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ASP.NET Site Performance Secrets

ASP.NET Site Performance Secrets

By : Mattijs Perdeck
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ASP.NET Site Performance Secrets

ASP.NET Site Performance Secrets

5 (6)
By: Mattijs Perdeck

Overview of this book

Do you think that only experts with a deep understanding of the inner workings of ASP.NET, SQL Server, and IIS can improve a website's performance? Think again – because this book tosses that notion out of the window. It will help you resolve every web developer's nightmare – a slow website – with angry managers looking over your shoulder, raging calls from advertisers and clients – the lot. You don't have the time or energy to gain a thorough and complete understanding of ASP.NET performance optimization – You just need your site to run faster! This book will show you how.This hands-on book shows how to dramatically improve the performance of your ASP.NET-based website straight away, without forcing you through a lot of theoretical learning. It teaches you practical, step-by-step techniques that you can use right away to make your site faster with just the right amount of theory you need to make sense of it all.Start reading today and you could have a faster website tomorrow.Unlike other performance-related books, here you'll first learn how to pinpoint the bottlenecks that hold back your site's performance, so you can initially focus your time and energy on those areas of your site where you can quickly make the biggest difference. It then shows you how to fix the bottlenecks you found with lots of working code samples and practical advice, and just the right amount of theoretical detail.The first chapter details techniques for diagnosing performance issues using Waterfall charts. Subsequent chapters then each focus on one individual aspect of your website, providing you with numerous real-life scenarios and performance-enhancing techniques for each of them. In the last chapter, you learn how to effectively load-test your environment in order to measure the change in performance of your site without having to update your production environment – whether it is a new release or simply a small change in the database.
Table of Contents (19 chapters)
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ASP.NET Site Performance Secrets
Credits
About the Author
About the Reviewers
Preface

Improving CSS Loading


Just as JavaScript files, CSS files also block rendering of the page. This way, the visitor isn't confronted by the page in its unstyled form.

You can see this behavior by running the website in folder CssBlocksRendering in the downloaded code bundle. This test has a single page that loads a single CSS file. Generation of the CSS file on the server is delayed by five seconds, using the HTTP Module DelayModule in its App_Code folder. When you open the page, you'll find that the window stays blank for five seconds.

CSS files also block the execution of JavaScript files. This is because the JavaScript may refer to definitions in the CSS files.

One way to reduce this issue is to load your CSS files as quickly as possible. You can achieve that in the following ways:

  • Using techniques used with images such as caching, parallel downloads, and using a CDN. Refer to Chapter 12,

  • Using GZIP compression refer to Chapter 10,

  • Combining or breaking up CSS files.

  • Minifying the CSS.

  • Removing...

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ASP.NET Site Performance Secrets
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