Tip #1: Be Aware of PNG Limitations in Internet Explorer
The Portable Network Graphic (PNG) format is well supported by modern browsers (e.g. IE 6+, Firefox 1+ and Opera 5+), except for two issues with Internet Explorer:
Graphics tools like Adobe Photoshop save a Gamma correction table in the PNG file that is designed to allow for differences […]
There’s a post over on the Gmail blog by Wiltse Carpenter, the Tech Lead for Gmail Performance, about how they used HttpWatch and other tools to speed up the login for Gmail.
Here’s what they said about HttpWatch:
“The Httpwatch plug-in for Internet Explorer was one that proved easy to use and provided us with most of the […]
If you’re tuning a web page’s performance there are two types of visitors that you need to be concerned about:
A new visitor to your site who won’t have any of your pages, scripts, CSS or images in their browser cache.
An existing user of your site who will have your cacheable pages, scripts, CSS or images in […]
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