Site stability under high load can be a high visibility issue for CWP sites, and can often be improved with some simple changes to the project code. While the SilverStripe Open Source project has documented some performance optimisation approaches, this guide is specifically designed to help with common issues on CWP.
For general information about PHP version support, consult the PHP Version Compatibility section.
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Performance Testing
How and what to test on your CWP instance
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Caching
Optimising site performance through caching
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HTTP Caching
Improve performance with HTTP caching layers built into CWP
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Deferring Work
How to avoid doing it all in the request.
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Frontend Best Practices
Lose weight in the browser with this one weird trick!
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Working with APIs
Keep your site fast when working with APIs
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Dealing with 404s
For when things are missing.