This simple Python script uses the Umbrella Investigate API to perform a lookup in 1,000 bulk chunks at a time. This is more efficient than one at a time lookups.

Umbrella Investigate API Documentation

The input is a simple text file with one domain, hostname or IP address.

example.com
example.net
hostname.example.com
internetbadguys.com
67.215.92.210

• The Investigate API does not accept URLs.
• The script does not perform much input validation or check returned status code

Parse your date before sending it to the API to de-dupe the data sent to the API. The API has different tiers and the script will break when you hit the rate limit.