网络测速
测试您的网络下载速度、上传速度和延迟
speed.cloudflare.com
About This Tool
Measure your internet connection speed with our free online bandwidth test. Test your download speed, upload speed, and network latency (ping) in seconds. Our internet speed test uses optimized server connections to provide accurate results for broadband, fiber, and mobile connections. Perfect for checking if you are getting the speeds promised by your ISP.
How to Use
- Click the "Start Test" button
- Wait while we measure download speed, upload speed, and ping
- Review your results and compare with your ISP promised speeds
FAQ
What is a good internet speed?
For general use, 25 Mbps download is sufficient. For 4K streaming and gaming, 100+ Mbps is recommended.
Why is my speed slower than what I pay for?
Wi-Fi interference, network congestion, old hardware, or ISP throttling can reduce actual speeds.
What is ping/latency?
Ping measures the round-trip time for data to reach a server. Below 20ms is excellent, above 100ms may cause lag.
Can other devices affect my speed test?
Yes, pause downloads, streaming, and gaming on other devices for the most accurate results.
How often should I test my speed?
Test monthly to monitor consistency, or whenever you experience slow internet performance.