Glossary A–Z

Terms starting with U

9 terms. Search all 545 terms →

Web Design

UI

UI is the visual and interactive surface a person uses to operate a website or app. Polished, consistent UI builds trust instantly and makes a site easy to act.Read definition →
SEO

URL Slug

A URL slug is the readable part of a web address that identifies a page. Clean, keyword-rich slugs help users and search engines grasp a page at a glance.Read definition →
Analytics

UTM Parameter

A UTM parameter is a tag added to a URL to track where a click came from. Consistent tagging proves which campaigns actually drive your traffic and sales.Read definition →
Web Design

UX

UX is the overall experience a person has using a website, app, or product. UX directly drives conversions and loyalty. A confusing site loses sales no amount.Read definition →
Analytics

Unique Visitor

A unique visitor is one person who visits your site in a set period, counted once. It reveals the true size of your audience, not just repeat activity.Read definition →
Content & Email

Unsubscribe Rate

Unsubscribe rate is the percentage of email recipients who opt out after a send. A rising rate is an early warning about content, frequency, or targeting.Read definition →
Web Development

Uptime

Uptime is the percentage of time a website or server stays online and available. High uptime protects revenue, trust, and consistent search crawling.Read definition →
Web Design

User Flow

A user flow is the path a person takes to complete a task on a site. Mapping user flows removes friction and lifts conversions along key journeys.Read definition →
Social Media

User-Generated Content

User-generated content is brand-related content created by customers, not the brand. UGC builds trust and provides authentic, low-cost social proof.Read definition →