Today, the World Wide Web Consortium (W3C) dropped two significant First Public Working Drafts that signal important progress in two very different but equally critical areas of the web: interactive performance and efficient semantic data exchange . The Web Performance Working Group published the First Public Working Draft of the Long Animation Frames API , while the JSON-LD Working Group released the First Public Working Draft of CBOR-LD 1.0 . Both specifications are now open for community review and feedback. Let’s dive deep into what each brings to the table, why they matter, and how they could shape the future of web development. 1. Long Animation Frames API: Better Tools to Fight UI Jank and Improve Responsiveness Published: April 28, 2026 Working Group: Web Performance Working Group Draft Link: https://www.w3.org/TR/2026/WD-long-animation-frames-20260428/ The Problem It Solves Modern web applications are expected to feel buttery smooth. Users demand instant response...

The W3C Membership approved the 2025 W3C Process Document, which takes effect today, 18 August 2025. Major changes: Removing the Proposed Recommendation phase of the Recommendation track, and applying the Advisory Committee (AC) Review instead directly to the Candidate Recommendation. This maintains the qualifications for Recommendation while reducing administrative steps. Introducing a new Charter Refinement phase to formalize the issue-tracking and decision-making of our currently informal review phase prior to Member Review (AC Review) of a charter. The goals of this new phase are to: Reduce the number of Formal Objections raised during AC Review that could have been avoided by solving small problems earlier and developing consensus on larger ones through dialog. Ensuring that comments get addressed, and not ignored, by those developing the charter. Making the chartering process more understandable, and therefore easier to participate in. Other significant changes: Requiring higher ...

W3C announced today the  IAB/W3C Workshop on Age-Based Restrictions on Content Access , 7-9 October 2025, in London, UK. The Internet Architecture Board (IAB) and World Wide Web Consortium (W3C) are convening a workshop to examine the technical and architectural implications of different approaches to implementing age-based restrictions on access to online content. Introduction The young are often unprepared for the sorts of things they might find online. Maturity, education, and the guidance of responsible adults can help children navigate online interactions, but age is often regarded as the best indicator of how able a person is to cope with exposure to content.  Increasing interest is being shown in the implementation of regulation that restricts what content young people can access online. A recurring theme in these efforts is that it is no longer considered sufficient to rely on self-assertions of age. A number of jurisdictions have enacted—or are in the process of enact...

The Device APIs Working Group has published a Working Draft of Network Service Discovery . This specification defines a mechanism for an HTML document to discover and subsequently communicate with HTTP-based services advertised via common discovery protocols within the current network. Learn more about the Ubiquitous Web Applications Activity .

W3C published the report from the W3C Workshop on Web Tracking and User Privacy held at Princeton University in April. The large and diverse group of participants had an engaging discussion yielding consensus on the importance, time-sensitivity and complexity of the issue and revealing promising areas for standards work. They encourage interested parties to continue discussion on the public mailing list , including on the possibility of W3C forming new groups in this area. Workshop sponsors: Adobe, Yahoo!, Google, Mozilla and Microsoft.

The RDF Web Applications Working Group has published the First Public Working Draft of the RDF Interfaces specification. The goal of the RDF Interfaces specification is to provide a common development environment for Web Applications that utilize structured data and RDF. It provides interfaces for creating and managing RDF Triples, Graphs, and Parsers. It also provides the basic building blocks for the upcoming RDF API and the recently published RDFa API. While RDF support is a priority, support for Microdata and Microformats are also provided through extensible-by-design interfaces for parsers and Graph storage. Since this is a First Public Working Draft, the document is expected to change over the coming months. For more information about the Semantic Web, please see the Semantic Web Activity .

W3C today launched a new Web Real-Time Communications Working Group to define client-side APIs to enable Real-Time Communications in Web browsers. These APIs should enable building applications that can be run inside a browser, requiring no extra downloads or plugins, that allow communication between parties using audio, video and supplementary real-time communication, without having to use intervening servers. Read the full charter and learn more about W3C's Ubiquitous Web Applications Activity .

The Web Events Working Group has published the First Public Working Draft of Touch Events Specification. The Touch Interface specification defines a set of low-level events that represent one or more points of contact with a touch-sensitive surface, and changes of those points with respect to the surface and any DOM elements displayed upon it (e.g., for touch screens) or associated with it (e.g., for drawing tablets without displays). It also addresses pen-tablet devices, such as drawing tablets, with consideration toward stylus capabilities. Learn more about the Rich Web Client Activity .

W3C is pleased to announce its latest online training course: Introduction to Mobile Web and Application Best Practices . This course includes a lot of new material concerning Web applications. Delivered over 8 weeks, the course will help Web designers and content producers to become familiar with the Web as delivered on mobile devices. It is based entirely on W3C standards, particularly the Mobile Web Best Practices and Mobile Web Application Best Practices. Participants will learn in particular about which versions of HTML and CSS to use for mobile today, client-side and server-side content adaptation techniques, and exciting new APIs available on modern mobile platforms. The full price for the new course is €195 but there are two early bird periods. From now until Friday 6 May you can enroll for just €95. The second early bird period runs until Friday 27th May at €145. See full details of the course and register now.

