When a link is received with no description on where the page is located or accessed, the URL will often times have the path to the page visible. For example if the page is https://sisacademy.org/page/giving/giving-tuesday
This would be able to be found by navigating to:
  1. School Website > Website Management > Websites
  2. Click the 3-dot button for your main site > edit website
  3. Expand the Giving L1 Menu
  4. You will see an L2 pade titled Giving Tuesday

You can click the Wrench icon for the page then select View Page to see the Full page URL which should match what you are seeing above but the .org changes to myschoolapp.com as you are now logged into the HTTPS app portion.