08:04:53Z", "values": [], "type": "SPF" }, { "update_date": "2024-07-02T08:04:53Z", "values": [ "\"RFC8482\" \"\"" ], "type": "HINFO" } ] }, "dns_last_change_date": "2024-06-14T08:09:28Z", "ip_history": [ "104.21.29.10", "172.67.171.60", "104.26.10.21" ], "ssl": { "tags": [ "dla" ], "fqdns": [ "www.deepinfo.com" ], "version": 3, "serial_number": "189849484378123535728845751731277906435", "fingerprint": { "sha256": "9ee43ae2be46ddb49482c3ad47bceb2907175707b94aa1afb5978c91dcfb362a", "sha1": "f8f7a3b09df16fc23e3d9b34e062929c05d0dbf1", "md5": "88e2268e11595eced4f4291927572e72" }, "validity": { "start_date": "2026-07-14T00:48:57Z", "end_date": "2026-10-12T01:48:52Z", "length": 7779595 }, "signature": { "is_self_signed": false, "is_valid": true, "value": "MEYCIQD+W/KyGw9ofgJOFy4/GMRG08/vlioVUr9ugAPEY6wK1AIhAIoo4AdZvUQgtg6ctg5l9ysj3WpEFPj68AFxG/+++Gky", "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=www.deepinfo.com", "subject": { "common_name": "www.deepinfo.com", "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": [ "2026-07-14T01:48:57Z" ], "subject_alt_name": { "dns_names": [ "www.deepinfo.com" ] }, "subject_key_id": "QtbFfIWsoUNLqOrTfWPHJn4pHH0=" }, "check_date": "2026-08-10T18:02:40Z" }, "ssl_last_change_date": "2026-08-10T18:02:52Z", "webdata": { "connection_status": "success", "html": { "source_code_hash": "2af0b9caeed738a92675819833dc9d1d99fc03ac1bf94dc69ae15210e7a8a8ed" }, "http": { "status_code_first": 301, "status_code_last": 200, "redirection_history": [ { "url": "http://www.deepinfo.com/", "status_code": 301 }, { "url": "https://www.deepinfo.com/", "status_code": 200 } ], "external_redirection": false, "final_url": "https://www.deepinfo.com/", "final_fqdn": "www.deepinfo.com", "final_domain": "deepinfo.com", "headers": { "others": [ { "name": "date", "value": "Mon, 22 Jun 2026 04:06:01 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=KNfCe7w56euwq6cXGZSz%2FK5et%2FvusCFASFuBeIiy4YDrIHS75WXOphOPVQ0TgYQgBUZFFW8Mddqffc71m649HUqN9w3%2Bz8R8X%2FOUM1DGrjDFhEBoY5qe53L%2BKbXf%2BVRNhoPf\"}]}" }, { "name": "nel", "value": "{\"report_to\":\"cf-nel\",\"success_fraction\":0.0,\"max_age\":604800}" }, { "name": "link", "value": "; rel=\"preconnect\"" }, { "name": "permissions_policy", "value": "camera=(), microphone=(), geolocation=(), payment=(), interest-cohort=()" }, { "name": "vary", "value": "accept-encoding" }, { "name": "cf_cache_status", "value": "DYNAMIC" }, { "name": "cf_ray", "value": "a0f860c0ad9a80ba-ORD" } ], "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": "default-src 'self'; script-src 'self' https://cdn.jsdelivr.net https://static.cloudflareinsights.com https://widget.intercom.io https://*.intercomcdn.com 'unsafe-inline'; style-src 'self' https://fonts.googleapis.com https://*.intercomcdn.com 'unsafe-inline'; font-src 'self' https://fonts.gstatic.com https://*.intercomcdn.com; img-src 'self' data: https:; connect-src 'self' https://static.cloudflareinsights.com https://*.intercom.io wss://*.intercom.io https://*.intercomcdn.com; frame-ancestors 'none'", "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": "max-age=31536000; includeSubDomains; preload", "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": [] } } } ``` ## Related Examples - [A Registrable Domain](/reference/discovery/domain-detail/examples/registrable-domain/) - [An Internationalized Domain Name](/reference/discovery/domain-detail/examples/idn/) - [A Name Without a Record](/reference/discovery/domain-detail/examples/no-record/)