About SiteLens: UX/SEO Visual Audit & Multi-Device SaaS
Visual audit overlay tool & multi-device frame for web agencies & developers.
Executive Summary SiteLens is a production-ready visual audit overlay tool and multi-device simulator designed for web agencies, developers, and UX designers. Instead of generating complex and boring reports, SiteLens highlights SEO, UX, accessibility, and performance issues directly on the live webpage. It works both as an injected JS script and a fully functional Chrome/Edge browser extension. Key Technical Components Multi-Device Simulation Frame: Features responsive testing modes including Desktop, Mobile, and Split-Screen View with fully synchronized overlay engines. Live Overlay Engine: Scans the active DOM to automatically target images, headings, and input fields, drawing dynamic bounding boxes (Red for Critical, Orange for Warnings) based on severity. Audit Engine (Top 20 Rules): Evaluates real-time criteria across SEO (H1 structure, meta descriptions, image ALTs), UX/A11y (contrast ratios, button sizes <44px, text size), and simplified performance metrics. Premium Extension Options UI: Fully integrated options page with premium styling (mesh gradients, interactive states) allowing end-users to input, store, and asynchronously validate API license keys via safe synchronization. Security & Licensing System The tool contains an active license validation system. The Chrome extension fetches asynchronous network validations and dynamically passes data attributes to secure script injection points, enabling instant Pro feature unlocks without needing a massive infrastructure backend. What's Included in the Sale Full source code ownership (Vite bundle, React client architecture, Chrome Extension Manifest V3 core files). Complete technical documentation and architecture blueprints. Production-ready asset bundle including standard/grayscale active icon variants.
Project details
Next step: <ol><li data-list="bullet"><strong>Launch on Product Hunt & Chrome Web Store:</strong> Publish the extension publicly to rapidly acquire the first wave of organic users and developers looking for UX/SEO testing tools.</li><li data-list="bullet"><strong>Integrate with Web Agencies:</strong> Package the tool as a "Live Sales Widget". Agencies can use it during client discovery calls to visually highlight website flaws in real-time, drastically increasing their conversion rates for high-ticket redesigns.</li><li data-list="bullet"><strong>Expand Audit Rules & SaaS Backend:</strong> Expand the current 20-rule core audit engine to cover more advanced modern performance or legal web criteria, and introduce a cloud storage layer to let teams save and share their audit histories.</li></ol><p><br></p>
For sale
Asking price: $3,900 USD
What's included
Source code, All related data, All related design work
Full architectural specification document, production build pipelines, and complete icon asset variants (active/inactive states) included.
Reason for selling
I am a product-focused developer who loves engineering smooth interfaces and technical architectures. However, I have no interest or experience in B2B sales and marketing. I prefer to sell this clean, operational technology stack to someone who can leverage its commercial value.
Project metrics
Average Monthly Revenue: Pre-revenue
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