After you’ve made the changes to your website, whether that be on-page changes such as edits to headers or images or off-page changes such as edits to your page title or meta description, you can easily publish these changes to your website directly within the Onsite Optimizer.
To do so, simply click the green ‘Publish’ button found towards the top-right corner of the screen.
Please note that while these changes will affect the website's font end, the website's backend (in the CMS) will not be updated.