A set of criteria defined by the independent Acceptable Ads Committee that allows publishers to reach ad-blocking users with respectful, non-intrusive and relevant ads.

A backward-compatible CSS language extension inspired by Sass that supports variables, mixins, operations, and functions.

Trace Context

Defines standard HTTP headers and a value format for propagating context information that enables distributed tracing.

Sitemap

A specialized XML file that lists a website's URLs and helps search engines discover pages available for crawling and indexing.

Markdown

A lightweight markup language used to add formatting to plain text documents using simple, human-readable syntax.

Text

The plain text document format.

Prerender

A deprecated browser hint that instructed web browsers to preload and render a web page in the background before navigation occurred.

OpenAPI

A specification language for defining HTTP APIs, typically written in YAML or JSON.

LLMs.txt

A proposed standard that provides structured content and instructions to guide large language models in understanding and summarizing a website's content.

OpenTelemetry

An open-source, vendor-neutral observability framework and toolkit for collecting, processing, and exporting telemetry data such as traces, metrics, and logs.

WebAssembly

A portable binary instruction format that runs in modern web browsers with near-native performance, enabling frontend coding in languages that were not traditionally used for web interfaces, such as C/C++, C#, and Rust.

AdChoices

A self-regulatory standard for online interest-based advertising that gives consumers enhanced control over the collection and use of their data to deliver relevant ads.