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Azure functions that use Puppeteer Chromium to test websites to see if they are a Progressive Web App and if so return information about that PWA. These functions power PWABuilder, but can also be cloned and run independently.

Details about what info is pulled from each PWA. All of this info is gathered using Puppeteer and its APIs.

• A manifest with at least the following:

  • Name *
  • Short name *
  • Start url *
  • Icons **
  • Display mode *

• A service worker that has cache handlers

• Valid https cert with no mixed content

If a site has these things then it is a PWA.

• Screenshots
• Categories
• Iarc rating
• Related applications
• Prefer related
• Background color
• Theme color
• Description
• Orientation
• At least one maskable icon
• At least one monochrome icon\
• At least one 512x512 or larger square icon] Offline support

If a PWA has these then it is a store ready PWA, such as for the Microsoft or Google Play store.

https://docs.microsoft.com/en-us/azure/azure-functions/functions-reference https://docs.microsoft.com/en-us/azure/azure-functions/functions-reference-node