ASP.NET Web Optimization tips

Good starting point:
http://www.hanselman.com/blog/TheImportanceAndEaseOfMinifyingYourCSSAndJavaScriptAndOptimizingPNGsForYourBlogOrWebsite.aspx

This seems like a nice “does it all” nuget package:
http://www.codeproject.com/Articles/69484/Combres-2-0-A-Library-for-ASP-NET-Website-Optimiza

Supports:
Bundling and minifications, gzip, cache headers


Overview
Combres (previously hosted in CodePlex) helps your ASP.NET and ASP.NET MVC applications perform faster and rank better with YSlow and PageSpeed.

Features highlights:

  • All in one solution supporting JS/CSS combinationminificationcompression and caching (by adding proper Expires/Cache-Control headers, ETag and server-side caching)
  • Easy to use, simply download it via Nuget, declare JS and CSS resource groups in an XML file and use them in your pages, Combres will take care of the rest
  • Integrated with ASP.NET routing engine and work with ASP.NET WebForm 3.5/4.0/4.5, ASP.NET MVC 2/3/4 and Azure web applications
  • Detect changes in Combres config file, managed JS/CSS files and support auto-versioning, so you don’t have to manually rebundle JS/CSS resources after making changes to them
  • Extensible architecture with many extension points
  • And many more: CDN, HTTPS, debug mode, external JS/CSS (dynamically requested from other servers), Less CSS etc.
  • Proven solution with many thousands of downloads in NuGetCodePlex and The Code Project

An Overview of Project Katana : The Official Microsoft ASP.NET Site

The ASP.NET Framework has been around for over ten years, and the platform has enabled the development of countless Web sites and services. As Web application development strategies have evolved, the framework has been able to evolve in step with technologies like ASP.NET MVC and ASP.NET Web API. As Web application development takes its next evolutionary step into the world of cloud computing, project Katana provides the underlying set of components to ASP.NET applications, enabling them to be flexible, portable, lightweight, and provide better performance – put another way, project Katana cloud optimizes your ASP.NET applications.

via An Overview of Project Katana : The Official Microsoft ASP.NET Site.