What could be causing this unexpected delay?

I have been working on improving the load time of my website as it was quite lengthy, but even after optimizations, I am facing issues specifically with the jQuery UI CSS images.

If you could spare a moment, would you mind taking a look at this Pingdom test?

Between files number 60 and 75, there are a few images from the jQuery CSS file (with renamed paths) that are taking up to 3 seconds to connect. After that initial delay, they seem to load quickly. But why should it take 3 seconds just to connect?

The relevant CSS snippet is:

.ui-icon { width: 16px; height: 16px; background-image: url(/css/images/ui-icons_222222_256x240.png); }
.ui-widget-content .ui-icon {background-image: url(/css/images/ui-icons_222222_256x240.png); }
.ui-widget-header .ui-icon {background-image: url(/css/images/ui-icons_222222_256x240.png); }
.ui-state-default .ui-icon { background-image: url(/css/images/ui-icons_888888_256x240.png); }
.ui-state-hover .ui-icon, .ui-state-focus .ui-icon {background-image: url(/css/images/ui-icons_454545_256x240.png); }
.ui-state-active .ui-icon {background-image: url(/css/images/ui-icons_454545_256x240.png); }

The path to this CSS file is: /CSS/ui.css

and the images' path is: /CSS/images/*.png

If this issue isn't related to paths, then I'm completely lost. Any ideas or suggestions?

csspathdelayload-timepingdom

Answer №1

Consider your browser's caching system when evaluating the speed of JQuery UI images. The initial test may show slow loading times, but for users with proper caching settings, any delay would only occur once. Therefore, the test may not accurately represent real-world performance.

Focusing on optimizing a 40kb background image and improving CSS efficiency should be a priority. Visit this website to reduce your css document's overhead by 13%. Additionally, consolidating CSS files can decrease HTTP requests, further enhancing loading speeds. These improvements are generally one-time adjustments due to browser caching benefits.

Relative to many websites, this site loads quickly. Unless your daily traffic exceeds 20+ million visitors or you have bandwidth constraints, the current setup is sufficient for most purposes.

Answer №2

The delay I'm experiencing doesn't seem to be very long at all. The content loads in less than a second.

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