# `_hidden`

This field controls if Lektor should process the page into a build artifact. By default, each page is built into a build artifact (HTML page) and each attachment is copied to the output directory. This can be prevented for a particular page or attachment by setting its `_hidden` to `yes`.

If an explicit value for the `_hidden` field is not set, the value of the `hidden` option in the child configuration — or, for attachments, attachment configuration — section of the parent's datamodel is checked. If that, too, is not set, then pages, but not attachments, inherit the hidden status of their parent — that is, by default, children of hidden pages will not be built, though attachments of hidden pages will.

This is useful for more advanced setups like Single Page Applications.

Hidden pages are automatically also removed from the `.children` property of records but stay available for querying via the pad.

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