Once your order was handed to the courier you'll receive an email with your tracking information automatically. You can also find the tracking information in your order summary you received right after purchase.
FedEx packages can always be tracked here.
Packages shipped with Standard Shipping can be tracked on the website of your local postal service, for example:
Australia: https://auspost.com.au/mypost/track/#/search
Canada: https://www.canadapost.ca/trackweb/en#/home
UK: https://www.royalmail.com/
New Zealand: https://www.nzpost.co.nz/