SpeedTestms
Latency
The delay between a request and response. Lower latency usually feels more responsive for calls, games, and browsing.
Internet speed test
Test your internet speed.
Run a free internet speed test to check download speed, upload speed, and ping latency from your browser. Then use the SpeedTest iPhone app when you need diagnostics and practical network tools.
No account
No advertising SDK
Results stay in this browser
Speed Test
Ready
0.00
Mbps
Latency0.00ms
Download0.00Mbps
Upload0.00Mbps
Browser result
Uses Cloudflare test endpoints. Your IP address is visible to that service.
Three useful signals
Understand the numbers, not just the headline.
A fast connection needs more than a large download number. Each measurement describes a different part of the experience.
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Download
How quickly data reaches you. It matters for streaming, downloads, browsing, and software updates.
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Upload
How quickly you send data. It affects video calls, cloud backup, sharing files, and live streaming.
The iPhone app
Go beyond a single speed score.
SpeedTest combines a focused connection test with tools for investigating slow Wi-Fi, reachability, local devices, public IP details, and gaming service response times.
- Run download, upload, and latency tests
- Check network health with guided diagnostics
- Use Ping, Route, LAN Scan, Geo IP, and Connection Info
- Compare HTTPS response times for popular game services
- Keep up to 100 recent results on your device
On this device
Recent browser tests
Your last results are stored in this browser only. Clearing browser site data removes them.
| Date | Latency | Download | Upload |
|---|---|---|---|
| Your completed browser tests will appear here. | |||
Learn
Make the result useful.
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Read a speed result
Learn what Mbps and latency mean and which factors can change a browser test.
Wi
Improve Wi-Fi
Use a repeatable checklist to find weak signal, interference, congestion, and router issues.
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Reduce game latency
Separate local network delay from internet routing and remote service response time.
Diagnose more than speed.
See the focused checks built into the SpeedTest iPhone app.