Analytics terms, explained simply

A plain-English A–Z glossary of the most common website analytics terms — from acquisition to UTM parameters — so you always know what you are looking at.

Analytics has its own language. This glossary defines every common term in plain English so you can read reports, have conversations with us, and understand your data with confidence.

Quick summary

This is your A–Z reference guide for analytics terms. Bookmark it and return whenever a term in your report or in GA4 has you stumped. Every definition is written in plain English — no jargon.

A

Acquisition How visitors find and arrive at your website. In GA4, the Acquisition reports show you where traffic comes from — search, social, email, and so on.

Average engagement time How long, on average, visitors spend actively engaged with your site per session. "Active" means the browser tab is open and in focus.

Average order value (AOV) The average amount spent per transaction in an online store. Calculated as: total revenue ÷ number of transactions.

Average position In Google Search Console, the average ranking your pages hold in Google search results. Position 1 is the top result.

Bounce rate The percentage of sessions where the visitor left without engaging (did not stay 10 seconds, visit a second page, or complete a conversion). In GA4, bounce rate is the inverse of engagement rate. A high bounce rate is not always bad — it depends on the page.

Branded search Search queries that include your business or brand name. Non-branded searches are general queries that do not mention your brand.

C

Channel A category of traffic source. Common channels in GA4 include Organic Search, Direct, Social, Email, Referral, and Paid Search.

Click-through rate (CTR) In Google Search Console: the percentage of search impressions that resulted in a click. Calculated as: clicks ÷ impressions × 100.

Conversion A specific action a visitor takes that you have defined as valuable — a form submission, purchase, phone call click, etc. Also called a "key event" in GA4.

Conversion rate The percentage of sessions that result in a conversion. Calculated as: conversions ÷ sessions × 100. This is one of the most important business metrics on your website.

Cookie A small text file stored in a visitor's browser. Analytics tools use cookies to recognise returning visitors and track sessions anonymously.

Core Web Vitals A set of page experience signals Google uses to evaluate how well a page performs for users — covering loading speed, interactivity, and visual stability. Relevant for both SEO and user experience.

D

Data stream In GA4, the connection between a website (or app) and a GA4 property. Most websites have one web data stream.

Dimensions In analytics reports, dimensions are the descriptive attributes of your data — page URL, traffic source, device type, country. They describe what or who you are measuring.

Direct traffic Visitors who arrived at your site by typing your URL, using a bookmark, or through a source that did not pass referral information. Can also include untracked sources like some email clients.

E

E-commerce tracking Extended GA4 tracking that captures purchase data — revenue, transactions, product views, add-to-carts, and checkout steps.

Engaged session A session where the visitor was genuinely active: stayed longer than 10 seconds, visited more than one page, or completed a conversion event.

Engagement rate The percentage of sessions that were engaged sessions. A higher engagement rate means more visitors are genuinely interested in your content.

Events In GA4, everything is recorded as an event — page views, clicks, form submissions, purchases. GA4 is "event-based" tracking rather than the session-based model of older analytics systems.

F

Filter A setting in GA4 that limits which data is included in reports. For example, a filter that excludes your own IP address so your visits do not inflate your data.

G

GA4 Google Analytics 4 — the current version of Google's free website analytics tool. Replaced Universal Analytics in 2023.

Goal The old term (from Universal Analytics) for what GA4 now calls "key events" or "conversions." If someone refers to "goals," they mean conversions.

Google Search Console (GSC) A free Google tool that shows how your website performs in Google search results — impressions, clicks, rankings, and technical health.

Google Tag Manager (GTM) A free Google tool that manages all tracking code (tags) on your website from one central place, without requiring direct edits to your site's code.

I

Impression In Google Search Console: one instance of your page appearing in Google search results, whether or not the user clicked.

Indexing The process by which Google discovers and adds your pages to its search results database. A page that is "indexed" can appear in Google search.

K

Key event GA4's term for a conversion event — an important action you have flagged as a business goal. Examples: form_submit, purchase, phone_click.

L

Landing page The first page a visitor sees when they arrive on your site. This could be your homepage, a blog post, a service page, or any other page — it depends how they found you.

M

Metrics In analytics reports, metrics are the numbers — sessions, conversions, revenue, engagement rate. They quantify what happened.

N

New users Visitors arriving at your site for the first time on a particular device and browser.

O

Organic search Traffic from people who clicked a non-paid result in a search engine (e.g. Google). Compare with "Paid Search."

P

Pageview / View One instance of a page being loaded. In GA4, this is called a "page_view" event.

Paid search Traffic from people who clicked a paid advertisement in search results (e.g. Google Ads).

Property In GA4, a property is your website (or app). It has its own tracking ID and data storage.

R

Realtime report A GA4 report showing activity happening on your site in the last 30 minutes. Useful for testing tracking or monitoring a campaign launch.

Referral Traffic from visitors who clicked a link to your site on another website.

Returning users Visitors who have been to your site before (on the same device and browser).

S

Session A single visit to your website. Starts when a visitor arrives and ends when they leave or are inactive for 30 minutes.

Source / medium In GA4, the traffic source and medium together identify where visitors came from. For example: "google / organic" means they found you via organic Google search.

T

Tag A piece of code that runs on your website and sends data to a third-party tool (GA4, Facebook Pixel, etc.). Managed via Google Tag Manager.

Traffic The general term for website visitors and visits.

Trigger In Google Tag Manager, a rule that determines when a tag fires. For example: "fire the GA4 tag on every page."

If you're stuck, email support@chykalophia.com and we'll help. Include your website address and a screenshot if you can.

Analytics terms, explained simply

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