2.3.48 ExpiresActive

Description

ExpiresActive specifies whether to add Expires and Cache-Control headers to responses.

Important note

• You need to embed the mod_expires module to use this directive.

  LoadModule expires_module modules/mod_expires.so

• When the ExpiresDefault directive or the ExpiresByType directive is not specified, even if On is specified in the ExpiresActive, Expires and Cache-Control headers are not added.

Syntax

ExpiresActive {On|Off}

Specifiable values

On

Expires and Cache-Control headers are added.

Off

Expires and Cache-Control headers are not added.

Default value

If the definition item is omitted

Off

Locations where it can be written

httpsd.conf, <VirtualHost>, <Directory>, and .htaccess

Overwrite permission

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