This client‑side test measures two signals per endpoint: time to open the WebSocket and time to receive the first message (via a harmless JSON‑RPC). Results vary by region and network conditions. Tokens or whitelists may be required for some providers.
Ethereum
| Name | Endpoint | Open (ms) | First msg (ms) | Status |
|---|---|---|---|---|
| Public WS 1 | wss://rpc.ankr.com/eth/ws | — | — | — |
| Public WS 2 | wss://ethereum.publicnode.com | — | — | — |
BNB
| Name | Endpoint | Open (ms) | First msg (ms) | Status |
|---|---|---|---|---|
| Public WS 1 | wss://bsc.publicnode.com | — | — | — |
Polygon
| Name | Endpoint | Open (ms) | First msg (ms) | Status |
|---|---|---|---|---|
| Public WS 1 | wss://polygon-bor.publicnode.com | — | — | — |