CT log monitoring API

CT log monitoring service allows you to monitor the public CT logs for SSL/TLS certificates issued for the domains on your Secure Site Pro certificate orders, in near real time.

CT log monitoring is a cloud service so there is nothing to install or manage. After we've issued your Secure Site Pro certificate, and you've turned CT log monitoring for the order, you can start using the service immediately to monitor the domains on the certificate order.

To learn more, see CT log monitoring service.

Why use it?

  • Access all the features available in CertCentral without needing to log in to the platform.
  • Customize and automate virtually any workflow within the certificate management platform.
  • Create your own version of the platform with your organization's branding.
  • Seamlessly integrate with your existing tools.

Base URL

Use the base URL below when constructing CT log monitoring API requests.



All API requests are submitted via RESTful URLs using REST features, including header-based authentication and JSON/XML request types.

The data character set encoding for requests is UTF-8. A well-formed request uses port 443 and has the user-agent and content-length headers specified.


DigiCert CT log monitoring API uses these standard HTTP methods:

  • GET
  • PUT


Most requests require passing either JSON or XML formatted data. If an endpoint supports or requires a different format, it will be noted for that endpoint.

Supported content-type values include:

  • application/json
  • application/xml
  • image/jpeg
  • image/png


Responses consist of headers and a body. The body is formatted based on the content-type specified in the request.

See Glossary – Headers for information about HTTP header response codes.