What is the definition of first input delay?

[Vikrant Ahuja]

Explain its meaning and importance from SEO point of view.

[Samantha]

First Input Delay (FID), a Core Web Vitals metric established by Google, First input delay (FID) gauges how long it takes a user to engage with your website for the first time. (clicking a link, tapping a button, or using a unique JavaScript control).
Given that it requires user input, this metric is challenging to quantify, and FDI is an important point to consider for a website as it impacts a site's organic ranking.

[akshay]

First Input Delay is crucial to monitor and enhance user experience on your website.
Web performance and user experience statistics called First Input Delay. FID measures how long it takes for a visitor to interact with a website before the browser evaluates that input. This is also known as input latency.
The fact that Google considers FID a ranking element is crucial information to be aware of. It's one of the fundamental online metrics that Google employs to assess the level of the user experience on your site and, consequently, its page rank.

[Ritu]

First Input Delay (FID) is a performance metric used to measure the time delay between the moment when a user interacts with a web page by clicking a button or a link, and the moment when the browser responds to that interaction by starting to process the event. It is a user-centric metric that helps to assess the interactivity of a web page and its responsiveness to user input. A slow FID can negatively impact user experience, while a fast FID can improve user engagement and satisfaction. FID is typically measured using tools such as Lighthouse, WebPageTest, or other web performance measurement tools.

[Keeran]

First Input Delay (FID) measures the time it takes for a web page to respond to the first user interaction, such as a click or tap on a button or link. It reflects how quickly a website is able to become interactive and is important for user experience.