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Speed Testing

Speed Test Server Selection

The test server you connect to directly affects your speed test result. Closer servers generally show faster speeds, while distant servers introduce latency and potential bottlenecks.

What It Means

Speed test services automatically select a nearby server, but you can manually choose different servers to test different aspects of your connection. Testing to a server in your city measures your last-mile performance. Testing to a server across the country measures your ISP's backbone and peering quality. Some ISPs host their own speed test servers, which bypass potential peering congestion and show optimistically high results. For an unbiased test, choose a server hosted by a neutral party (like Netflix's Fast.com) in a different city.

Frequently Asked Questions

What does "Speed Test Server Selection" mean?

The test server you connect to directly affects your speed test result. Closer servers generally show faster speeds, while distant servers introduce latency and potential bottlenecks.

Why does Speed Test Server Selection matter for internet quality?

Speed test services automatically select a nearby server, but you can manually choose different servers to test different aspects of your connection. Testing to a server in your city measures your last-mile performance. Testing to a server across the country measures your ISP's backbone and peering ...

Related Terms

Internet Speed Test
A tool that measures your real-world download speed, upload speed, and latency by transferring data to and from a nearby test server. Results vary by test methodology and conditions.
Speed Test Accuracy
The reliability of speed test results depends on testing conditions, device capabilities, connection type (wired vs. Wi-Fi), and the test server location. No single test gives a complete picture.
Single-Thread vs. Multi-Thread Speed Test
Two different speed test methodologies. Single-thread tests measure one connection stream (more realistic for typical use), while multi-thread tests use many parallel streams (showing maximum capacity).
ISP Speed vs. Wi-Fi Speed
The difference between the speed your ISP delivers to your modem (ISP speed) and the speed you experience on your device over Wi-Fi (Wi-Fi speed). Most "slow internet" complaints are actually Wi-Fi problems.

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About This Data

Definitions based on FCC standards, industry specifications, and federal broadband policy. Speed benchmarks reflect 2024 FCC standards. See our methodology.