Performance Insight

Extension Developer Tools6 users

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Overview

Analyze and visualize your website’s Core Web Vitals (LCP, INP, CLS, FCP, TTFB) in real-time

Performance Insight helps developers debug and visualize performance metrics directly inside the page. It measures Core Web Vitals and shows interactive overlays for layout shifts, input delays, and paint timings. ✅ Real-time Web Vitals tracking (CLS, LCP, INP, FCP, TTFB) ✅ Overlay visualization for layout shifts and slow inputs ✅ Works on any website you open ✅ No data collection — all analysis runs locally Ideal for: Front-end engineers, performance auditors, UX developers, and QA testers. Credits: Meter icons created by Freepik - Flaticon (https://www.flaticon.com/free-icons/meter)

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Details

Version
1.0.0
Updated
November 16, 2025
Flag concern
Offered by
Rohit Gupta
Size
85.15KiB
Languages
English
Developer
Email
mailrohitgupta022@gmail.com
Non-trader
This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Performance Insight has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

Performance Insight handles the following:

User activity

This developer declares that your data is

Not being sold to third parties, outside of the approved use cases
Not being used or transferred for purposes that are unrelated to the item's core functionality
Not being used or transferred to determine creditworthiness or for lending purposes

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