What is the difference between "CLOUD" and "BROWSER" analysis?

What is the difference between "CLOUD" and "BROWSER" analysis with regard to the Stockfish engine choices?

The Cloud option is the engine being used when hitting the position analysis option and runs on the site servers 

The browser analysis runs on the client side.

so the cloud is better?

The server side is just quick and convenient using a very powerful machine, but only for a short period of time. If you run the analysis on your own computer you can set the options for a much greater depth and just allow your machine to sit and crunch the numbers. It's not so much a matter of better or worse, just different. For most things a shallow analysis is just fine. Occasionally, on very complicated positions, you need to let the computer think longer, but that isn't an option on the server side analysis. At least I don't think it is.

It's probable the server side is going to go deeper more quickly than the browser version, but if the same engine is being used, the results should be similar.

@Martin_Stahl in terms of the actual analysis functionalities: when is the server engine used, and when is the client browser engine used? If you can shed some light on this:

1. When one finishes a game and taps the analyse button which engine does the job?
2. In addition there is an analysis evaluation bar that one can use to measure real time advantage move by move - which engine is being used in this function?
3. Then likewise which engine is being used to report on the best move to use move by move? This is also the function that shows the best move graphically on the board with arrows.
4. And lastly which engine is being used to calculate the output on the "no of lines" function (the multi PV function i.e the principal variations).

I believe all those use the local browser engine, but I'm not 100% sure.

A full game review uses the server. The position/cloud analysis uses the server. Retries load from the initial review run if you guess the best move, otherwise it runs the move analysis on the server.

I think everything else is browser.