XML

A markup language and file format for storing, transmitting, and reconstructing structured data in a platform-independent way.

Text

The plain text document format.

GraphQL

A data query and manipulation language for APIs typically used for remote client-server communications.

A proposed open standard for using rel-me links to profiles on OAuth supporting services to authenticate via either those profiles or your own site.

Sitemap

A file in XML format that allows webmasters to inform search engines about URLs on a website that are available for web crawling.

Markdown

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

Rack

A minimal, modular interface and invocation convention that operates between Ruby web servers and web applications to standardize how HTTP requests and responses are exchanged.

Trace Context

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

Humans.txt

A text file that can be created by developers to list the people who have contributed to a website.

XRDS

An XML-based file format that provides a list of service endpoints (e.g., OpenID) available on a website.

Prerender

The rel="prerender" attribute on HTML elements.

LLMs.txt

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

XMP

An ISO standard for creating, processing, and exchanging metadata for digital documents.

JSON Web Token

An open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object.