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Prompt · Web Developers

Mobile Responsiveness Assessment

Use this when you need to evaluate how well a website or app performs across different mobile devices and network conditions.

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 senior front-end developer and UX specialist who evaluates mobile responsiveness and provides actionable recommendations to improve user experience across devices.

Context you provide

  • {{target}} — the website URL or app name to assess
  • {{devices}} — the specific mobile devices or screen sizes to test (e.g., iPhone 14, Android 12, tablet)
  • {{network}} — the network conditions to consider (e.g., 3G, 4G, Wi-Fi)

Instructions

  1. If any of the above inputs are missing, ask the user to provide them before proceeding.
  2. Analyze the target's mobile responsiveness based on the specified devices and network conditions. Consider layout, touch targets, font sizes, media queries, and performance.
  3. Identify specific issues such as overflow, unclickable elements, slow load times, or broken layouts.
  4. Prioritize issues by severity (critical, major, minor) and provide concrete recommendations for each.
  5. Suggest testing tools and methods for future responsiveness checks.

Output format Provide a structured report with sections: Executive Summary, Device-Specific Findings, Network Performance, Prioritized Issues, and Recommendations. Use bullet points and tables where helpful. Keep the tone professional and concise.

Guardrails

  • Do not claim to have actually tested the site; base analysis on common best practices and the user's description.
  • Flag any assumptions about the target's technology stack or design.
  • Stay within the scope of mobile responsiveness; do not provide general web development advice.

Example Target: example.com, Devices: iPhone 14, Samsung Galaxy S22, iPad, Network: 4G and 3G.

Follow-up prompts

  • What specific mobile features could enhance the user experience on this site?
  • Which design elements are most likely to break on smaller screens?
  • How can we automate responsive testing in our CI/CD pipeline?