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ReActivity is a component of Scrutiny, built as a free standalone app.


  • Test your page's load speed and size
  • See a breakdown of each element with response time, load time and file size
  • Easily spot bottlenecks
  • See uncompressed and compressed size of files and so easily see the benefit of the server's gzip service
  • See total page weight
  • Have multiple tests open at the same time

What's New

Version 2.1:

  • Adds support for non-ASCII URLs
  • Implements ARC for better memory management
  • Adds 'Copy URL' in table view context menu
  • Adds 7-day trial and licence key (£1.50 / $2.50)


  • OS X 10.6 or later

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Current Version (2.x)


Downloads 975
Version Downloads 56
License Demo
Date 25 Jul 2014
Platform Intel 64 / OS X
Price $2.50
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