Making requests | Documentation | SSL Certificate Chain API | WhoisXML API

Making requests

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Input parameters


Required. Get your personal API KEY on My products page.


Required. The target domain to analyze.


Optional. 1 allows you to get all domain certificates sorted from the end-user to the root one.

Acceptable values: 0 | 1

Default: 0


Optional. 1 results in getting fresh data.

Acceptable values: 0 | 1

Default: 0


Optional. Response output format.

Acceptable values: JSON | XML

Default: JSON

Free access

After Sign Up you automatically get a free subscription plan limited to 100 credits.

Usage limits and requests throttling

The maximum number of requests per second is 30. In case that the limit is breached, your subsequent requests will be rejected until the next second.

This API is also available with a dedicated load balancer and premium endpoint to enable faster querying as part of our Premium API Services and Enterprise API Packages.