These records are shared by every content module. Input types and layouts define what an editor fills in; categories and tags file records; global components are content placed once and reused.
API ReferenceContent
Common
The records no single module owns: input types, layouts and their categories, categories, global components and tags.
About common
In Common
Input Types6 endpoints
The field types a layout area is bound to, such as Text, Richtext, Switch, Component Collection and the site’s own select types.
Layouts5 endpoints
Layouts and the areas they expose. A layout is hidden rather than deleted.
Layout Categories2 endpoints
The groups layouts are sorted into in the admin.
Categories7 endpoints
The shared category tree that pages, posts and other records are filed under.
Global Components5 endpoints
Components defined once and reused across pages, read in templates through $_globalComponents.
Tags3 endpoints
Tags, listed and read.
Languages and lookups7 endpoints
Languages and currencies, countries and their states, and the custom URL check.