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    <p>If you think that an ordinary user would visit at least two different pages with these thumbnails than my opinion is that using sprites would <strong>really be a good idea</strong>!</p> <p>I would in fact make a single big image with all the thumbnails and then use it in all the pages!</p> <p>Why?</p> <ul> <li>Fewer http requests (from 100 to 1)! And this is one of the most important thing about web site optimizations (read here from <a href="http://developer.yahoo.com/performance/rules.html" rel="noreferrer">Yahoo Performance Team speed optimization rules</a> )</li> <li>This way users will download the whole image only the first time and then they will get a super quick loading of that images in all the following pages</li> <li>The most famous websites on the internet already do that! See sprites used in <a href="http://l.yimg.com/a/i/ca/sp/purple/fp_spt_icons_0.0.2.png" rel="noreferrer">Yahoo</a>, <a href="http://www.flickr.com/photos/mezzoblue/3217540317/" rel="noreferrer">Amazon</a> or <a href="http://s.ytimg.com/yt/img/master-vfl140994.png" rel="noreferrer">Youtube</a> pages.</li> <li>You can add other UI or layout images to your sprite</li> </ul> <p>Optimize the resulting PNG:</p> <p>After you have generated your sprite, if a PNG, you can optimize the PNG even more using this tool: <a href="http://www.sitepoint.com/blogs/2009/09/18/squishing-the-last-drops-from-your-pngs/" rel="noreferrer">http://www.sitepoint.com/blogs/2009/09/18/squishing-the-last-drops-from-your-pngs/</a></p> <p>When not to use sprites:</p> <ul> <li>When part of the images in the sprite change frequently</li> <li>In this specific case: when the majority of users would need less than the (about) 10% of the images</li> </ul>
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    1. POShould I use a sprite-like technique for thumbnails on my website?
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    1. USAndrea Zilio
    1. USAndrea Zilio
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    1. POShould I use a sprite-like technique for thumbnails on my website?
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    1. COThanks, this is a very useful answer! It was the Yahoo! performance stuff that inspired this question. I'm curious about the "10%" figure. Do you have more information about that?
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      1. USJeremy Kauffman
    2. CONo jeremy, it's not a rule and there not exist a rule like this. It really depends on your situation and it would more correct to think in terms % of sprite size your users will need than the number of images your users will need. Anyway, in your case where you have 64x64 pixels images and pages that uses 5 to 15 or all images I think that a rule like this is OK and so the 10% is a my opinion based on your specific case. (I've specified this in the answer, I hope it's more clear now)
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      1. USAndrea Zilio
 

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