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WebSocket Stress Test

Subscription Load Tester

Test the limits of your WebSocket connections. Simulate high-frequency event subscriptions to check for dropped messages.

Connect Provider

Infrastructure Tool

WebSocket Performance Tuning

WebSockets (WSS) enable real-time, two-way communication between your dApp and the blockchain. Stress testing ensures reliable event delivery.

HTTP vs. WebSocket

HTTP is "pull" (you ask for data). WebSockets are "push" (the server sends data when it happens). WSS is essential for listening to events like `Transfer` or `Swap`, or monitoring mempools for pending transactions.

Common WSS Issues

Connection Drop: Silent disconnections are common. Always implement a "heartbeat" (ping/pong) and auto-reconnection logic.
Message Queue Overflow: If the node sends events faster than your app can process them, buffers fill up and you start dropping data.

Frequently Asked Questions

Most RPC providers have a timeout (e.g., 60s) if no data is sent. Some also limit the number of active subscriptions per IP.

For real-time data (like new blocks), yes. You receive the notification immediately, saving the latency of repeated polling overhead.

Providers limit how many topics you can subscribe to at once (e.g., watching 10,000 token pairs). Stress testing helps identify these limits before you hit them in production.

Always use WSS (WebSocket Secure) over TLS. Additionally, authenticate the initial handshake using a token or API key to prevent unauthorized access to your stream.