WebPageTest using real mobile networks
summary
WebPageTest integrates with Headspin.io so tests run from real mobile networks in places like Bangalore, Rio and São Paulo instead of simulated throttling. The setup uses a headless browser + real phones attached to a Mac Mini so all network traffic traverses local ISPs. Measured results: Facebook load ~6s (SF), ~12–14s (Rio), ~26–30s (Bangalore); Etsy ~4s even in Bangalore; BBC ~20s; a CNN test hits ~94s in Bangalore, showing large real-world variation.
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