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3G
Abbreviation for third generation of mobile networks
In short and in plain language
3G is an older generation of mobile networks.
It is slow, and answers take a long time. Test tools can play back such a slow connection.
Large files and many requests then slow a page down the most.
Definition
3G refers to the third generation of mobile networks, with comparatively low bandwidth and long response times. In measurement tools, 3G also names a profile that simulates a slow mobile connection. On such connections, large files and many separate requests weigh especially heavily.