WordPress at a glance
filter is not described

ossdl_off_blog_url filter-hook . WPSCache 1.0

Usage

add_filter( 'ossdl_off_blog_url', 'filter_function_name_3514' );
function filter_function_name_3514( $ossdl_off_blog_url ){
	// filter...

	return $ossdl_off_blog_url;
}
$ossdl_off_blog_url
-

Where the hook is called

scossdl_off_get_options()
ossdl_off_blog_url
WP_Super_Cache_Rest_Get_Settings::get_ossdl_off_blog_url()
ossdl_off_blog_url
wp-super-cache/ossdl-cdn.php 37
$ossdl_off_blog_url = untrailingslashit( apply_filters( 'ossdl_off_blog_url', $ossdl_off_blog_url ) );
wp-super-cache/rest/class.wp-super-cache-rest-get-settings.php 62
$url = apply_filters( 'ossdl_off_blog_url', untrailingslashit( get_option( 'siteurl' ) ) );

Where in WP core the hook is used WP Super Cache

Usage not found.