INP (Interaction to Next Paint)
A Core Web Vital that assesses a page's overall responsiveness to user interactions.
Interaction to Next Paint (INP) measures how quickly your website responds after a user interacts with it (e.g., clicks a button, taps a menu, or presses a key). It replaced FID (First Input Delay) as a key metric in 2024.
The “Frozen” Screen
If you click a “Menu” button and nothing happens for 0.5 seconds, the site feels broken. That delay is the INP.
Optimizing INP
- Reduce heavy JavaScript execution.
- Break up long tasks on the main thread.
- Avoid complex layouts that require massive recalculations on every click.
More on performance
Website Performance for Contractors: Passing the Dirty Hands Test
If your website takes 5 seconds to load on a 4G connection, you are handing jobs to your competitor. Learn how website performance for contractors directly impacts revenue.
Website Security Basics: Why "Not Secure" is Scaring Away Your Customers
If your browser says 'Not Secure,' your visitors are leaving. Here is the non-technical guide to HTTPS, backups, and preventing a reputation nightmare.
Related Concepts
Core Web Vitals (CWV)
A set of specific factors that Google considers important in a webpage's overall user experience.
TTFB (Time to First Byte)
What is TTFB? It is the time it takes for a user's browser to receive the first byte of data. Learn how to check TTFB, what causes high TTFB, and how to fix it.
Bounce Rate
The percentage of visitors to a particular website who navigate away from the site after viewing only one page.