Free utility

Referrer Policy Simulator

Model a Referer value for two HTTP(S) URLs and a selected policy.

Processing stays on this device. Your input is not uploaded, sent to an external service, or saved by Crow Tech.

Workbench

Inputs stay on this page. Use the explicit action to validate and produce a result.

Local URL-policy arithmetic only. No navigation or request is made, and embedding context is not modelled.