Test Your Internet Speed
in Seconds
Accurate download, upload, ping, and jitter measurements powered by the open-source M-Lab NDT7 protocol. No sign-up required.
Understanding Your Results
Four numbers tell the story of your connection quality. Here is what each one means.
How fast data arrives at your device. Affects streaming, browsing, and downloads.
How fast data leaves your device. Critical for video calls and file sharing.
Response time to a server. Lower is better. Under 20ms is excellent for gaming.
Variation in ping over time. High jitter causes choppy calls and laggy gaming.
Get a More Accurate Result
Follow these steps before running your test for the most reliable measurement.
- Connect your device directly to your router with an Ethernet cable when possible.
- Close other browser tabs, streaming apps, and background downloads before testing.
- Run the test at different times of day since network congestion affects results.
- Run at least three tests and compare the results for consistency.
- If results are far below your plan speeds, contact your ISP with your test data.
Internet Speed Guides
Expert explanations to help you understand and improve your connection.
Is My Internet Speed Good?
Enter your download, upload, ping, and jitter and get a letter grade for each, with a plain-English verdict.
What Is DSL Internet?
How DSL uses telephone lines, what speeds it delivers, and how it differs from other connections.
What Do My Results Mean?
Enter your speed test numbers and get a plain-English explanation of each one.
How Many Mbps Do I Need?
Work out the bandwidth your household needs from the devices and activities running at once.
Ping and Gaming
What ping measures and how much of it online games and video calls can tolerate.
How a VPN Affects Your Speed
How much a VPN slows your connection, and when it can actually help.
Free Internet Tools
Run a test, then use these tools to understand your results and plan the right connection.
Bandwidth Calculator
Find out exactly how many Mbps your household needs based on simultaneous device usage.
Speed Grade
Enter your test results and get a letter grade for each metric with a plain-English verdict.
ISP Lookup
See which internet provider is serving your connection right now and your public IP address.
Frequently Asked Questions
Quick answers to common speed test questions.