Set http 2 with php For setup http/2 on apache with php installed, set apache with php-fpm For example on debian server: apachectl stop apt-get install php7.3-fpm # Install the php-fpm from your PHP repository. This package name depends on the vendor. a2enmod proxy_fcgi setenvif a2enconf php7.3-fpm # Again, this depends on your PHP vendor. a2dismod php7.3 # This disables mod_php. a2dismod mpm_prefork # This disables the prefork MPM. Only one MPM can run at a time. a2enmod mpm_event # Enable event MPM. You could also enable mpm_worker. apachectl start Source → How to enable HTTP/2 support in Apache