A public route planner
You can publish a project as a public routeplanner anyone can consult to check his/her own routes in a scenario you built.
Generated routes
You can share generated routes in a scenario by clicking the share button on the right and click the New button to generate a new link. This link can be sent to anyone and is public, it will always show whatever routes are visible in your scenario.
Check this quick how to on how to share a scenario.