Glossary

Understand web performance &
digital experience optimization

Clear definitions of the metrics, concepts, and signals that impact site speed, search rankings, user behavior, and revenue.

Product Consideration Stage

Ecommerce CRO

The product consideration stage is when a shopper has found a product and is deciding whether to buy it. Most of it happens on the product page.

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Error Rate Monitoring

User Experience Analytics

Error rate monitoring tracks how often real visitors hit broken scripts, failed requests or missing files, so you can fix them before they cost sales.

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Long Tasks

Performance

A long task is any piece of browser work that blocks the main thread for more than 50 milliseconds, leaving clicks and taps waiting in line.

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Shopping Momentum

Behavior CRO

Shopping momentum is the pull a shopper feels to keep buying once they've started. Friction, delays and distractions are what break it.

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DNS Resolution Time

Performance

DNS resolution time is how long the browser takes to turn your domain name into a server address. It's the first delay on every new visit.

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Event loop

CWV Performance

The event loop is how the browser decides what to do next on a page. When heavy JavaScript clogs it, clicks and taps have to wait.

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Customer Lifetime Value

Revenue Ecommerce Analytics

Customer Lifetime Value (CLV) is the total revenue a customer brings in over the whole relationship, and it sets how much you can spend to win one.

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AI-assisted CRO

AI CRO Revenue

AI-assisted CRO is the use of artificial intelligence to increase the share of visitors who convert. It finds where visitors drop off, ranks fixes by revenue impact, and in its agentic form applies them on live traffic.

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Invisible users

Analytics

Learn what invisible users are and how Uxify uncovers visitors that traditional analytics tools can't track.

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