1. Futures Exchange official website: Most futures exchanges provide real-time quotation and trading information of futures contracts. You can log on to the official website of the relevant exchange to find the corresponding futures spread arbitrage information.
2. Commission website: Many commissions provide online trading platforms, including real-time market data and quotations. You can query futures spread arbitrage information through brokerage websites or trading platforms.
3. Futures market software: There are many professional futures market software that can provide real-time futures market data and spread information. You can download and install the software, and then query and analyze it.