App ID

A unique ID that identifies your app in Wix. It’s not used in any code, but we may ask you for it if you contact us about your app – you can find it on your app’s page in the Dev Center.

App Instance

A set of properties which describe the app within a specific site. These properties include the app instance id, user id, premium flag and more.

App Instance ID

The unique identifier of the app within the website.

App Market

Wix application market where Wix users can browse all available third-party apps and add relevant apps to their site or dashboard.

App Secret

A unique string used to create your app’s signature. This signature allows your app to communicate securely with the Wix platform – you’ll need it to send requests to Wix APIs, and we’ll use it when sending data to your app.

App Settings

An Editor settings dialog that allows the user to change the look and feel of a specific app.

App upgrade

The process of transforming a free app to a Premium one. Similar to a site upgrade, an app upgrade gives the site owner access to extra content or functionality offered by the app.

Client Side

The runtime version of the app. This is what site visitors will see when visiting the user’s site (as opposed to what the user would see from within the Wix Editor).


A visible entity inside of a site and usually defined within a rectangular area.

Component ID

A unique component identifier represented as a string.


A Wix user that is invited by a site owner to edit and manage any part of the Wix site – including the editor, the dashboard, and apps.


Users can completely manage their site, including their contacts and news feed. Popular shortcuts help them handle billing, connect a domain, get a personalized email, and rename or transfer their website, among many other options.

Dev Center

Wix Developers Center. In the Dev Center, a third-party company can go through our approval process to get their product launched as an app in the Wix App Market.


Refers to the Wix HTML5 Editor. Users can build websites using the HTML5 Editor without any knowledge of programming by editing predefined templates and customizing the look and feel of their sites.


The bottom segment of a web site, shown on all pages.


The top segment of a web site, shown on all pages.


A special component that is a part of the global site structure. A page represents a state within the site and is available in the site navigation flow by having a dedicated url (hash). A page component has fixed layout parameters which cannot be changed or edited by the user.


Site view mode inside the Editor. Allows the user to view the current state of the website as the site visitors will see it and to interact with it.


An action inside the Editor which generates a URL for the site so it can be viewed by anyone.


An action inside the Editor which saves the edited site as a draft.


Layout and style (CSS) which describes a single component.

Site Owner

The Wix user who created the site – usually the business owner or the person who is managing the business via the Wix site.


A generic site usually geared to a specific topic or business type (e.g., restaurant, gym, photography, etc.). A template serves as a starting point for building a new site.


Main definition of the site’s look and feel, set of styles.


Third party app

User id

Wix user identifier

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