# CNAME Pointing to GitHub Pages Matches records whose dns.cname.values matches the pattern *.github.io. (* stands for any characters). Source: https://docs.deepinfo.com/reference/discovery/domain-search/examples/dns-cname-values/ Last updated: 2026-09-26 --- `POST https://api.deepinfo.com/v1/discovery/domain-search?page_size=25` Example 19 of 25 in **Filters › DNS** · [Domain Search Examples](/reference/discovery/domain-search/examples/) · endpoint: [Domain Search](/reference/discovery/domain-search/) Tags: `field` `dns.cname.values` · `operator` `wildcard` Matches records whose `dns.cname.values` matches the pattern `*.github.io.` (`*` stands for any characters). Hosts whose CNAME points to a GitHub Pages site (`.github.io`). CNAME targets are stored as fully qualified names, with the final dot, so the pattern ends with `.`. In the response, look at `results[].dns.cname.values`. ## Request | Parameter | In | Value | |---|---|---| | `page_size` | query | `25` | | `filters.must[0].name` | body | `dns.cname.values` | | `filters.must[0].type` | body | `wildcard` | | `filters.must[0].value` | body | `*.github.io.` | ```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": "dns.cname.values", "type": "wildcard", "value": "*.github.io." } ] } }' ``` ## 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: 99636` · `x-ratelimit-remaining-minute: 9983` · `x-ratelimit-remaining-second: 999` · `deepinfo-request-id: 5f0c6a8e-1b2d-4c3e-9f4a-7b8c9d0e1f2a` ```json { "page": 1, "page_size": 25, "result_count": 948163, "results": [ { "punycode": "armandoassuncao.com", "unicode": "armandoassuncao.com", "is_idn": false, "subdomain": null, "subdomain_last": null, "subdomain_root": null, "name": { "punycode": "armandoassuncao", "unicode": "armandoassuncao", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 15, "lang": "en", "keywords": [ "armando", "assuncao" ], "keyword_count": 2, "latinized": [], "contains_confusable": false }, "domain": { "punycode": "armandoassuncao.com", "unicode": "armandoassuncao.com", "is_idn": false, "name": { "punycode": "armandoassuncao", "unicode": "armandoassuncao", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 15, "lang": "en", "keywords": [ "armando", "assuncao" ], "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": "2016-07-22T21:10:33Z", "update_date": "2025-07-03T04:17:30Z", "expiry_date": "2030-07-22T21:10:33Z", "registrar": "tucows domains inc.", "registrant": { "name": null, "organization": null, "street": null, "city": null, "state": null, "postal_code": null, "country": null, "phone": null, "email": null }, "name_servers": [ "ns1.dominios.uol.com.br", "ns2.dominios.uol.com.br", "ns3.dominios.uol.com.br" ], "domain_status": [ "ok" ], "whois_server": "whois.tucows.com", "check_date": "2026-06-25T06:26:25Z" }, "whois_normalized": { "registrant": null }, "whois_last_check_date": "2026-06-25T06:26:25Z", "whois_create_date_historical": [ "2016-07-22T21:10:33Z" ], "whois_last_change_date": "2026-01-04T03:17:53Z", "whois_registrant_email_historical": [ "https://tieredaccess.com/contact/4c577094-90b0-4415-b6eb-c377e2132202", "https://tieredaccess.com/contact/b1fd2713-4a60-4471-9841-a2397d14ef70", "https://tieredaccess.com/contact/a98fe0c5-0bfa-4575-b6c2-7d6988461a6b", "https://tieredaccess.com/contact/62711584-5dee-4074-8902-c3001bee6c59" ], "whois_privacy_enabled": null, "dns": { "a": { "update_date": "2026-09-04T13:22:49Z", "ip_addresses": [ "185.199.108.153", "185.199.109.153", "185.199.110.153", "185.199.111.153" ] } }, "dns_last_change_date": "2026-06-09T19:11:56Z", "ip_history": [ "185.199.108.153", "185.199.109.153", "185.199.110.153", "185.199.111.153" ], "ssl": { "validity": { "start_date": "2026-08-13T01:07:09Z", "end_date": "2026-11-11T01:07:08Z" }, "serial_number": "512331368133100298565543521289098700573309", "check_date": "2026-09-09T19:10:40Z" }, "ssl_last_change_date": "2026-09-09T19:10:54Z" }, "type": 1, "subdomain_level_count": 0, "dns": { "a": { "update_date": "2026-09-04T13:22:49Z", "ip_addresses": [ "185.199.108.153", "185.199.109.153", "185.199.110.153", "185.199.111.153" ] }, "aaaa": { "update_date": "2026-09-04T13:22:49Z", "ip_addresses": [ "2606:50c0:8000::153", "2606:50c0:8001::153", "2606:50c0:8002::153", "2606:50c0:8003::153" ] }, "ns": { "update_date": "2026-09-04T13:22:49Z", "name_servers": [ "ns1.dominios.uol.com.br", "ns2.dominios.uol.com.br", "ns3.dominios.uol.com.br" ] }, "mx": { "update_date": "2026-09-04T13:22:49Z", "mail_servers": [ "mx.uhserver.com" ] }, "soa": { "update_date": "2026-09-04T13:22:49Z", "mnames": [], "rnames": [], "rname_emails": [] }, "txt": { "update_date": "2026-09-04T13:22:49Z", "values": [ "\"v=spf1 include:spf.whservidor.com ?all\"" ] }, "cname": { "update_date": "2026-09-04T13:22:49Z", "values": [ "armandoassuncao.github.io." ] }, "others": [] }, "dns_last_change_date": "2026-06-09T19:11:54Z", "ip_history": [ "185.199.108.153", "185.199.109.153", "185.199.110.153", "185.199.111.153" ], "ssl": { "tags": [ "dla" ], "fqdns": [ "armandoassuncao.com", "www.armandoassuncao.com" ], "version": 3, "serial_number": "512331368133100298565543521289098700573309", "fingerprint": { "sha256": "db8fe1d49f5a4d1749e63f5c2402176ee77dcc9840ddbbe53da859cf928e53b9", "sha1": "49f11d79d52e2a8f38bce8ea5be97a99466da266", "md5": "d3ba30634f1f855c02d6799586210aaf" }, "validity": { "start_date": "2026-08-13T01:07:09Z", "end_date": "2026-11-11T01:07:08Z", "length": 7775999 }, "signature": { "is_self_signed": false, "is_valid": true, "value": "mDP6mAe5m0bU996ezVH4kfDN5IXzvyt+Wqm4I8dtIQT+NSiCy7xcgOYSRusnvQ8ocs243VcX9lKYTRQibuNIH4Rq/cs3NOj0zFtcQLjCSojkrnXz7O9InqzneF1TRyy208COdURzqu7roUK36nqU3wwt/Sbv7BsQkABZYbnx3Xjw1HhGVKGCmAf+XoVlxGmtxpenT4HjR4tuyGsecpKXLf7Ju5JEO+rupC5WrM9ni6gTxOozReCk17fn/VBHkL749xw9AvckY6DgPClHZ2ZRn2ncfB6bMGmBX9MiDifLdfROL5ain2fAvapwBFU3aCYe5WlivbH+Jb0TvW97rTDIRA==", "algorithm": { "oid": "1.2.840.113549.1.1.11", "name": "sha256" } }, "issuer_dn": "CN=YR2,O=Let's Encrypt,C=US", "issuer": { "common_name": "YR2", "country": "US", "state": null, "locality": null, "organization": "Let's Encrypt", "organizational_unit": null }, "subject_dn": "CN=armandoassuncao.com", "subject": { "common_name": "armandoassuncao.com", "country": null, "state": null, "locality": null, "organization": null, "organizational_unit": null }, "extensions": { "authority_key_id": "QBUtJnntMiCe35pyHdYyH4EMgQw=", "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": true, "key_cert_sign": false, "crl_sign": false }, "signed_certificate_timestamps": [ "2026-08-13T02:05:40Z" ], "subject_alt_name": { "dns_names": [ "armandoassuncao.com", "www.armandoassuncao.com" ] }, "subject_key_id": "WMmyqmjmpUjM2CvoQrK/f75FZmg=" }, "check_date": "2026-09-09T19:10:40Z" }, "ssl_last_change_date": "2026-09-09T19:10:54Z", "webdata": { "connection_status": "success", "html": { "source_code_hash": "c7e88205b389bcf5d50c1f831f9adaf10a63f80675c316c15022fdc7cd4ee282" }, "http": { "status_code_first": 200, "status_code_last": 200, "redirection_history": [ { "url": "http://armandoassuncao.com/", "status_code": 200 } ], "external_redirection": null, "final_url": "http://armandoassuncao.com/", "final_fqdn": "armandoassuncao.com", "final_domain": "armandoassuncao.com", "headers": { "others": [ { "name": "connection", "value": "keep-alive" }, { "name": "content_length", "value": "2799" }, { "name": "etag", "value": "W/\"5942bfdf-302b\"" }, { "name": "expires", "value": "Thu, 23 Apr 2026 04:58:42 GMT" }, { "name": "x_proxy_cache", "value": "MISS" }, { "name": "x_github_request_id", "value": "51AA:7F8E4:275E627:2BA22FC:69E9A4A9" }, { "name": "accept_ranges", "value": "bytes" }, { "name": "age", "value": "0" }, { "name": "date", "value": "Thu, 23 Apr 2026 04:48:42 GMT" }, { "name": "via", "value": "1.1 varnish" } ], "access_control_allow_headers": null, "access_control_allow_methods": null, "access_control_allow_origin": "*", "cache_control": "max-age=600", "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": "Thu, 15 Jun 2017 17:11:59 GMT", "permission_policy": null, "referrer_policy": null, "server": "GitHub.com", "set_cookie": null, "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": [] } } }, { "punycode": "yan-lab.top", "unicode": "yan-lab.top", "is_idn": false, "subdomain": null, "subdomain_last": null, "subdomain_root": null, "name": { "punycode": "yan-lab", "unicode": "yan-lab", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": true, "length": 7, "lang": "en", "keywords": [ "yan", "lab" ], "keyword_count": 2, "latinized": [], "contains_confusable": false }, "domain": { "punycode": "yan-lab.top", "unicode": "yan-lab.top", "is_idn": false, "name": { "punycode": "yan-lab", "unicode": "yan-lab", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": true, "length": 7, "lang": "en", "keywords": [ "yan", "lab" ], "keyword_count": 2 }, "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": "2025-12-18T09:08:26Z", "update_date": "2025-12-18T09:14:43Z", "expiry_date": "2026-12-18T09:08:26Z", "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": "jiang su", "postal_code": "redacted for privacy", "country": "cn", "phone": "redacted for privacy", "email": "REDACTED FOR PRIVACY" }, "name_servers": [ "dns25.hichina.com", "dns26.hichina.com" ], "domain_status": [ "ok" ], "whois_server": "whois.aliyun.com/", "check_date": "2026-03-20T12:26:56Z" }, "whois_normalized": { "registrant": { "organization": "redactedforprivacy", "phone": null, "email": null, "email_fqdn_apex": null, "email_domain_apex": null } }, "whois_last_check_date": "2026-03-20T12:26:56Z", "whois_create_date_historical": [ "2025-12-18T09:08:26Z" ], "whois_last_change_date": "2025-12-19T08:54:51Z", "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": "2026-09-09T17:40:13Z", "ip_addresses": [ "185.199.108.153", "185.199.109.153", "185.199.110.153", "185.199.111.153" ] } }, "dns_last_change_date": "2026-09-09T17:40:19Z", "ip_history": [ "185.199.108.153", "185.199.109.153", "185.199.110.153", "185.199.111.153" ], "ssl": { "validity": { "start_date": "2026-08-02T23:38:02Z", "end_date": "2026-10-31T23:38:01Z" }, "serial_number": "489491210910490937502072898936331786999806", "check_date": "2026-09-09T17:29:04Z" }, "ssl_last_change_date": "2026-09-02T20:30:54Z" }, "type": 1, "subdomain_level_count": 0, "dns": { "a": { "update_date": "2026-09-09T17:40:13Z", "ip_addresses": [ "185.199.108.153", "185.199.109.153", "185.199.110.153", "185.199.111.153" ] }, "aaaa": { "update_date": "2026-09-09T17:40:13Z", "ip_addresses": [ "2606:50c0:8000::153", "2606:50c0:8001::153", "2606:50c0:8002::153", "2606:50c0:8003::153" ] }, "ns": { "update_date": "2026-09-09T17:40:13Z", "name_servers": [ "dns25.hichina.com", "dns26.hichina.com" ] }, "mx": { "update_date": "2026-09-09T17:40:13Z", "mail_servers": [] }, "soa": { "update_date": "2026-09-09T17:40:13Z", "mnames": [ "dns25.hichina.com" ], "rnames": [ "hostmaster.hichina.com" ], "rname_emails": [ "user@hichina.com" ] }, "txt": { "update_date": "2026-09-09T17:40:13Z", "values": [] }, "cname": { "update_date": "2026-09-09T17:40:13Z", "values": [ "zsgk2003.github.io." ] }, "others": [] }, "dns_last_change_date": "2026-09-09T17:40:18Z", "ip_history": [ "185.199.108.153", "185.199.109.153", "185.199.110.153", "185.199.111.153" ], "ssl": { "tags": [ "dla" ], "fqdns": [ "github.com", "github.io", "githubusercontent.com" ], "version": 3, "serial_number": "489491210910490937502072898936331786999806", "fingerprint": { "sha256": "71f1077db377fd7b8d68380da66fa68238a303b2911bcb770b3b2a426693cf84", "sha1": "74c636182eb8a36dce932cd47aac154f693dba61", "md5": 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}, "extensions": { "authority_key_id": "Hy81vkYUgs1Asa55LFV4+vfUaPs=", "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": true, "key_cert_sign": false, "crl_sign": false }, "signed_certificate_timestamps": [ "2026-08-03T00:36:32Z", "2026-08-03T00:36:33Z" ], "subject_alt_name": { "dns_names": [ "*.github.com", "*.github.io", "*.githubusercontent.com", "github.com", "github.io", "githubusercontent.com" ] }, "subject_key_id": "dkIMxI2gcKcx2J9yXK5CRDulWy4=" }, "check_date": "2026-09-09T17:29:04Z" }, "ssl_last_change_date": "2026-09-02T20:30:53Z", "webdata": { "connection_status": "success", "html": { "source_code_hash": "3e123999209c971c6107698abd642c4e90d9e0b53851295e567f8534c2ac9b63" }, "http": { "status_code_first": 200, "status_code_last": 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E-mail Domain](/reference/discovery/domain-search/examples/dns-soa-rname-emails/) - [Past Registrant E-mails at a Privacy Service](/reference/discovery/domain-search/examples/domain-whois-registrant-email-historical/) - [Normalized Registrant Organization](/reference/discovery/domain-search/examples/domain-whois-normalized-registrant-organization/) - [Name Servers at Cloudflare](/reference/discovery/domain-search/examples/domain-whois-name-servers/) - [Registrant E-mail at a Privacy Service](/reference/discovery/domain-search/examples/domain-whois-registrant-email/) - [Other Header Value](/reference/discovery/domain-search/examples/webdata-http-headers-others-value/)