ASP.NET Site Performance Secrets by Matt Perdeck

By Matt Perdeck

Easy and confirmed recommendations to fast accelerate your ASP.NET websiteSpeed up your ASP.NET web site by way of settling on functionality bottlenecks that carry again your websites functionality and solving themTips and tips for writing swifter code and pinpointing these parts within the code that subject such a lot, hence saving time and energyDrastically decrease web page load timesConfigure and enhance compression - the only most crucial option to enhance your websites performanceWritten in an easy problem-solving demeanour - with a realistic hands-on strategy and simply the correct quantity of thought you must make feel of all of it [

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This number can be negative if the request started after the DOM became ready. 'load' (event) Time between the start of the DNS lookup of this request and the page having been fully loaded, including the images. In addition to this timing popup, there are two more. Hover over the file size to see the precise size of the file in bytes. To see the full URL of a file, hover over its name. Page-level information At the very bottom of the Waterfall chart, you will find the total number of files making up the page, their total size and the total page-load time: Saving information To save the headers to the clipboard, right-click on a file to get a popup with a save option.

This can have a big impact on overall page load time. When an external JavaScript file starts loading, rendering of the rest of the page is stopped until the file has completed loading and executing. This ensures that the JavaScript coming later in the page can use JavaScript libraries that were loaded and executed earlier on. CSS files also block page rendering in order to ensure that the visitor is not exposed to the "raw", unstyled version of the page. [ 18 ] Chapter 1 The following chart shows a different scenario where JavaScript code blocks rendering of the rest of the page, not by being slow to load but by taking a long time to execute.

You can then paste the headers to a text file. html. Once you have this installed, an Export button appears above the Waterfall chart, next to the All button. har file. har file in your favorite text editor, you'll find that the file stores the information in JSON format. com/har/viewer/. aspx file taking too long to load • Images (and flash files) taking too long to load • JavaScript and CSS files blocking page rendering The following sections show how each broad category expresses itself in a Waterfall chart generated by Firebug.

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