Escape templates

Often used in system messages and templates with Parser Functions.

Citation templates

Used in almost every article

Meta templates

High-risk templates that serve as "roots" for more specific templates.

Interface templates

Templates that are used in the interface. That is, templates that have been designed to be used in the MediaWiki namespace and their dependencies.

Cenarium's stuff

Template:Short description and dependencies

Cascade protected images

The images listed here are protected even if they are accidentally deleted. Thus no-one can upload a bad image during that time. This also protects the images after they have been restored, since admins sometimes forget to re-protect the images after they have restored them.

Admins sometimes delete protected images by accident, or because they think we don't need them since they exist on Commons. But images are usually locally uploaded and protected here at the English Wikipedia since they are used in an interface message or in some widely used template. Thus these images are high-use and high-risk.

Used in interface and message boxes

The 50 most-used images

The 51-100 most used images

Images used in system messages

Other known high-risk images

Padlock sets

DYK stuff