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Contentstack glossary

Here, you will find definitions of terms related to headless CMS technology and links to additional resources.

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API first

API first is an approach where the development of an application or system starts by designing and implementing the application programming interfaces (APIs) first, before building the user interface or other components. By prioritizing the API design, developers can ensure that the core functionality and data access of the application are well-defined and optimized for integration with other systems or platforms. API first development promotes modularity, reusability and interoperability.

API first companies

API-first companies are organizations that prioritize the development and design of their application programming interfaces (APIs) as a core aspect of their business strategy. These companies adopt an API-centric approach by placing APIs at the forefront of their product or service offerings. They consider APIs not only as a means to connect their own systems but also as a way to enable integration with third-party developers, partners or clients.

Bootstrap framework

The Bootstrap Framework is an open-source front-end development framework created by Twitter. It offers a comprehensive set of pre-designed templates, styles, and interactive components that streamline building responsive and visually appealing websites and web applications. Bootstrap enables developers to achieve consistency in design while enhancing the user experience across various devices.

CMS e-commerce

CMS e-commerce refers to integrating a content management system (CMS) with an e-commerce platform. It combines the capabilities of a CMS, which manages and delivers content, with e-commerce functionalities such as product catalog management, shopping cart, and payment processing. CMS e-commerce solutions enable businesses to create and manage content-rich websites while seamlessly incorporating e-commerce features to sell products or services online.

Cloud content management

Cloud content management refers to digital content storage, management, and delivery through cloud-based platforms. It encompasses the functionalities of traditional content management systems, such as document management, collaboration, version control, and access control, but with the added benefits of scalability, accessibility, and ease of integration. Cloud content management enables organizations to store and manage content securely in the cloud, making it accessible from anywhere and facilitating seamless collaboration.


Composable refers to the ability of a system or component to be easily combined or assembled with other systems or components to create new and customized functionalities. It implies modularity and flexibility in building complex systems.

Composable applications

Composable applications are software applications or systems that are built using a composable architecture. They are designed to be flexible and modular, allowing developers to combine and integrate different components to create customized solutions easily.

Composable banking

Composable banking refers to a banking system that is built using a composable architecture. It allows banks to assemble different banking services, such as payments, loans, and account management, into customized offerings that can be easily integrated with other systems or platforms.

Composable cloud

Composable cloud refers to a cloud computing infrastructure that is designed with a composable architecture. It enables organizations to flexibly allocate and integrate computing resources based on their specific needs, allowing for efficient and scalable resource management.

Composable commerce

Composable commerce refers to an approach where e-commerce systems are built by composing modular and independent services or microservices. Instead of relying on monolithic platforms, composable commerce enables businesses to select and combine specialized services, such as payment gateways, product catalogs, inventory management or marketing tools, to create a customized e-commerce solution. This approach provides flexibility, scalability and the ability to adapt to changing business needs.

Composable commerce architecture

Composable commerce architecture refers to the architectural approach in designing e-commerce systems that emphasizes modularity and flexibility. It enables businesses to build and integrate different commerce capabilities, such as catalog management, checkout, and inventory management, in a composable manner.

Composable commerce experiences

Composable commerce experiences refer to an approach in e-commerce that emphasizes the ability to build and customize commerce experiences by composing different services or components. It enables businesses to create flexible and personalized customer experiences by combining and integrating various commerce functionalities.

Composable customer data platform (CDP)

Composable CDP refers to a Customer Data Platform (CDP) that is designed with a composable architecture. It enables businesses to easily integrate and customize different components of the CDP according to their specific needs.

Composable e-commerce

Composable ecommerce refers to an approach in e-commerce that focuses on building flexible and customizable commerce systems by combining and integrating various e-commerce functionalities. It allows businesses to create tailored customer commerce experiences by composing different services or components.

Composable technology

Composable technology refers to technological solutions or systems that are designed with a composable architecture. It enables the composition and integration of different technologies or components to create customized solutions or applications.

Content strategy

Content strategy is a strategic approach to managing and delivering digital content. It involves planning, creating, organizing, and distributing content that aligns with an organization's objectives and resonates with its target audience. A well-crafted content strategy ensures the availability of valuable and relevant content, enhances brand identity and supports business goals.


Content+cloud refers to an integrated approach where content management systems (CMS) or digital asset management (DAM) systems are combined with cloud computing technologies and services. It involves leveraging cloud-based infrastructure, storage and computing power to enable efficient content management, delivery and scalability. Content+cloud solutions provide organizations with the benefits of cloud computing, such as accessibility, scalability and cost-efficiency, while managing and delivering their content effectively.

Database management

Database management (DBM) encompasses systematically administrating and maintaining data within a database system. DBM includes data storage, retrieval, security, backup, and performance optimization tasks. Effective database management ensures data accuracy, accessibility, and reliability, supporting efficient business processes and decision-making.

Digital asset management

Digital Asset Management organizes, stores, and distributes digital assets such as images, videos, documents, and audio files in a centralized system. DAM systems provide tools for tagging, metadata management, versioning, and searching, allowing users to locate and retrieve assets efficiently when needed. DAM helps streamline content creation, collaboration, and distribution processes, ensuring brand consistency and enhancing digital asset reuse.

Digital asset management systems

A digital asset management (DAM) system is a software solution that stores, organizes, and distributes digital assets. It provides a centralized repository where users can upload, manage metadata, search, and retrieve assets efficiently. DAM systems often include features such as version control, rights management, workflow automation, and analytics, allowing organizations to optimize their digital asset workflows, maintain brand consistency, and enhance content distribution.

