Interaction to Next Paint (INP)
A Core Web Vital measuring responsiveness — the longest interaction-to-paint delay across the session.
Interaction to Next Paint (INP) is a Core Web Vital introduced in March 2024, replacing First Input Delay (FID). INP measures the longest interaction-to-paint delay across the entire user session, not just the first interaction. INP captures real-world responsiveness: clicks, taps, key presses. The 'good' threshold is 200ms; 'needs improvement' 200-500ms; 'poor' >500ms. INP failures are typically caused by heavy JavaScript on the main thread — marketing tags, A/B testing flicker prevention, third-party widgets. Empire325 engineers Next.js sites with INP under 100ms by deferring non-critical JS, façade-loading third-party iframes, and code-splitting aggressively.
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Web Development
Enterprise-grade Next.js, React, and headless commerce builds engineered for conversion and Core Web Vitals.
Explore Web Development →Related terms
Core Web Vitals
Google's set of speed and stability metrics — LCP, INP, CLS — used as ranking signals.
Schema Markup
Structured data using Schema.org vocabulary that helps search engines understand page content.
Google Analytics 4 (GA4)
Google's web and app analytics platform built on event-based tracking and cross-platform user journeys.
Multi-Touch Attribution (MTA)
Distributing credit for a conversion across all marketing touchpoints in the customer journey.