⚡ Performance Lab

Test your web app on a slow connection

Analyze page weight, simulate real-world mobile networks, and get AI-powered recommendations — so your users on 3G never wait.

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Real Connection Profiles

Simulate 2G GPRS, 3G, 4G, and Slow WiFi — including latency and bandwidth constraints.

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Resource Analysis

Probe each script, stylesheet, image, and font. See exactly what slows down your page.

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AI Recommendations

Get prioritized, actionable optimization tips generated by Claude — tailored to your page's specific bottlenecks.

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Bandwidth Test

— score

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Simulated load time
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Page weight
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TTFB (real)
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Resources found
Simulated load time across connection profiles
Resource breakdown by type
AI Recommendations