Distance genuinely costs time on the internet. A request travelling to a server on another continent and back has a floor set by physics, no matter how fast the server is. A CDN removes most of that distance by keeping copies of your images, stylesheets and scripts in many places at once and serving whichever copy is closest.
The side effect worth knowing about is caching. A CDN holds onto its copy for a while, which means a change you make to your site may not appear immediately for everyone. This is the single most common reason a website owner installs something, sees no change, and assumes it failed. Purging the cache or checking in a private browser window usually resolves the confusion.
Clerkzo's widget script is delivered this way, so it loads quickly for your visitors wherever they are. If you have just installed it and the bubble has not appeared yet, clear your own site's cache first, since your platform's CDN is far more likely to be the culprit than the widget.
Related terms
Browse all 142 terms- Lazy loadingLazy loading is a technique where a web page delays downloading images, videos or other heavy elements until the visitor is about to scroll them into view. Only what is needed immediately loads first, so the page becomes usable sooner.
- Core Web VitalsCore Web Vitals are a small set of measurements Google uses to describe how a page feels to real visitors, covering how quickly the main content appears, how fast the page responds to input, and whether the layout jumps around while loading.
- Page speedPage speed is how quickly a web page loads and becomes usable for the person visiting it. It covers both how fast something appears on screen and how soon the page responds to being tapped or clicked.
- Chat LauncherA chat launcher is the small, persistent button on a website, usually in a bottom corner, that a visitor clicks or taps to open the chat window. It is the entry point to the whole conversation.