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I noticed that, images on facebook loads probably in a little different way(besides resizing/cdn), like load part by part of the images and aggregate them into final image. Is my assumption correct? If yes, what kind of techniques are used to achieve such behavior please? Thanks.

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closed as off-topic by DA01, Matt Obee, JonW Oct 17 '13 at 13:49

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions about Implementation are off-topic because this site is for User Experience design questions, not questions around how to implement these designs. Therefore, questions around the use of programs like Photoshop or languages such as CSS or JavaScript are off topic." – DA01, Matt Obee, JonW
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I'm not sure, but either way, this isn't a UX question. Sounds like a code/implementation question. I'd ask on StackExchange – DA01 Oct 17 '13 at 4:37
Off topic, however: I am not sure this is what you mean, but, a. various image formats have different compression options e.g. progressive JPEG, which doesn't effect the total load time, however, causes the image to load lower frequencies first, so it looks like it is all there but because less blurred while loading vs. regular load from top to bottom. b. Facebook probably has more servers and faster connections than your personal site – Danny Varod Oct 17 '13 at 13:58