Digital marketing term
Load Time
How long a page takes to become usable in the browser, measured in milliseconds. A slow first paint raises bounce and wastes both ad clicks and organic visits.
Detailed explanation
Lab tests give a repeatable room; field data shows real devices and networks. LCP, INP, and CLS are the modern stand-ins—there is no single fully loaded instant.
Heavy images, blocking JavaScript, slow hosting, and third-party tags inflate the wait. Saying it feels fast on a laptop with cache disabled is not field reality.
Decide with Search Console Core Web Vitals, real-user monitoring, and funnel drop-off. Getting LCP near 2.5s on a content site is usually images and server response before a theme swap.
Frequently asked questions
- If the lab score is green, are you done?
- No. Real users sit on slow networks. If field data disagrees, trust the field.
- What do you cut first to speed a page up?
- Hero image weight, blocking third-party scripts, and slow TTFB. Measure those before changing the theme.
Related terms
Internal links for the topic cluster — read these concepts together.
- Core Web VitalsCore Web Vitals is the collective name for three core, user-experience-focused performance metrics Google uses to measure a web page's loading speed, interactivity readiness, and visual stability.
- Bounce RateBounce Rate is the percentage of visitors who view only a single page and leave without further interaction.
- User ExperienceThe whole journey a person feels on the site: speed, clarity, trust, and finishing the job. The interface is the visible layer; copy, performance, and support sit inside the experience too.
- HostingThe service that keeps a site’s files, database, and mail on a machine reachable from the internet. A domain does nothing until DNS points it at that server.
- JavaScriptThe language that makes pages interactive in the browser: menus, form checks, tag managers, and most modern UI. HTML structures the page, CSS styles it, and this layer handles behavior.
- On-Page SEOThe ranking and click work you do in a page’s own code and copy: title, structure, internal links, speed, and intent match. A vote from another site is off-page, not this.