The Solana order book heatmap overlays historical limit order placement directly onto the SOL price chart. Unlike a live order book snapshot, the heatmap shows you how orders appeared, moved, and disappeared over time — revealing whale accumulation zones, spoofed walls, and true support/resistance levels where real volume has repeatedly gathered.
This free preview streams the most liquid SOL spot market (Binance) in real time — watch limit orders appear, move and vanish as they happen. In the TapeSurf app, the same heatmap runs alongside a VPVR (volume profile) indicator and footprint chart, adding where volume actually traded and how aggressively each candle was bought or sold.