Use real upload and download transfers. Select a profile when you arrive.
What is an internet bandwidth test?
A speed or bandwidth test measures the rate at which sample data moves over a network path. Download speed influences video playback, web pages and game downloads. Upload speed matters when sending files, backing up photos, hosting a session or presenting video on a call. The result is a measurement from your browser to the test server—not a direct inspection of the advertised maximum on your internet plan.
How to get a reliable measurement
Use the same device and browser for comparisons. Temporarily pause cloud backups, large downloads and streaming on the same network. Test once on WiFi and, if available, again over Ethernet. Perform several tests, especially in the busy evening, and look for a pattern rather than treating one number as a guarantee.
Mbps versus megabytes per second
Internet plans typically advertise megabits per second (Mbps). File-download progress tools often show megabytes per second (MB/s). One byte contains eight bits. A result of 80 Mbps corresponds to about 10 MB/s in ideal conditions, before protocol overhead and other limitations.
Why results change throughout the day
Routing, server capacity, household usage, WiFi interference, VPNs and browser behavior can all alter the reading. A very fast plan will not automatically fix stutter caused by high jitter or long response time. Compare your throughput with the activities you actually use most.
What should you do if results look low?
Restart a problematic application before assuming your provider is at fault. Check for background transfers, move closer to your WiFi router, and compare against a wired test. If both remain consistently far below your plan under controlled conditions, record the time and contact the provider with multiple examples.
Continue learning
Measure the numbers, then interpret them using our bandwidth results guide. For wireless performance, see WiFi speed testing; for latency-sensitive use, see the gaming internet guide.