What's the advantage of client-side analytics over server-side?

Server-side Advantages: Servers can be setup up with infinitely more power then desktop machines and so can crunch 'the big numbers'. Performance can be more predictable as the same machines are used for everyones analysis and generation of results. Output will not have dependencies on browser / browser version as they just have to display an image.

Output can also be multi-device without any dependencies. Output can be the same everywhere both reducing client issues and also making the image generation be about supporting 1 output format over many. Client-side Advantages: If the number of clients is large, say thousands per minute, it can be good to unload the processing to client machines to avoid having them slow down a central server.

Solutions tend to provide more interactivity and faster results as all the data and the logic is on the client. Once downloaded initially, views can be changed without being online. If the traffic varies a lot, say sometimes a few queries per hour, other times, hundreds per minute client-side makes sure that a central server is not over-loaded by this effort Server-side infrastructure will not be needed and so will not cost (the provider) money.

Many companies use both Google Analytics (client side) and Webtrends (server side/client side) to do web analytics. One thing about Google Analytics is that it doesn't work when the user doesn't allow scripts. Webtrends can crawl your access logs.

Client-side tracking provides more information in comparison with server-side tracking.

– David Ball Nov 21 at 11:34 I'm not down-voting as I have a competing answer but this really is not 'helpful' w/o more detail. – Michael Durrant Nov 21 at 11:52.

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