Pre-Launch Performance Audit
Run a full Lighthouse audit before launching your site to catch performance, accessibility, and SEO issues.
Diagnose Slow Page Load Times
Identify the root causes of slow page loads using Lighthouse performance diagnostics and metrics.
ToolA slow website costs you visitors, conversions, and search rankings. Every additional second of load time increases bounce rates by roughly 32%. But "the page is slow" is not actionable -- you need to know exactly what is making it slow.
Lighthouse breaks down page load into granular metrics: First Contentful Paint, Largest Contentful Paint, Time to Interactive, Total Blocking Time, and Cumulative Layout Shift. Each metric points to a different type of bottleneck -- render-blocking CSS, unoptimized images, heavy JavaScript bundles, or layout instability.
ToolRouter's audit_url skill runs this full diagnostic and identifies the specific resources, scripts, and rendering patterns causing slowdowns. Instead of guessing, you get a precise diagnosis with recommendations ordered by estimated savings in milliseconds.
Agent Guides
Claude
- Connect ToolRouter: claude mcp add toolrouter -- npx -y toolrouter-mcp
- Ask Claude: "Run a Lighthouse performance audit on mysite.com/slow-page"
- Claude identifies the bottlenecks causing slow load times with timing breakdowns
ChatGPT
- Configure ToolRouter in ChatGPT
- Ask: "Why is mysite.com/products loading slowly? Run a Lighthouse audit."
- ChatGPT runs the audit and explains each bottleneck in plain language
Copilot
- Add ToolRouter to Copilot MCP config
- Ask: "Run a Lighthouse performance audit on mysite.com/slow-page"
- Review the performance diagnostics inline
OpenClaw
- Connect ToolRouter: openclaw mcp add toolrouter -- npx -y toolrouter-mcp
- Ask: "Run a Lighthouse audit on mysite.com/slow-page and diagnose the slowdown"
- OpenClaw identifies the specific bottlenecks with timing data
Related Use Cases
Check Accessibility Compliance
Audit your pages for WCAG accessibility issues using Lighthouse to ensure your site works for all users.
Measure Time to Interactive
Measure how long it takes for your page to become fully interactive and identify what delays user input.
Identify Render-Blocking Resources
Find CSS and JavaScript files that block page rendering and delay the first paint for users.