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How to Analyze Core Web Vitals with Claude

Analyze Core Web Vitals using Claude and ToolRouter. Optimize LCP, CLS, and INP for better Google rankings.

Tool
SEO Analysis icon
SEO Analysis

Claude helps you understand Core Web Vitals by explaining each metric in the context of your specific page. After running the analysis, ask Claude to prioritize which issues to fix first based on their ranking impact, and get concrete code suggestions for improving LCP, CLS, and INP right in your terminal session.

Connect ToolRouter to Claude

1Go to Settings → Connectors → Add custom connector
2Enter the details below and click Add
Name
ToolRouter
URL
https://api.toolrouter.com/mcp
3Done — works on Claude chat, desktop, and mobile
No API key needed — account created automatically.All platforms →

Steps

Once connected (see setup above), use the SEO Analysis tool:

  1. Ask Claude: "Check the Core Web Vitals for mysite.com using the SEO tool"
  2. Claude runs check_vitals and reports LCP, CLS, and INP scores with pass/fail status
  3. For failing metrics, ask: "What's causing the high LCP and how can I fix it?"
  4. Claude provides specific optimization recommendations based on the data

Example Prompt

Try this with Claude using the SEO Analysis tool
Check Core Web Vitals for mysite.com/homepage. If any are failing, explain what's causing the issue and how to fix it.

Tips

  • Run vitals checks on your top 5 landing pages — they matter most for SEO
  • Ask Claude to compare vitals before and after code changes
  • Claude can suggest specific code optimizations for framework-specific issues

More Claude Guides

How to Audit Competitor Backlinks with ClaudeHow to Check Meta Tags Before Launch with ClaudeHow to Evaluate Heading Structure with ClaudeHow to Optimize Title Tags with ClaudeHow to Find Broken Internal Links with Claude

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