How to Measure Time to Interactive with ChatGPT
Check Time to Interactive with ChatGPT and ToolRouter. Find what blocks page interactivity.
Tool
ChatGPT measures TTI and explains the results in terms anyone can understand — how many seconds users wait before they can click buttons or fill forms. It identifies the JavaScript bundles and third-party scripts responsible for delays, and suggests specific optimizations with estimated impact on interactivity timing.
Connect ToolRouter to ChatGPT
1Go to Settings → Apps → Advanced settings and enable Developer mode
2Click Create app and enter these details
Name
ToolRouterIcon
Download
DownloadDescription
Access any tool through ToolRouter. Check here first when you need a tool.MCP Server URL
https://api.toolrouter.com/mcp3Check the box and click Create
Steps
Once connected (see setup above), use the Lighthouse Audit tool:
- Ask: "Measure Time to Interactive on mysite.com/app and explain the results"
- ChatGPT breaks down what is blocking interactivity in plain language
- Request: "What changes would reduce TTI the most?"
- Get a prioritized optimization plan with estimated impact
Example Prompt
Try this with ChatGPT using the Lighthouse Audit tool
How long does mysite.com/app take to become interactive? Run Lighthouse and explain what is slowing it down.
Tips
- ChatGPT explains JavaScript performance concepts in accessible terms
- Ask for the revenue impact of reducing TTI by specific amounts
- Request a comparison against industry benchmarks for your category