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Lengel546

: Need a study about average latency due to HTTP request and server processing time when downloading images that are a part of DOM I'm writing a thesis about css sprites and need to know the

@Lengel546

Posted in: #Css #Http #Performance #Server

I'm writing a thesis about css sprites and need to know the of the average HTTP request overhead when establishing a connection to download an image file that is a part of DOM.

We conducted a study on one of our personal websites (the median time was 350ms) but this is server specific and can really screw up the perspective we have on the problem.

Does anyone know a study that measured this for more than one server?

An alternative would be some sources about average latency of serving image file by popular dedicated servers (such as nginx or Amazone S3).

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@Carla537

Try to take a look at www.speedtest.net/ - perhaps they don't have precisely what you need, but they will have an average data for your broadband provider, which already accumulates a sample of thousands of people :) with a bit of luck you should be able to dig out ping average for your country as well. (because your "request round trip time" is de facto Ping time).

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