IntersectionObserver
This is a browser API that efficiently detects when an element enters or leaves the screen's viewport. It is one of the tools Speed Kit uses in its algorithm to accurately measure the Largest Contentful Paint (LCP) for Soft Navigations on complex pages, without harming the page's own performance.
Related web performance terms
- IP Whitelisting
IP whitelisting is a security practice where a server or firewall is configured to grant access only to a specific list of trusted IP addresses.
- Image Optimization
This is an automated process Speed Kit uses to make image files as small as possible without sacrificing visual quality, which is crucial for fast loading times.
- Instant Loading
Instant Loading is a Speed Kit feature that caches the main HTML document and serves it instantly from the cache on subsequent visits, eliminating cold start delays.
- Interaction to Next Paint (INP)
Interaction to Next Paint (INP) is a Core Web Vital metric that measures responsiveness. INP measures the time from when a user interacts with the page (like a click or keypress) until the next vis…