Email marketing

Email marketing is a digital marketing strategy that sends targeted and personalized emails to subscribers or potential customers. Its primary aims include building and nurturing customer relationships, promoting products or services, and driving conversions. Successful email marketing relies on thoughtful planning, audience segmentation, engaging content, and performance analysis.

Extensible markup language (XML)

Extensible Markup Language (XML) is a markup language used to structure and organize data in a readable and machine-readable format. It facilitates the exchange of information between different systems and applications, making it a foundation for data interchange on the web.

Front-end development

Front-end development, often called client-side development, creates the user interface and interactivity of websites and web applications. Front-end developers use technologies like HTML, CSS, and JavaScript to design and implement the visual elements and user experience that users directly interact with in their web browsers.

GDPR compliance

GDPR Compliance refers to adhering to the regulations outlined in the General Data Protection Regulation (GDPR), a European Union law designed to protect individuals' privacy and data rights. Organizations that handle the personal data of EU citizens must comply with GDPR rules, including obtaining consent, securing data, ensuring transparency, and allowing individuals to have control over their data.

Headless commerce

Headless commerce refers to an architecture where the front-end presentation layer (the "head") and the back-end e-commerce functionality (the "body") are decoupled. In this approach, the e-commerce platform's back end serves as a headless content management system (CMS) or an e-commerce engine, while the front-end presentation layer is built separately and can be delivered through various channels such as websites, mobile apps, IoT devices or voice assistants. Headless commerce enables flexibility, scalability and the ability to deliver consistent experiences across multiple touchpoints.

Headless commerce architecture

Headless commerce architecture is an approach where the front-end presentation layer and the back-end e-commerce functionality are decoupled. This architecture allows for greater flexibility and scalability by separating the user interface from the e-commerce engine. In a headless commerce architecture, the e-commerce engine serves as an API-driven back end, providing data and functionalities to multiple front-end touchpoints such as websites, mobile apps, or IoT devices.

Hyper text markup language 5 (HTML 5)

HTML5, short for HyperText Markup Language 5, is the latest version of the standard markup language used for creating content on the World Wide Web. It introduces modern features, semantic elements, and multimedia capabilities, making it well-suited for developing contemporary and interactive web applications.

Ideal customer profile

The Ideal Customer Profile (ICP) is a detailed representation of the characteristics and attributes that define the most suitable and valuable customers for a business. It encompasses demographic, psychographic, and behavioral traits that help guide marketing and sales efforts toward attracting and engaging the right audience.

JavaScript object notation (JSON)

JSON, or JavaScript Object Notation, is a lightweight data interchange format commonly used for structuring and transmitting data between a server and a web application or between different components of an application. Its human-readable format and simplicity make it a popular choice for data exchange in web development and other programming contexts.

Landing page optimization

Landing page optimization involves refining a specific web page, known as a landing page, to maximize its effectiveness in converting visitors into customers or leads. This optimization encompasses design enhancements, content improvements, call-to-action optimization, and user experience enhancements, all aimed at increasing conversion rates and achieving marketing goals.

Mobile first

Mobile First is a design and development approach that prioritizes designing and optimizing a website or application's user experience for mobile devices before addressing the desktop version. This strategy ensures that the digital product is intuitive, fast, and user-friendly on smaller screens, catering to the growing mobile user base.

No code CMS

A No Code CMS (Content Management System) is a platform that enables users to create and manage digital content without requiring coding skills. It provides intuitive interfaces, drag-and-drop elements, and pre-built templates, allowing non-technical users to design, edit, and publish content efficiently.

Open source

Open Source refers to software or platforms whose source code is publicly available for anyone to view, use, modify, and distribute. This collaborative approach fosters community-driven development, transparency, and flexibility, enabling developers to contribute to the improvement and customization of the software.

Page speed optimization

Page Speed Optimization improves the loading speed and performance of a website's web pages. It involves optimizing various elements such as images, scripts, and server responses to ensure fast loading times, enhance user experience, and positively impact search engine rankings.

Responsive web design

Responsive Web Design (RWD) is a design approach to create websites that automatically adapt and respond to different screen sizes and devices. Developing RWD ensures that the content and layout remain visually appealing and functional on various devices, from desktops to tablets and smartphones.

Search engine marketing (SEM)

Search Engine Marketing (SEM) refers to promoting websites and content through paid advertising on search engines. SEM includes Pay-Per-Click (PPC) ads and strategies to increase a website's visibility on search engine results pages, driving targeted traffic and conversions.

User experience (UX) design

User Experience (UX) Design involves designing digital interfaces, products, or services considering the user's needs and preferences. It focuses on creating intuitive, efficient, and enjoyable interactions, resulting in positive user experiences and increased customer satisfaction.

Web personalization

Web personalization refers to the dynamic process of tailoring online content, user experiences, and website interactions to cater specifically to each visitor's individual preferences, behaviors, and needs. This customization involves leveraging data analytics, user profiling, and advanced algorithms to deliver relevant and engaging content, product recommendations, layout adjustments, and other website elements that enhance user satisfaction, increase engagement, and ultimately drive desired outcomes such as conversions, user retention, and a more personalized online journey.


In web design and CSS (Cascading Style Sheets), Z-Index refers to the stacking order of elements on a web page. It determines which element appears on top of or behind other elements. A higher Z-index value places an element above those with lower values, affecting the visual hierarchy and layout of the page.