What Is an Internet Speed Test?

An internet speed test measures how fast data travels between your device and the internet. SpeedIQ uses Cloudflare's global edge network to give you the most accurate real-world measurement — not a number inflated by ISP-favored servers.

A reliable speed test measures three things: download speed, upload speed, and latency (ping). Each matters for different activities.

Download Speed

Download speed measures how fast data comes from the internet to your device. Streaming, browsing and downloading files all depend on this number. For 4K Netflix streaming, you need at least 25 Mbps. For a household with multiple users, 100 Mbps or more is recommended.

Upload Speed

Upload speed measures how fast you can send data from your device to the internet. Video calls, uploading files, and live streaming depend on upload speed. Most home internet connections have much lower upload than download — this is normal for cable and DSL connections.

Ping and Latency

Ping measures the delay between your device and a server, in milliseconds (ms). For gaming, low ping is critical — under 30ms is excellent, under 60ms is good. For video calls and streaming, latency matters less than bandwidth.

Why SpeedIQ Gives Different Results Than Other Tests

SpeedIQ tests your connection against Cloudflare's public internet infrastructure — the same path your real traffic takes. Some speed test tools use servers inside your ISP's network, which gives artificially high results that don't reflect your actual internet experience.

How to Get the Most Accurate Speed Test Results

For accurate results: connect via ethernet cable instead of WiFi if possible, close other apps and browser tabs that use bandwidth, run the test at different times of day, and run it 3 times and average the results.

What Is a Good Internet Speed?

For basic browsing and streaming: 25 Mbps download is sufficient. For working from home with video calls: 50-100 Mbps. For a household with multiple users and 4K streaming: 200+ Mbps. For fiber gigabit connections: 500-1000 Mbps.

Test Your Speed Now

Use SpeedIQ to run a free, accurate internet speed test. SpeedIQ also includes 18 browser intelligence tools including WebRTC leak test, DNS leak detection, canvas fingerprinting and more — all in one place.