Stockfish for Lichess and Chess.com

[h1a8]

These two sites allow users to analyze positions with stockfish. My questions are :
1. What is the hardware (processor and hash size) used for stockfish for both sites? What's the maximum number of threads users can utilize? Was wondering if it is more powerful than my own cpu.

2. What's the stockfish version used in analysis for both sites?

3. Any other sites that allow to analyze with a many thread stockfish (supercomputer amount of threads) and a more current version?

[MonteCarlo]

Are you talking about live analysis, with you making moves on the board and seeing lines and eval, or submitting a game for automatic analysis?

For the former on lichess, it depends on your browser, as that's where the engine is running, in the browser on your client machine. Some browsers are limited to older versions, single-threaded, etc. On the most fully compatible browsers, you can get SF14, either with or without NNUE, and use multiple threads and choose hash sizes.

For the automated game analysis on lichess, I think basically all of fishnet is updated now, so it should all be SF14. It's depth/time limited though; I don't recall the exact numbers offhand.

Cheers!

EDIT: Did some digging and on lichess the server-side analysis (automatic game analysis) is actually limited by number of nodes, 2.25Mnodes with SF 14 NNUE at the moment.

[purechess]

You can read this on Lichess what they use and what for.