GitHub Copilot Prompt to Optimize a Landing Page

GitHub Copilot, the AI-powered coding assistant from GitHub, is not limited to writing functions or unit tests. Used intelligently, it becomes a formidable ally for optimizing landing pages—those crucial pages that turn visitors into customers. Whether you're working on semantic HTML structure, accessibility, loading performance, or calls to action, Copilot can analyze your existing code and propose targeted improvements. The stakes are high: a poorly optimized landing page can slash conversion rates by 50% or more. By formulating precise prompts in your code editor, you can ask Copilot to audit your page from multiple angles—technical SEO, rendering speed, visual hierarchy, responsive design—and directly implement fixes. This approach saves hours of manual work while applying modern web best practices. Here is an optimized prompt to get the most out of GitHub Copilot for landing page optimization, with variants adapted to each skill level.

The prompt

GitHub Copilot

Analyze this landing page and propose concrete optimizations on the following axes: 1) Performance: identify blocking resources, unoptimized images, unused CSS and propose lazy loading, code-splitting, and asset compression. 2) Technical SEO: check meta tags (title, description, og:), heading structure (unique h1, h2-h3 hierarchy), image alt attributes, schema markup, and internal linking. 3) Conversion: analyze CTAs (contrast, positioning, wording), visual hierarchy, form (number of fields, labels, validation), and propose improvements based on persuasion principles. 4) Accessibility: check WCAG AA contrasts, ARIA roles, keyboard navigation, and HTML5 semantics. 5) Responsive: identify missing breakpoints and elements that break on mobile. For each point, generate directly applicable corrected code with a comment explaining the expected gain.

Personalize this prompt with Léa

Answer 3 questions and Léa tailors the prompt to your situation.

Why it works

This prompt works because it structures the request into five distinct analysis axes, which prevents Copilot from producing generic suggestions and forces it to methodically audit each critical aspect. The request for directly applicable code with explanatory comments leverages Copilot's ability to generate contextual code based on the file open in the editor. Finally, the explicit mention of standards (WCAG AA, HTML5 semantics) anchors suggestions in measurable benchmarks rather than subjective opinions.

Expected result

Copilot generates a structured audit of your landing page with, for each axis, ready-to-integrate code blocks: corrected meta tags, images with lazy loading and alt attributes, restructured CTAs with better contrast, added ARIA attributes, and completed media queries. You also get inline comments explaining the impact of each change on Core Web Vitals, conversion rate, or accessibility score. The result is an actionable list of 10 to 20 improvements ranked by impact, directly copyable into your source code.

Variants by level

FAQ

Can GitHub Copilot really analyze a complete landing page or only code fragments?

GitHub Copilot works at the level of the file open in your editor and its immediate context (open files, imports). For a single-file HTML landing page or a unique React/Vue component, it analyzes the entire code. For multi-file pages, open key files (layout, hero component, styles) in adjacent tabs so Copilot has the full context. With Copilot Chat, you can also use the @workspace command to reference the entire project and get a broader analysis.

What are Copilot's limitations for landing page optimization compared to tools like Lighthouse?

Copilot excels at generating corrective code and contextual suggestions, but it does not measure actual performance like Lighthouse does (which runs the page in a browser and calculates Core Web Vitals). The ideal approach is complementary: first run a Lighthouse or PageSpeed Insights audit to identify metrics to improve, then use the Copilot prompt with that data to generate code fixes. Copilot also cannot visually test responsive rendering—use browser DevTools to validate changes.

How can I adapt this prompt if my landing page uses a framework like Next.js or Nuxt instead of static HTML?

Specify the framework in your prompt by adding technical context at the start: for example, 'This landing page is a Next.js 14 component with App Router and Tailwind CSS'. Copilot will then tailor its suggestions to the framework's conventions—using Next.js Image component for automatic image optimization, metadata via the generateMetadata() API, Server vs Client components for code-splitting, and Tailwind classes for responsive. The more specific you are about your tech stack, the more directly applicable Copilot's suggestions will be without adaptation.

How to use this prompt

Copy the prompt with the button above.
Paste it into ChatGPT, Claude or your favorite AI assistant.
Replace the bracketed variables with your details, then refine the result.

About Prompt Guide

Prompt Guide is a free library of 2500+ ready-to-use prompts for ChatGPT, Claude and other AIs, with guides to learn prompting and tools to build and optimize your own prompts.

Prompt library Learn prompting Prompt builder Prompt optimizer

Already have a prompt?

Paste it into the Optimizer, AI improves it in 5 seconds: role, context, format. Free, no signup.

Open the Optimizer

More prompts to explore

Midjourney Prompt for Analyzing a Contract

Midjourney, as an AI image generation tool, cannot analyze the textual content of a contract in the legal sense. However, it excels at creating impactful visuals to illustrate complex contractual concepts: negotiation process infographics, visual representations of key clauses, decision flow diagrams, or professional illustrations for legal presentations. These visuals transform dry documents into engaging communication materials, making them easier to understand for non-legal audiences. Whether you are a lawyer preparing a client presentation, a legal officer training your teams, or an entrepreneur looking to simplify your terms and conditions, Midjourney allows you to create professional-quality visual representations. The following prompts are designed to generate clear, structured illustrations that are appropriate for the legal and contractual context, respecting the visual codes of the sector: sobriety, clarity, and professionalism. Discover how to turn contract analysis into a visual experience with optimized prompts for Midjourney.

Midjourney Prompt for Creating E2E Tests

Midjourney, renowned for its power in AI image generation, can play an unexpected but strategic role in the creation of E2E tests.

Midjourney Prompt for Organizing a Project

Midjourney is primarily known for generating artistic images, but it proves to be a powerful tool for creating impactful project management visuals.

Midjourney Prompt for Planning a Product Launch

Midjourney has become an essential tool for marketing teams and entrepreneurs who want to bring their product launch vision to life before

Midjourney Prompt for Writing a Newsletter

Midjourney has become an essential tool for creating impactful visuals that accompany your newsletters. In a context where inboxes are saturated, the header image or illustrations embedded in your newsletter make all the difference between an email that's opened and one that's ignored. With Midjourney, you can generate custom visuals that reinforce your editorial message, illustrate your sections, and create a consistent visual identity from one edition to the next. Whether you produce a weekly tech newsletter, a monthly digest for your community, or a corporate newsletter, Midjourney lets you produce professional-quality images without hiring a graphic designer. The prompts presented on this page are specifically designed to generate visuals suitable for newsletter format: horizontal banners, section illustrations, thematic icons, and mood images. Each prompt includes essential technical parameters such as the aspect ratio suited for emails and a visual style consistent with email marketing standards. Discover how to transform your newsletters into memorable visual experiences.

Midjourney Prompt to Optimize SEO

Midjourney has become an essential tool for SEO professionals who want to enrich their visual content without blowing their budget. Search engines increasingly value pages that feature original and relevant images, at the expense of overused generic stock photos. By generating unique visuals with Midjourney, you improve time on page, reduce bounce rate, and increase your chances of appearing in Google Images — a source of organic traffic often overlooked. SEO optimization through images involves creating contextual visuals that reinforce content understanding for users and crawlers. A well-crafted Midjourney prompt allows you to produce blog illustrations, stylized infographics, featured images, and explanatory diagrams that capture attention in SERPs. By combining precise descriptions, web-friendly format parameters, and visual consistency with your brand guidelines, you turn each image into a natural search engine optimization lever. This guide provides optimized prompts to create visuals that directly serve your SEO strategy.