# Certificates With a Valid Signature Matches records whose ssl.signature.is_valid equals true. Source: https://docs.deepinfo.com/reference/discovery/domain-search/examples/ssl-signature-is-valid/ Last updated: 2026-09-26 --- `POST https://api.deepinfo.com/v1/discovery/domain-search?page_size=25` Example 12 of 29 in **Filters › SSL** · [Domain Search Examples](/reference/discovery/domain-search/examples/) · endpoint: [Domain Search](/reference/discovery/domain-search/) Tags: `field` `ssl.signature.is_valid` · `operator` `eq` Matches records whose `ssl.signature.is_valid` equals `true`. Combine it with `must_not` to find invalid signatures instead (see the combination examples). In the response, look at `results[].ssl.signature.is_valid`. ## Request | Parameter | In | Value | |---|---|---| | `page_size` | query | `25` | | `filters.must[0].name` | body | `ssl.signature.is_valid` | | `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": "ssl.signature.is_valid", "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: 99908` · 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"name_servers": [] }, "mx": { "update_date": "2026-09-05T18:49:20Z", "mail_servers": [] }, "soa": { "update_date": "2026-09-05T18:49:20Z", "mnames": [], "rnames": [], "rname_emails": [] }, "txt": { "update_date": "2026-09-05T18:49:20Z", "values": [] }, "cname": { "update_date": "2026-09-05T18:49:20Z", "values": [ "shops.myshopify.com." ] }, "others": [] }, "dns_last_change_date": "2026-09-05T20:24:57Z", "ip_history": [ "23.227.38.74" ], "ssl": { "tags": [ "dla" ], "fqdns": [ "www.decantal.shop" ], "version": 3, "serial_number": "463540936913478355325418264150368970836118", "fingerprint": { "sha256": "150d975ec90fa43f21b412be5d0a764fe7da608a34e5e0ef7b18d0a6abf31114", "sha1": "6cf5499840b3f72403d93621d515ac035430fd01", "md5": "50e9e2623359d0b1de4c0d8752a78297" }, "validity": { "start_date": "2026-03-15T05:25:34Z", "end_date": "2026-06-13T05:25:33Z", "length": 7775999 }, "signature": { "is_self_signed": false, "is_valid": true, "value": "MGQCMEPFsn4kZE/zJoqqIa/yAvJzgxl0wJy2O+t1NZI2nmmvSNLUb/LfFrlZJbMgOIwH3wIwftFms/q86CfKGysqQKErMPWdeljXCATwOCWJCI2A3wbA10HpjDF6k+k2ur3tQX7a", "algorithm": { "oid": "1.2.840.10045.4.3.3", "name": "sha384" } }, "issuer_dn": "CN=E7,O=Let's Encrypt,C=US", "issuer": { "common_name": "E7", "country": "US", "state": null, "locality": null, "organization": "Let's Encrypt", "organizational_unit": null }, "subject_dn": "CN=www.decantal.shop", "subject": { "common_name": "www.decantal.shop", "country": null, "state": null, "locality": null, "organization": null, "organizational_unit": null }, "extensions": { "authority_key_id": "rkie3IcdRKBv2qLlYHQEeMKcAIA=", "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": [ "2026-03-15T06:24:04Z" ], "subject_alt_name": { "dns_names": [ "www.decantal.shop" ] }, "subject_key_id": "IgiCd26aspW3PczfxEz9Nm9PQZU=" }, "check_date": "2026-04-02T18:35:45Z" }, "ssl_last_change_date": "2026-04-02T18:36:14Z", "webdata": { "connection_status": "success", "html": { "source_code_hash": "914fed0d4c31cb9b3cbc4cab33662a01c537f18eb88a3991fe35c0ef6a67a85b" }, "http": { "status_code_first": 301, "status_code_last": 200, "redirection_history": [ { "url": "http://www.decantal.shop/", "status_code": 301 }, { "url": "https://www.decantal.shop/", "status_code": 301 }, { "url": "https://decantal.shop/", "status_code": 200 } ], "external_redirection": false, "final_url": "https://decantal.shop/", "final_fqdn": "decantal.shop", "final_domain": "decantal.shop", "headers": { "others": [ { "name": "date", "value": "Sun, 21 Jun 2026 15:48:21 GMT" }, { "name": "transfer_encoding", "value": "chunked" }, { "name": "connection", "value": "keep-alive" }, { "name": "x_dc", "value": "gcp-us-central1,gcp-us-central1,gcp-us-central1" }, { "name": "x_request_id", "value": "7778833d-5f05-473e-959a-99f46001eb8a-1782056901" }, { "name": "report_to", "value": "{\"group\":\"cf-nel\",\"max_age\":604800,\"endpoints\":[{\"url\":\"https://a.nel.cloudflare.com/report/v4?s=wMzojjfXCadLitnxl17WNMhb2wpo7xVawJPpQIy938mr7vqrUCHKG5fnWbbKeS5UJr95WOwPyrWaOX4fl2IR8RDuYjCdm6zmemUpbPlS5WR9nXwzuX%2BBK53co9LiBys%3D\"}]}" }, { "name": "link", "value": "; rel=\"preconnect\", ; rel=\"preconnect\"; crossorigin, ; as=\"style\"; rel=\"preload\", ; as=\"image\"; rel=\"preload\"; imagesrcset=\"//decantal.shop/cdn/shop/files/image1.png?v=1727205019&width=70 70w, //decantal.shop/cdn/shop/files/image1.png?v=1727205019&width=105 105w, //decantal.shop/cdn/shop/files/image1.png?v=1727205019&width=140 140w\"; imagesizes=\"(max-width: 140px) 50vw, 70px\"" }, { "name": "cf_cache_status", "value": "DYNAMIC" }, { "name": "nel", "value": "{\"report_to\":\"cf-nel\",\"success_fraction\":0.01,\"max_age\":604800}" }, { "name": "shopify_complexity_score", "value": "22" } ], "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": "block-all-mixed-content; frame-ancestors 'none'; 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": "cloudflare", "set_cookie": "localization=; path=/; expires=Mon, 21 Jun 2027 15:48:21 GMT, _shopify_y=; domain=decantal.shop; path=/; expires=Mon, 21 Jun 2027 21:48:21 GMT; SameSite=Lax, _shopify_s=; domain=decantal.shop; path=/; expires=Sun, 21 Jun 2026 16:18:21 GMT; SameSite=Lax, _shopify_essential=; Max-Age=31536000; Path=/; HttpOnly; Secure; Priority=High; SameSite=Lax, _shopify_analytics=; Max-Age=31536000; Path=/; HttpOnly; Secure; Priority=High; SameSite=Lax, _shopify_marketing=; Max-Age=31536000; Path=/; HttpOnly; Secure; Priority=High; SameSite=Lax", "strict_transport_security": "max-age=7889238", "x_content_type_options": "nosniff", "x_download_options": "noopen", "x_frame_options": "DENY", "x_permitted_cross_domain_policies": "none", "x_powered_by": null, "x_xss_protection": "1; mode=block" }, "cookies": [ { "name": "_shopify_s", "value": "" }, { "name": "_shopify_y", "value": "" }, { "name": "_shopify_analytics", "value": "" }, { "name": "_shopify_essential", "value": "" }, { "name": "_shopify_marketing", "value": "" }, { "name": "localization", "value": "" } ] } } } ] } ``` ## Related Examples - [Self-Signed or Invalid Certificates](/reference/discovery/domain-search/examples/self-signed-or-invalid-certificates/) - [Self-Signed Certificates](/reference/discovery/domain-search/examples/ssl-signature-is-self-signed/) - [Issuer Distinguished Name](/reference/discovery/domain-search/examples/ssl-issuer-dn/) - [Issuer Common Name](/reference/discovery/domain-search/examples/ssl-issuer-common-name/) - [Issuer Country](/reference/discovery/domain-search/examples/ssl-issuer-country/) - [Certificate by MD5 Fingerprint](/reference/discovery/domain-search/examples/ssl-fingerprint-md5/)