Text

The plain text document format.

Sitemap

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

CGI

An interface specification that enables web servers to execute an external program to process HTTP requests.

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.

RDF

A W3C standard model to describe and exchange graph data on the web.

XML

A markup language and file format for storing, transmitting, and reconstructing arbitrary data.

OpenAPI

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

Markdown

A markup language used to add formatting to plain text documents.

Webmention

A simple protocol to notify any URL when a website links to it, and for web pages to request notifications when somebody links to them.

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.

Prerender

The rel="prerender" attribute on HTML elements.

Humans.txt

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

WCAG

The Web Content Accessibility Guidelines are a set of recommendations for making web content more accessible, developed by W3C.

LLMs.txt

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

WebAssembly

A portable binary code format that can be run in modern web browsers with near-native performance.

ESI

A simple markup language used to define web page components for dynamic assembly and delivery of web applications at the edge of the Internet.

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.