> ## Documentation Index
> Fetch the complete documentation index at: https://docs.gocertify.me/llms.txt
> Use this file to discover all available pages before exploring further.
# On Site Messaging
> Start building loyal communities with targeted, gated offers.
On-site messaging (OSM) is a powerful way to drive conversions by surfacing offers directly on product/checkout pages, maximising conversion of high intent shoppers.
No additional development work is needed to add OSM to your site as long as the [head script](section/gettingStarted/integrateOnSite) has already been installed.
## Types of on-site messaging
Out of the box, Gocertify supports three main types of on-site messages, but with heavy customisation available you can build a tailored placement that meets your needs.
Display rewards directly on product/checkout pages, maximising conversion of high intent shoppers.
Display rewards from a prominent sticky bar at the top or bottom of your site. Highly visible and no-dev installation.
Display a hovering trigger that floats above the page content. Highly visible and no-dev installation.
## Managing on-site messaging
Your on-site messages will only show if there are live offers available for the shopper. While your brand is still in setup you may not see your on-site messages.
You have full control of all your on-site messages via the [Gocertify dashboard](https://secure.gocertify.me/dashboard), including creating new placements, editing content and setting visibility rules.
## Previewing your placement
When editing an on-site message, click **View full page mockup** in the Live preview section to see how your placement will appear on a product page.
