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Official Google PageSpeed optimization for Microsoft IIS

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Automatic web performance optimization for ASP.NET, MVC, php or any other technology running on Microsoft IIS. Powered by the official PageSpeed SDK from Google. Automatically and hassle-free compliance with Google PageSpeed Insights recommendations. Speed up your web site and boost web performance!

Download the latest stable release of IISpeed. Based on PageSpeed 1.9.32.14-stable.

Download 2.0.3 Stable Server License ($99)

Solving high HTML time to first byte latencies

Next to pagespeed optimization, we have tried and proven solutions for high time to first byte latencies for html pages caused by slow backends. Is your site serving slow html pages? Get in touch to discuss how we can help you solve your problem.

Getting up and running with IISpeed

Install Configure Tune IIS Diagnostics F.A.Q. Known Issues Support group

Free update for all registered users
IISpeed 2.0.3 will not check the license for expiration. It is possible to run IISpeed 2.0.3 with all licenses. The next version will enforce license expiry.

Free update for all registered users
IISpeed 2.0.1 will not check the license for expiration. It is possible to run IISpeed 2.0.3 with all licenses.

History
2016-03-31: IISpeed 2.0.3 Stability fixes.
2016-03-31: IISpeed 2.0.2 Upgrade from PageSpeed 1.9.32.4 to 1.9.32.14/stable. Security and stability fixes.
2015-11-17: IISpeed 2.0.1, Security Update
2015-08-06: IISpeed 2.0

Free without a license
When unregistered, IISpeed will append a small 'Powered by IISpeed' banner to your website.
IISpeed can be used for free as long as the banners are visible. Buying a license will remove the banner. Microsoft IIS logo


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Some content on this website represents a modified version of the official Google PageSpeed documentation