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

Sitemap

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

Text

The plain text document format.

Markdown

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

XML

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

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.

Humans.txt

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

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.

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.

Onion

Sites are websites on the dark web that use the .onion top-level domain and are only accessible through online routing through Tor.

LLMs.txt

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