NetSpeedLite.com
Free Speed Test
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Check your connection

Measure your internet download speed, upload speed and ping in seconds.

Internet Speed Test

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Speed Test by ISP & Country

NetSpeedLite works for every ISP worldwide — jump to a dedicated test page for yours

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🇺🇸 United States

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🌍 Worldwide

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Frequently Asked Questions

Everything you need to know about internet speed testing

What is a good internet speed?
For most households, 25 Mbps download is sufficient for HD streaming. 100 Mbps handles multiple devices and 4K streaming. For gaming and video calls, aim for ping under 50 ms.
Why is my internet speed slow all of a sudden?
Common causes: peak-hour congestion, WiFi interference, too many devices, an outdated router, ISP throttling, or a line fault. Plugging in via ethernet instantly rules out WiFi.
What upload speed do I need for video streaming?
1080p live streaming needs 5–8 Mbps upload. 4K streaming requires 15–25 Mbps. HD video calls on Zoom or Meet need at least 3 Mbps upload.
What is the difference between download and upload speed?
Download — how fast data arrives at your device (streaming, browsing). Upload — how fast your device sends data (video calls, cloud backups). Most home plans have far faster download than upload.
How do I fix high ping on WiFi?
Move closer to your router, switch to the 5 GHz band, use a wired cable, close background apps, restart your router. If ping is consistently high on wired, contact your ISP.
What is NDT7 and how is it more accurate?
NDT7 (Network Diagnostic Tool v7) is an open-source protocol by M-Lab used in Google's speed test. It measures speed via WebSocket to globally distributed neutral servers and reports upload speed server-side — making it more accurate than CDN-based HTTP tests.
What internet speed do I need for 4K streaming?
Netflix recommends 25 Mbps for 4K UHD. YouTube 4K needs ~20 Mbps. For a family streaming 4K on multiple screens, 100 Mbps or above is recommended.