check

Check Certificates

Get SSL/TLS certificate information. certificates is the raw cached certificate-transparency payload (shape follows crt.sh), or null.

get/check/certificates

Query parameters

querystring

IP address or domain to check

Response

Certificate data response: {"certificates": <raw crt.sh payload> | null}

certificatesobject nullable

Changes

Changed in 2 of the 5 revisions of this API.1431

Aug 31, 20269d9ef31d83e51421See the full diff
- ▲
  the response property certificates became nullable for the status 200
  response-property-became-nullable
- ▲
  the response property message became nullable for the status 400
  response-property-became-nullable
- ▲
  the response property message became nullable for the status 401
  response-property-became-nullable
- ▲
  the response property message became nullable for the status 429
  response-property-became-nullable
- ▲
  the response property certificates became optional for the status 200
  response-property-became-optional
- ▲
  the response property message became optional for the status 400
  response-property-became-optional
- ▲
  the response property message became optional for the status 401
  response-property-became-optional
- ▲
  the response property message became optional for the status 429
  response-property-became-optional
- ▲
  removed the required property certificates/fingerprint from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property certificates/issuer from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property certificates/serial_number from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property certificates/subject from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property certificates/valid_from from the response with the 200 status
  response-required-property-removed
- ▲
  removed the required property certificates/valid_to from the response with the 200 status
  response-required-property-removed
- ●
  deleted the path request parameter enrichment
  request-parameter-removed
- ●
  deleted the path request parameter query
  request-parameter-removed
- ○
  added the new optional query request parameter query
  new-optional-request-parameter
This revision also has 17 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog
Aug 30, 2026aa5294fdc8d81See the full diff
- ●
  deleted the path request parameter track_reports
  request-parameter-removed

Full history