Append domain to images

Question

I am developing a .net web application in c#/.net. For images on my site I am using relative paths. However to assist with performance of my site I am looking to introduce cookieless domains for images.

In most situations I can just add the domain to the images.

But in certain scenarios I cant and need to do it at run time. So I am looking at introducing some code to resolve the urls. I have a couple options of doing this.

1. Method in base page to loop through all the controls, add append the domain to all controls that inherit for System.Web.Ui.Image and append domain if not present.

2. Or do similar in a http module. (Is this possible)

Will doing the above slow down my site rendering? I dont want this to be counter productive!

Either of the above approaches should work ok for .net controls.

But any ideas how I might append the domain to html img tag and/or any images within my stylesheets? I probably can just set the domains of the img tag in code, but not sure of the stylesheets.

Answer 1

You can consider using Response.Filter too.