Check that the snippet is implemented
3 min
- Optimizely Web Experimentation
- Optimizely Personalization
- Optimizely Performance Edge
Find the snippet on the page
First, check that the snippet is implemented on the page. You can do this by typing 'optimizely' into the JavaScript console. This example uses Google Chrome for troubleshooting and testing.
- Open the developer consoledeveloper console.
- Click Console, then enter optimizely into Search*.

*
- If the snippet is implemented, it displays in the following format:
<script src="//cdn.optimizely.com/js/123456789.js"></script>
If the snippet is not on the page, implement the snippetimplement the snippet. If it is, check that it is the correct snippet.
Check that it is the correct snippet
After you find the snippet on your page, make sure that the snippet on the page matches the project that you are working on.
- In your project, go to Settings > Implementation.
- Check that the ID on your page matches the snippet on your Snippet Implementation page. If your account uses custom snippetscustom snippets, you might see more than one snippet listed. In this case, choose the snippet you are using for your experiment.
Warning
Do not modify the snippet. Copy and paste it onto your site exactly as you see it within Optimizely Web Experimentation or Optimizely Personalization. Otherwise, Optimizely may not run correctly on your site.
For example, do not add an id="optimizely" attribute to the script.