Customers using FOSSA on-premises or behind a firewall might need to whitelist FOSSA's public IP addresses. This document describes the public IP addresses for each service required by FOSSA.

vulns.fossa.com and app.fossa.com

52.89.229.204
52.35.199.176
52.12.44.255
44.238.207.42
44.238.247.59
44.226.239.166

The following IP addresses may be used in the future:

52.12.103.230
52.25.40.179
52.36.130.46
44.241.14.89
44.238.212.244
44.231.226.116

AWS S3

The IP space for S3 that is used will be based in us-west-2. As of this writing, the IP space is 52.94.76.0/22

You can verify that this is is still valid by going to https://ip-ranges.amazonaws.com/ip-ranges.json , and searching for the element within the prefixes array with the region "us-west-2"