You're welcome to add Google Analytics to any site to augment the stats that Weebly already provide for each site. It's a free tool enabling you to analyze your website traffic in more depth.
To add Google Analytics to your site, sign-up for an account and add your site (ex. http://jimthemonkey.com) to that account. Google will provide you with a block of code to add to your site. Copy this code - you'll need to paste to a specific area of our editor. If you have trouble finding this code, take a look at Google's help page.
Once you have copied to code from Google log-in to your Weebly Website Builder and click "Edit Site". Then go to the "Settings" tab and select the "SEO" section. Paste the code into either the Header or Footer area.
Save and then Publish your site.
Google will now begin tracking the traffic to your website. Please note that there is a 24 to 48-hour delay between when you add the code to your website and when stats become available in Google Analytics.