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Professional-grade internet diagnostic tool. High-precision measurement of bandwidth, latency, and connection stability.
KaruviLab Speed Test provides professional-grade network diagnostics entirely within your browser. Using adaptive multithreading and local-only processing, we measure your true bandwidth capacity without the overhead of third-party tracking pixels. Our analysis includes 'Loaded Latency' to detect bufferbloat—a critical factor for gaming and video calls.
Network speeds are affected by many factors: Wi-Fi signal strength, router hardware, time of day (congestion), and protocol overhead (TCP/IP usually takes 5-10%).
Jitter is the variance in latency over time. Low jitter (under 10ms) is essential for smooth video calls and online gaming, as it ensures packets arrive in a steady rhythm.
Loaded Latency (or Bufferbloat) measures your ping while your connection is busy downloading or uploading. A high jump in ping under load indicates poor network management by your router or ISP.
Yes. Unlike most speed tests, KaruviLab doesn't use third-party tracking or upload your IP to a public database. All calculations happen locally.