Internet speed test: measure ping, download and upload for free

Download (in Mbps or Mbit/s) is the speed from the data center to you; upload is the speed from you to the data center. Ping is the round-trip response time in milliseconds: under 20 ms is ideal for Game Servers, under 50 ms is good, and over 100 ms causes noticeable lag. Jitter measures ping variation; under 5 ms indicates a stable connection. A typical result looks like this: download 412.6 Mbps, upload 95.3 Mbps, ping 11.8 ms, jitter 1.4 ms.

The rating is based solely on your download speed: 500 Mbps or more is “Excellent”, 200 Mbps or more “Very good”, 100 Mbps or more “Good”, 25 Mbps or more “Fair”, and anything below that “Low”. So if you get the full speed of a 100 Mbps plan, you'll receive a “Good” rating. The Mbit/s on your plan is the same unit as Mbps in the results. These ratings are a rough guide for streaming, downloads and gaming; depending on the application, lower speeds may be enough for your own server.

Every speed test measures against its own server. This one measures against a ZAP-Hosting data center in Eygelshoven (EGH), Ashburn (ASX), Dallas (DAL), or Los Angeles (LAX). With “Automatic,” your browser sends a short request to each location and selects the one with the lowest latency. You can use the location dropdown to choose a specific location. A test against a server closer to you may give different results without either test being wrong. That’s why the result is not suitable as official proof for your internet provider.

With “Quick (Auto),” the test measures download and upload for up to 15 seconds each and stops earlier on fast connections. The result is usually ready in about half a minute. With “15 seconds” or “30 seconds,” it measures for the full duration in each direction, so the entire test takes about twice the selected number of seconds, plus a few seconds for ping, jitter, and startup. Use “Cancel” to stop the test at any time.

Over Wi-Fi, you measure the speed reaching your device through your Wi-Fi network. That's useful for checking the Wi-Fi itself. If the result is below your plan's speed, the most common causes are using Wi-Fi instead of Ethernet, other devices or downloads using the same network during the test, or a router/modem bottleneck. To measure the actual speed of your internet connection, test with an Ethernet cable and no other network activity.

Yes, the speed test is free and works without an account or app. After the test, the result is saved at a short link shown in the address bar. Use “Share result” to copy the link or share it via WhatsApp, or use the download icon to save the result as an image.

With a command that only needs sh, curl, awk, and standard tools such as sort and sed: curl -fsSL https://zap-hosting.com/speedtest/zap-speedtest.sh | sh – it measures ping, jitter, download, and upload directly from your server to a ZAP-Hosting data center. Add options such as --location, --duration (3 to 30 seconds), and --streams (1 to 8) using sh -s --. Please don’t run it in loops or via Cron; the endpoints are public test servers.

Append --json: curl -fsSL https://zap-hosting.com/speedtest/zap-speedtest.sh | sh -s -- --json – the script outputs exactly one line of JSON with ping_ms, jitter_ms, download_mbps, upload_mbps, the location and transferred bytes, or the error and code fields if an error occurs. It also uses fixed exit codes (0 success, 1 invalid options, 2 no location reachable, 3 test failed, 4 curl or awk missing), so an AI agent with terminal access can evaluate the results directly. The location list is available at https://zap-hosting.com/speedtest/servers.json.