Your site is like a vehicle. Some features should be viewed and interacted together: your page copy, pictures, pictures, videos, shape matches, navigation, etc.. These are similar to an automobile’s paint job, body, dash and inside seats.Then there will be the hidden elements of your website — your robot.txt file, your CSS, HTML and JavaScript files, your own backend settings, etc.. Such as the gears, valves, tubes, gaskets and other parts under the hood of a car, they are not intuitive or pretty. But they’re central to the functioning of your site.