Test your internet speed online. Measure download speed, upload speed, ping, and jitter instantly in your browser using Cloudflare's servers.
Measure your network speed & quality
Initiate a comprehensive diagnostic of your network throughput and latency.
Leverage Cloudflare's global infrastructure to measure your connection's true performance. Our tool provides millisecond-precision metrics for download, upload, and network stability (jitter).
We utilize multi-stream testing and Cloudflare's edge network to minimize server-side bottlenecks. By measuring 'Time to First Byte' (TTFB) and sustained throughput across multiple data chunks, we provide a realistic representation of your connection's behavior in real-world scenarios.
All processing happens locally in your browser. Your data never leaves your computer, ensuring complete privacy and security.
Check HTTP status codes, response headers and redirect chains for any URL.
Generate a unique URL to easily test, receive and inspect HTTP webhooks in real-time. View request headers, query parameters, JSON payloads, and more.
Calculate IPv4 subnets, network masks, broadcast addresses, and host ranges from IP and CIDR.