Publisher allows you to embed another site in the page. This can be very useful if you want users to be able to see content from another site, like a report, without leaving their homepage. To do this:
First, you need to go to the page Designer
On the left side, you will see the Embedded Site module listed in the Modules section
Click and drag the module onto the page. A window will popup
Here, you can paste the address of the site you wish to embed in this box. This will validate that it is a website address (e.g. https://www.yoursiteurl.com)
The security of the site must match the security of your portal. If your portal is SSL enabled, your site must be HTTPS. If your site is not SSL enabled, your site must be HTTP. This is a requirement of modern web browsers.
Once you have the address, you can modify any style properties by clicking "Choosestyle". Here, you can set borders, background colors, etc
When done, drag the handles around the dashed box to re-size your embedded site to your desired size.
When done, click Save. The embedded site will reload every time the homepage refreshes