2.3.49 ExpiresDefault
ExpiresDefault specifies the default validity period when the Expires and Cache-Control headers are added to a response.
Description
ExpiresDefault specifies the default validity period when the Expires and Cache-Control headers are added to a response. This directive is enabled when On is specified in the ExpiresActive directive. This setting is overwritten by the ExpiresByType directive for each MIME type.
Set the reference time by specifying A or M, and then specify the validity period (the amount of time from the reference time until the time of expiration) in seconds. Do not insert a space character between the reference time (A or M) and the validity period.
- A
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Sets the time when the client was accessed as the reference time.
- M
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Sets the time when the file was last updated as the reference time.
- Important note
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To use this directive, you need to embed the mod_expires module.
LoadModule expires_module modules/mod_expires.so
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Set a validity period that does not exceed 3:14:07 a.m. GMT (Greenwich Mean Time) on January 19, 2038.
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Syntax
ExpiresDefault {A|M}amount_of_time
Specifiable values
0 to 2147483647
Locations where it can be written
httpsd.conf, <VirtualHost>, <Directory>, and .htaccess
Overwrite permission
Indexes level
Example
ExpiresDefault A604800