Everything from

web.dev (Google)

6 resources from web.dev (Google) we point founders to, and the questions each answers.

📄 Article
✓ Link checked Free Intermediate

Why we picked it Twitter Lite is roughly 600KB over the wire versus a 23.5MB native install, and it grew engagement in emerging markets on flaky networks. For users on cheap phones with little storage, this is the clearest example of why smaller and web based often wins. It also shows a data saver approach worth copying.

Twitter Lite increases engagement and reduces data usage

From web.dev (Google)

  • The web version was a tiny fraction of the native app size
  • It loaded in under five seconds on 3G
  • Lower data use lifted engagement in emerging markets
Open web.dev
🎓 Course
✓ Link checked Free Intermediate

Why we picked it If you decide the mobile web is your path, this free course teaches how to make it installable, work offline, and feel app like from one codebase. It closes the gap between 'just a website' and something users can keep on their home screen. Practical and hands on when you are ready to build.

Learn PWA

From web.dev (Google)

  • One codebase can run everywhere and still install
  • Offline and home screen support are learnable in days
  • You often do not need native code for an app like feel
Open web.dev
📄 Article
✓ Link checked Free Intermediate

Why we picked it A concise checklist for making a web app feel native: cross browser, offline capable, responsive, and fast. Use it to judge whether the web can meet your product's real requirements before you commit to native. A good gut check against over building.

What makes a good Progressive Web App?

From web.dev (Google)

  • Responsiveness and speed matter more than platform
  • Offline support is achievable on the web
  • Test the web option against real needs before going native
Open web.dev
📄 Article
✓ Link checked India Free Intermediate

Why we picked it Flipkart serves exactly your users, many on 2G in smaller Indian cities, and this case study shows a fast mobile web app tripling time on site versus their old mobile experience. It is proof that a light web page can win in low bandwidth conditions where a heavy native app struggles. Useful data to counter the reflex that real products need an app.

Flipkart triples time-on-site with a Progressive Web App

From web.dev (Google)

  • 63% of users arrived over 2G, so speed mattered most
  • The fast web app tripled time on site
  • Add to home screen gave app like access with no install
Open web.dev
📄 Article
✓ Link checked Free Advanced

Why we picked it Instead of shipping the same heavy page to everyone, you can detect the connection and serve lighter images or defer non essential loads on slow links. This guide shows how using the effective connection type signal, with code. It is the practical route to one product that behaves well on both a fast and a 2G phone.

Adaptive serving based on network quality

From web.dev (Google) by Google Chrome team 15 min read

  • Detect slow-2g, 2g, 3g, or 4g and adapt what you send
  • Serve low resolution media and defer big downloads on weak links
  • React when the connection changes rather than deciding once at load
Open web.dev
🎓 Course
✓ Link checked Free Beginner

Why we picked it A free, structured course that takes you from the basics of why pages are slow through images, fonts, JavaScript, and lazy loading. It is the systematic option if the one off essays leave gaps you want filled in order. Good for a non specialist founder or a first engineer who needs a real foundation.

Learn Performance

From web.dev (Google) by Google Chrome team Multi module course

  • Images, fonts, and JavaScript are the usual weight offenders
  • Load what the first screen needs, defer the rest
  • A little structured learning beats a pile of scattered tips
Open web.dev
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