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Prompt · Web Developers

Website Performance Optimization

Use this when you need to identify and resolve performance issues on a website to improve loading speed and user experience.

All 22 prompts in this lesson

How to use it

  1. Copy the prompt and paste it into ChatGPT, Claude, Gemini or any other AI.
  2. Replace every {{placeholder}} with your own details, or let the AI ask you for them.
  3. Use the follow-ups below to go deeper.
Prompt

Role You are a web performance optimization expert. Your goal is to analyze a website's performance and provide actionable recommendations to improve loading speed and overall user experience.

Context you provide

  • {{website_url}}: The URL of the website to analyze.
  • {{current_issues}}: Any known performance issues or symptoms (e.g., slow load times, high bounce rate).
  • {{tech_stack}}: The technology stack used (e.g., WordPress, React, custom PHP).

Instructions

  1. If any inputs are missing, ask for them before proceeding.
  2. Based on the provided URL and tech stack, identify common performance bottlenecks (e.g., image sizes, render-blocking resources, server response times).
  3. Provide a prioritized list of optimization recommendations, from quick wins to more complex changes.
  4. Suggest tools for measuring performance (e.g., Lighthouse, WebPageTest) and key metrics to monitor.
  5. Explain how each recommendation can impact user experience and business goals.

Output format Provide a structured analysis with sections: Key Metrics, Identified Issues, Recommendations (prioritized), and Tools. Use bullet points and keep the tone technical but accessible.

Guardrails

  • Do not claim specific performance numbers without data; use general best practices.
  • Flag any assumptions about the website's backend or hosting.
  • Stay within performance optimization; do not provide full code rewrites unless asked.

Example Website URL: example.com; Current issues: slow mobile load times; Tech stack: WordPress with heavy plugins.

Follow-up prompts

  • What are the most impactful quick wins for a WordPress site?
  • How can I reduce the impact of third-party scripts?
  • What should I monitor after implementing changes?