What is included in a SharePoint backup?

• Communication Site
• Team Site 
  • Documents 
  • Files
  • Text based
  • Image
  • Video
• Notebook
  •  Section 
    • Page Note
      • Draw note
• Pages
  • Wiki Page
  • Web Part Page 
  • Site Page 
• Site Content 
  • Content (Contains the whole file on site, include doc, note, page)
  • Sub Site 
  • Team Site (type – similar with main site) 
  • Blog
  • Project Site (type – similar with main site) 
• List
• SharePoint File permission

SharePoint Page Libraries are NOT backed up.