How can I see what my web site looks like in various browsers? Short of actually having every different browser version installed, is there any tool or service that can provide a preview?
I have changed the DNS for my domain. what code (or header) should I use in my old server to tell the visitor's browser or ISP that it should check for my new DNS and the current content is old? is ...
We are deploying a web application and I am considering replacing some of the JPEG graphics with PNG. Has the use of PNG-aware browsers passed 95%?