⚡ Speed Test

About this Speed Test

A speed test measures how fast data moves between your device and a server. Four numbers matter: download (how quickly you can pull a file from the internet), upload (how quickly you can push a file up), ping (round-trip latency to the server), and jitter (how much that latency varies). Good video calls need low ping + low jitter; large downloads need high download bandwidth; uploading a video or livestreaming needs upload bandwidth specifically.

ZakGT’s Speed Test runs against our own backend at api.zakgt.net (hosted in Singapore on Google Cloud Run), not a third-party server. That means:

• The measurement reflects your real connection to ZakGT, which is useful if you’re trying to understand why a specific ZakGT page feels slow for you.
• We don’t share your IP with a third-party speed-test service.
• Uploads are streamed and discarded — the bytes you send are counted for timing, never saved.

What counts as “fast”?

• Browsing + email — 5 Mbps down is enough
• HD video (YouTube / Netflix) — 10-25 Mbps down per stream
• 4K streaming — 25 Mbps+ down
• Zoom / Google Meet HD — 3 Mbps down + 3 Mbps up, ping under 100 ms, jitter under 30 ms
• Online gaming — not that much bandwidth, but ping under 50 ms is the thing that matters
• Livestreaming (Twitch / YouTube) — 5-10 Mbps up sustained

Why are my numbers lower than what my ISP advertised?

ISP-advertised speeds are almost always the peak number at the modem. What you measure in a browser is shaped by Wi-Fi signal, the server you’re testing against, your device’s network card, background downloads, and the browser itself. Expect 60-85% of advertised speed on Wi-Fi and closer to 90-95% on wired ethernet. If you’re seeing 10% or less, something is wrong: try wired vs wireless, reboot the router, or call your ISP.

Tips for a more accurate reading

• Close other tabs and apps that might be downloading in the background (Dropbox, Windows Update, cloud backup).
• Test over wired ethernet if possible — Wi-Fi adds variance.
• Run the test 3 times and average the results — single samples can be noisy.
• Test at different times of day; ISPs frequently slow down at peak evening hours.

Your history is saved locally in this browser’s localStorage (up to the last 20 runs). Nothing is uploaded to our server or used for advertising. See our Privacy Policy for full details.