Here's how we parse the user agent:

Mozilla/5.0 (Linux; U; en-us; KFJWA Build/IMM76D) AppleWebKit/535.19 (KHTML, like Gecko) Silk/3.21 Safari/535.19 Silk-Accelerated=false


Silk 3 on Fire OS
Amazon Kindle Fire HD 8.9" WAN
Ads by Google

Here's some of the detailed information about what we can parse and tell you about that user agent.

Don't forget: our user agent parsing API gives you more info than what you see here - it's freemium and really easy to use too!

Simplified readout

Clear, human readable descriptions of the software & platform
  • Simple Software String
    Silk 3 on Fire OS
  • Simple Sub-description
  • Simple Operating Platform
    Amazon Kindle Fire HD 8.9" WAN

Software extras

Extra things this User agent announces.
  • Detected Addons
  • Software capabilities
    • Silk Acceleration disabled
  • Extra Info
  • Extra Info Table
    • System Build: IMM76D


Information about the web software

Operating System

Information about the Operating System
  • Operating System
    Fire OS
  • Operating System Name
  • Operating System Name Code
  • Operating System Flavour
  • Operating System Version
  • Operating System Version (full)
  • Operating System Frameworks


Miscellaneous Information

Browse all Silk user agents

Browse all Kindle Fire HD 8.9" WAN user agents

Report a problem with this user agent

Download our database of user agents

We hope this user agent parse information was helpful. If you'd like to integrate this kind of detection into your own systems; we have a powerful and easy to use API. You'll be able to connect it to your contact forms, customer signups, bug reports, error logs and more.

Ads by Google