Developers and designers are excited by the ability to use SVG in all modern browsers. W3C joins other sponsors to help with SVG Open 2011 , the 9th international conference on Scalable Vector Graphics, 17-20 October 2011. This year, Microsoft Corporation will be hosting the conference at their New England Research and Development (NERD) Center in Cambridge, Massachusetts. SVG Open provides an opportunity for designers, developers and implementers to learn about SVG, and share ideas, experiences, products, and strategies. Members of the W3C SVG Working Group , including W3C Team members Chris Lilley and Doug Schepers, will be attending and presenting at the conference. The SVG Working Group will also brief attendees on recent developments around the SVG specification, including SVG2 and integration with CSS and HTML. The conference includes a day of workshops. The deadline for presentation abstracts and course outlines has been extended through 15 May. Learn more about the W3C Graphics...

The Device APIs and Policy Working Group has published a Working Draft of HTML Media Capture . This specification defines a new interface for media files, a new parameter for the accept attribute of the HTML input element in file upload state, and recommendations for providing optimized access to the microphone and camera of a hosting device. Learn more about the Ubiquitous Web Applications Activity .

The HTML Working Group has published the First Public Working Draft of HTML to Platform Accessibility APIs Implementation Guide . This is draft documentation mapping HTML elements and attributes to accessibility API Roles, States and Properties on a variety of platforms. It provides recommendations on deriving the accessible names and descriptions for HTML elements. It also provides accessible feature implementation examples. Learn more about the HTML Activity .

The Device APIs and Policy Working Group has published a Working Draft of The Messaging API. This specification defines an API that provides access to messaging functionality in the device, including SMS, MMS and e-mail. Learn more about the Ubiquitous Web Applications Activity .

The HTML Working Group published eight documents: Working Drafts of the HTML5 specification , the accompanying explanatory document HTML5 differences from HTML4 , and the related non-normative reference HTML: The Markup Language . Working Drafts of the specifications HTML+RDFa 1.1 and HTML Microdata , which define mechanisms for embedding machine-readable data in HTML documents, and the specification HTML Canvas 2D Context , which defines a 2D immediate-mode graphics API for use with the HTML5 <canvas> element. HTML5: Techniques for providing useful text alternatives , which is intended to help authors provide useful text alternatives for images in HTML documents. Polyglot Markup: HTML-Compatible XHTML Documents , which is intended to help authors produce XHTML documents that are also compatible with non-XML HTML syntax and parsing rules. Learn more about HTML5

W3C announced a new Provenance Working Group , whose mission is to support the widespread publication and use of provenance information of Web documents, data, and resources. The Working Group will publish W3C Recommendations that define a language for exchanging provenance information among applications. See the Provenance Working Group Charter for more information. W3C also renewed the RDF Web Applications Working Group , formerly the RDFa Working Group. The mission of the group is to support the developing use of RDF for embedding and handling structured data in Web documents in general. The Working Group will publish W3C Recommendations to extend and enhance the currently published RDFa 1.0 documents, including an API, as well as a general RDF API aimed at ECMAScript. The Working Group will also support the HTML Working Group in its work on incorporating RDFa in HTML5 and XHTML5 (as a followup on the the currently published Working Draft for RDFa 1.0 in HTML5). See the RDF W...

W3C publishes a report from the Second Web and TV Workshop, which took place in Berlin in February. The report summarizes the discussion among the 77 participating organizations and highlights some key Web and TV convergence priorities: Adaptive streaming over HTTP Home networking and second-screen scenarios The role of metadata and relation to Semantic Web technology Ensuring that convergent solutions are accessible Profiling and testing Possible extensions to HTML5 for Television Prioritization now continues in the W3C Web and TV Interest Group . That group will review existing work, as well as the relationship between services on the Web and TV services. It will identify requirements and potential solutions to ensure that the Web will function well with TV. The W3C Workshop in Berlin was made possible in part by sponsorship from Netflix, IPTV Forum Japan, and Tomo-Digi. This second Web and TV workshop was also organized with the support of the OMWeb EU project. Read the p...

Tracking (e.g., for behavioral advertising) has come to the forefront recently as part of the overall Web privacy conversation in the broader Web and policy community. Several software vendors (including Microsoft, Mozilla, and Google) are offering measures that are intended to permit users to opt out of this tracking, or to prevent tracking by Web sites that are known to engage in these practices. Similar technology is deployed in a number of plugins (including NoScript, AdBlock plus, TACO, and PrivacyChoice). As part of ongoing efforts in the area of user privacy on the Web, W3C is organizing a Workshop on Web Tracking and User Privacy , 28-29 April 2011 in Princeton, New Jersey (USA). Topics are likely to include: whether a do not track proposal is advisable or other means might accomplish the same goals; benefits and challenges of browser-bade approaches; other approaches to better user privacy in the face of frequent online tracking. Anyone may participate in this Workshop; a pos...

The HTML Working Group published eight documents: Working Drafts of the HTML5 specification , the accompanying explanatory document HTML5 differences from HTML4 , and the related non-normative reference HTML: The Markup Language . Working Drafts of the specifications HTML+RDFa 1.1 and HTML Microdata , which define mechanisms for embedding machine-readable data in HTML documents, and the specification HTML Canvas 2D Context , which defines a 2D immediate-mode graphics API for use with the HTML5 <canvas> element. HTML5: Techniques for providing useful text alternatives , which is intended to help authors provide useful text alternatives for images in HTML documents. Polyglot Markup: HTML-Compatible XHTML Documents , which is intended to help authors produce XHTML documents that are also compatible with non-XML HTML syntax and parsing rules. Learn more about HTML5 . Related Link XHTML page with considerations of search engine optimization