![](https://pbs.twimg.com/media/EK5s5j9WkAE-RcQ.jpg)
Ex: example.com:8080
*If no port is given, it will be given the default port of the scheme. HTTP is 80 and HTTPS is 443
Ex: company.com as an origin can load scripts and read data only from pages that have the same origin as http:// company.com or company.com/dir/
1- schemes: (http is different https)
2- ports
3- hosts: (company.com and about.company.com are considered different hosts and cannot read data from each other) according to SOP policy