About

BottleneckRadar helps identify what is slowing a browser session down

BottleneckRadar is a browser-based diagnostic tool for people who want a practical answer to one common question: is the slowdown more likely coming from the CPU, GPU, memory, browser support, or connection quality?

The scanner runs short local checks for CPU responsiveness, WebGL graphics rendering, browser memory throughput, modern browser capability, and same-origin network timing. It then turns those measurements into a readable report and a CPU/GPU balance estimate.

How to use the results

The results are meant to point users toward the next useful check. A low GPU result can suggest disabled hardware acceleration. Weak network timing can explain lag in calls or games even when download speed looks acceptable. A falling CPU result can point to heat, power limits, or background workload.

What the scanner is not

BottleneckRadar is not a lab benchmark, warranty test, or hardware certification tool. Browser APIs intentionally limit hardware details, and results can vary by operating system, browser, power mode, drivers, thermals, extensions, open tabs, and network route.

Editorial approach

Guides are written to explain test results in plain language and keep recommendations separate from diagnostic output.