Network Throttle Impact

v1.0.0

Predict load timing under 3G / 4G / fast 3G profiles given asset sizes and waterfall.

JavaScript (KB)

CSS (KB)

Images (KB)

Network Profile

Result

Network Load Time Estimate

Assets:    JS 300 KB  CSS 50 KB  Images 500 KB
Total:     850 KB
Profile:   Fast3G (180 KB/s, 150ms RTT)

Transfer time:  5.17s
JS parse/exec:  0.15s
Total est.:     ~5.32s

Target: < 3s on Fast 3G for good user experience.
Warning: 850 KB is heavy — aim for < 200 KB total compressed.