# Issuer Common Name Matches records whose ssl.issuer.common_name equals YR2. Source: https://docs.deepinfo.com/reference/discovery/domain-search/examples/ssl-issuer-common-name/ Last updated: 2026-09-26 --- `POST https://api.deepinfo.com/v1/discovery/domain-search?page_size=25` Example 15 of 29 in **Filters › SSL** · [Domain Search Examples](/reference/discovery/domain-search/examples/) · endpoint: [Domain Search](/reference/discovery/domain-search/) Tags: `field` `ssl.issuer.common_name` · `operator` `eq` Matches records whose `ssl.issuer.common_name` equals `YR2`. The common name of the issuing CA certificate, here one of the Let's Encrypt intermediates. In the response, look at `results[].ssl.issuer.common_name`. ## Request | Parameter | In | Value | |---|---|---| | `page_size` | query | `25` | | `filters.must[0].name` | body | `ssl.issuer.common_name` | | `filters.must[0].type` | body | `eq` | | `filters.must[0].value` | body | `YR2` | ```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.issuer.common_name", "type": "eq", "value": "YR2" } ] } }' ``` ## Response ### 200 · OK > Shortened for this page: results: 3 of 25 shown; results[].ip_history: first 10 items; results[].ssl.fqdns: first 10 items; results[].ssl.extensions.subject_alt_name.dns_names: 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: 99905` · `x-ratelimit-remaining-minute: 9999` · `x-ratelimit-remaining-second: 999` · `deepinfo-request-id: 5f0c6a8e-1b2d-4c3e-9f4a-7b8c9d0e1f2a` ```json { "page": 1, "page_size": 25, "result_count": 88413853, "results": [ { "punycode": "cpcalendars.erband.org", "unicode": "cpcalendars.erband.org", "is_idn": false, "subdomain": { "punycode": "cpcalendars", "unicode": "cpcalendars", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 11 }, "subdomain_last": { "punycode": "cpcalendars", "unicode": "cpcalendars", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 11 }, "subdomain_root": { "punycode": "cpcalendars", "unicode": "cpcalendars", "is_idn": false, "contains_letter": true, "contains_number": false, "contains_hyphen": false, "length": 11 }, "name": { "punycode": "cpcalendars.erband", "unicode": 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"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": "Tue, 17 Mar 2026 06:50:19 GMT", "permission_policy": null, "referrer_policy": null, "server": "nginx", "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": [] } } } ] } ``` ## Related Examples - [Issuer Distinguished Name](/reference/discovery/domain-search/examples/ssl-issuer-dn/) - [Issuer Country](/reference/discovery/domain-search/examples/ssl-issuer-country/) - [Issuer State](/reference/discovery/domain-search/examples/ssl-issuer-state/) - [Certificates With a Valid Signature](/reference/discovery/domain-search/examples/ssl-signature-is-valid/) - [Issuer Locality](/reference/discovery/domain-search/examples/ssl-issuer-locality/) - [Self-Signed Certificates](/reference/discovery/domain-search/examples/ssl-signature-is-self-signed/)