Web Standards: Definition, Examples, and Who Creates Them

What are Web Standards?

Web standards are the rules and specifications that we use to build and design high-performance websites. They define how web pages and websites behave, look, and function on different browsers and platforms. These standards are defined by the W3C (World Wide Web Consortium). They are essential for web design, web development, and website projects of any scale. These website standards apply to everything from a small landing page to a complex web application. Using web standards, web developers and web designers can build and design high-performance websites.

Web standards include technologies such as HTML, CSS, and JavaScript. They also define image formats and accessibility frameworks, such as WAI-ARIA and WCAG. These web standards promote interoperability, security, and accessibility. They make sure that your contents and interfaces work reliably on all devices.

Who creates Web Standards?

They are developed by international organizations that work together with browser vendors, developers, and researchers.

W3C (World Wide Web Consortium)

Founded by Tim Berners-Lee in 1994, the W3C is the main body behind core web standards such as HTML, CSS, and WCAG. It publishes specifications that browsers and developers follow.

WHATWG (Web Hypertext Application Technology Working Group)

WHATWG maintains the HTML Living Standard and the DOM specification. It was founded by engineers from Apple, Mozilla, and Opera, and now works closely with the W3C.

IETF (Internet Engineering Task Force)

The IETF defines the protocols that the web runs on, including HTTP, HTTPS, and TCP/IP. Without IETF standards, browsers and servers could not talk to each other.

ECMA International

ECMA publishes the ECMAScript standard, which is the official specification for JavaScript. Every JavaScript engine in every browser implements it.

ISO (International Organization for Standardization)

ISO formalizes some web-related standards at the international level, including WCAG 2.0, which is also published as ISO/IEC 40500.

Web Standards applications

Cross-Browser Compatibility

W3C standards specify how web pages should be rendered on different browsers. This way,  your designs look and behave as intended on all browsers.

Accessibility

Web Standards, such as WCAG and WAI-ARIA, help web developers and designers in creating websites that support keyboard navigation. This makes websites more accessible.

Easier Application Development 

When developers can rely on web standards, such as clean markup (HTML), CSS, and better interactivity (JavaScript), making and maintaining websites becomes easier.

Better Apps

When developers use web standards, they can build better web applications with rich experiences. Web standards also help avoid vendor lock-in and evolve to support new technology and web design models. A website built using web standards works well on all browsers.

Web Design Standards vs Web Development Standards

Web design standards and web development standards are related but cover different parts of building a website.

Web design standards

Web design standards define how a website should look, feel, and behave for the user. They cover layout, typography, color contrast, responsive design, and accessibility. The most important here are WCAG (for accessibility) and CSS specifications (for visual presentation).

Web development standards

Web development standards define how the code behind a website should be written. They cover HTML structure, JavaScript behavior, performance, and security. The main ones are the HTML Living Standard, ECMAScript, and HTTP/HTTPS protocols.

Both sets of standards rely on the same governing bodies (W3C, WHATWG, IETF) and overlap in practice. A well-built website follows both at the same time.

Examples of Web Standards

HTML (HyperText Markup Language)

HTML defines the structure of every web page. The current version is the HTML Living Standard, maintained by WHATWG. It is continuously updated to support modern web features.

CSS (Cascading Style Sheets)

CSS controls the appearance of web pages: layout, colors, typography, animations. It is maintained by the W3C CSS Working Group and is now in CSS3, split into many independent modules.

JavaScript / ECMAScript

JavaScript is the standard scripting language for the web. Its specification is called ECMAScript and is published by ECMA International. Every browser implements the same version.

HTTP and HTTPS

HTTP is the protocol used to transfer data between browsers and servers. HTTPS adds encryption on top of it. Both are standardized by the IETF.

WCAG (Web Content Accessibility Guidelines)

WCAG defines how to make web content accessible to people with disabilities. The current version, WCAG 2.2, is maintained by the W3C and is also published as an ISO standard.

WAI-ARIA

WAI-ARIA adds extra information to HTML so that assistive technologies, such as screen readers, can understand complex interfaces.

Image formats (SVG, PNG, WebP, AVIF)

These standardized image formats ensure that images render correctly across all browsers and devices.

FAQs

What is a web standard?

A web standard is a formal specification that defines how a part of the web should work. Standards cover languages (HTML, CSS, JavaScript), protocols (HTTP), and guidelines (WCAG).

Why are web standards important?

Web standards make websites work the same way on every browser and device. They improve accessibility, security, performance, and search engine visibility.

Who is making the web standards?

The main organizations are the W3C, WHATWG, IETF, ECMA International, and ISO. They work with browser vendors and the developer community to publish and update specifications.

What are the latest web standards?

The most recent updates include the HTML Living Standard, CSS3 modules, ECMAScript 2024, WCAG 2.2, and HTTP/3. These are continuously developed instead of released in fixed versions.

Are web standards mandatory?

Web standards are not laws, but most browsers, developers, and platforms follow them. Ignoring them usually breaks compatibility, hurts accessibility, and lowers search rankings.

What happens if a website does not follow web standards?

It may render incorrectly in some browsers, fail accessibility checks, perform poorly in search results, and be harder to maintain.