wp-includes/deprecated.php:3480$urlstringboolfunction url_is_accessable_via_ssl( $url ) { _deprecated_function( __FUNCTION__, '4.0.0' ); $response = wp_remote_get( set_url_scheme( $url, 'https' ) ); if ( !is_wp_error( $response ) ) { $status = wp_remote_retrieve_response_code( $response ); if ( 200 == $status || 401 == $status ) { return true; } } return false;}Introduced in 2.5.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/deprecated.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.