Google has its own client libraries for the most common programming languages (PHP, Java, Python, JavaScript) to use the API.

An offer in marketing refers to a special promotion or deal that is limited in time and designed to be irresistible to customers. It’s a persuasive tactic aimed at driving immediate action from potential buyers.

Leads – people interested in a product or service who have left their contact details to get in touch with them.

Browsing (Viewing) depth – the number of pages viewed by one site visitor in one session

The Bounce Rate metric in web analytics measures the percentage of website visitors who leave the site without taking a desired action. It’s calculated as the number of single-page sessions (where the user only views one page) divided by the total number of sessions.

UTM tags (Urchin Tracking Module tags) are snippets of code that you can add to the end of a URL to track the performance of marketing campaigns and specific links. They consist of parameters that provide information about where website traffic originates and how users find your content.

A unique visitor is a person who visited a website (at a specific URL) during a specific period of time