Test your internet connection stability online. Measure latency, jitter, packet loss, ping spikes and connection dropouts over time with a free browser-based stability test.
Measures instant round-trip latency over a short burst of probes to check raw response time.
Focuses specifically on packet delivery ratios and dropped probe percentages.
Combines latency, jitter, loss, spikes, and consistency over continuous time to rate overall connection health.
Real-time latency timeline plotting normal probes, spikes, late packets, and explicit probe loss markers.
Click "START STABILITY TEST" to begin continuous round-trip latency and spike monitoring over time.
Your internet connection demonstrated excellent stability during this test run.
Stability evaluates connection consistency over time using Latency, Jitter $J$, Probe Loss $\%$, and Ping Spike Frequency.
Probes exceeding baseline median latency by Δ L ≥ max(35ms, 0.75 × Median) are flagged as ping spikes.
Score S = 100 - (Loss% × 2.5) - (Jitter × 1.2) - (Spikes × 4) - (σ_L × 0.15) bounded between 0 and 100.
Run comparative tests (Wi-Fi vs Ethernet) to pinpoint whether instability originates from local wireless congestion or external ISP routing.
Quick answers about how this tool works.
Plain-language explainers that sit next to this tool.
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