If you have a website, you should have Google Analytics. It only starts tracking your site from the date you install it, so add it today so you won’t regret it tomorrow when you’re wanting to know more about your site visitors. Analytics are the only way to make smart decisions about your site.
If you don’t want to add another plugin to your site, (good for you!), then you can still add the Google Analytics tracking code manually.
In the footer.php or index.php file, find the </body> html tag
Copy and paste the Google Analytics code before the tag. The code will look something like this: