Output
HTTP timing or host transfer throughput
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Connection Speed Test
Estimate download and upload throughput to this website, subject to hosting and caching limits.
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Connection Speed Test · At a glance
Quick answer: Estimate download and upload throughput to this website, subject to hosting and caching limits. Throughput can be limited by hosting, file size, TLS and buffering.
Connection Speed Test
The test loads when you open it. Device access is requested only after you choose to start.
Detailed guide
How to use this tool
- Run the bounded transfer to this host with other downloads quiet.
- Compare repeated runs rather than one peak.
Input
Requests only to this website
Browser requirement
PHP endpoint; HTTPS hosting
Processing
Requests to this website; hosting can affect the result
How it works and what the result means
Latency is an HTTP round trip including TLS, server processing and browser overhead. Throughput is to this host and may be constrained by hosting, compression, caching or buffers.
Reading the result
Throughput can be limited by hosting, file size, TLS and buffering. The result is not certification of the maximum speed of your ISP line.
Understand a host-limited speed estimate
A bounded random binary payload avoids highly compressible content. Request time includes TLS, server overhead and buffering. Small payloads can underestimate fast connections; hosting can cap speed even on a healthy internet link. Use the result for comparisons to this site, not as certification of an ISP plan.
What to check next
Use functioning PHP hosting and check that caches or intermediaries do not replace the intended payload. Very fast links need larger independent tests.
This is not ICMP ping, UDP packet-loss measurement or a test of every internet route. The PHP endpoint must be enabled on the host. Timeouts are request failures, not measured network packet loss.
Frequently asked questions
Why is the result below my internet plan?
The path to this server and the bounded payload can be limiting factors. Wi-Fi, other traffic and server capacity also affect the measurement.
How do I start the Connection Speed Test?
Start a short test to this website. Keep other downloads quiet when measuring baseline latency or throughput.
Does this tool require a download or an account?
No. Open the interactive tool above in a modern browser. The instructions and explanations are available even with JavaScript disabled; running a test needs JavaScript.
Why can two attempts give different results?
Power settings, background tasks, browser scheduling, operating-system input processing and device settings affect measurements. Compare repeated attempts with identical settings rather than the single highest score.