# Mobile website performance: research brief summary Answer this question for a business owner working with a developer: What should a small business prioritize to make its website fast and stable on a phone? Read six primary documentation sources: web.dev's pages on LCP, INP, CLS, and optimizing LCP, plus MDN's responsive images and HTTP caching guides. Write research notes mapping the recommendations to sources, then a 650-850 word article in Fieldnotes' content format. Explain performance metrics in plain language, distinguish real-user data from lab checks, and cover images, layout stability, JavaScript work, and caching. Include source links and explain limitations. Do not invent measured improvements or claim to have tested a real business website. Deliver the article and research notes for review and publication in the example blog. This is a summary of the example project brief, not a verbatim session transcript.