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Fast load times

Google (web.dev) · web.dev Free Intermediate

This is Google's own practical playbook for speeding up pages, organized by exactly the things that hurt on a slow connection: images, fonts, and heavy JavaScript. Instead of vague advice it links to specific, hands-on guides you can work through one at a time. Treat it as a starting point and a menu: fix the biggest offenders PageSpeed flagged for you, do not try to do all of it at once.

• Optimizing images (right format, compression, responsive sizes, lazy loading) gives you the biggest speed win for the least effort.
• Web fonts silently block your text from showing, so subset them and use font-display: swap so copy renders immediately.
• Cutting and splitting JavaScript matters most for low-end phones common outside the big metros, where the CPU, not just the network, is the bottleneck.