Hey there, WordPress user! Are you looking to take your website to the next level? A/B testing is one of the most powerful ways to optimize your site for conversions, and Google Optimize is a fantastic free tool to help you do just that.
In this ultimate guide, I‘ll show you exactly how to add Google Optimize to your WordPress site using two methods:
- The easy way using the MonsterInsights plugin (recommended)
- The manual way by editing your Google Analytics code
But first, let‘s dive into why you should be using Google Optimize in the first place.
Why Use Google Optimize on Your WordPress Site?
Picture this: you have a landing page that‘s getting tons of traffic, but your conversion rates are lackluster. Wouldn‘t it be great if you could test out different versions of that page to see what resonates best with your audience?
That‘s exactly what Google Optimize allows you to do! With Optimize, you can create A/B tests, multivariate tests, and personalizations to:
- π Boost your conversion rates
- π° Increase your revenue and sales
- π§ͺ Experiment with different designs, copy, and layouts
- π― Deliver targeted experiences to specific audiences
Best of all, Google Optimize is completely FREE and integrates seamlessly with Google Analytics. This means you can create tests right in the Optimize interface and see the results directly in your Analytics reports.
How to Set Up a Google Optimize Account
Before you can start using Optimize on your WordPress site, you‘ll need to set up a free account. Here‘s how:
- Go to https://optimize.google.com/ and click the "Get started" button.
- Sign in with your Google account (or create a new one if needed).
- Accept the terms of service and choose your email preferences.
- Click "Create Account" to complete the setup process.

Once your account is created, you‘ll be taken to the Optimize dashboard. Here you can create your first "container", which is essentially a workspace for your experiments and personalizations.
Go ahead and create a new container for your WordPress site. You can choose whether to use the Google Analytics 4 or Universal Analytics version. If you‘re not sure, stick with Universal Analytics for now.

Adding Google Optimize to WordPress with MonsterInsights
Now that you have a Google Optimize account and container set up, it‘s time to connect it to your WordPress site. The easiest way to do this is by using the MonsterInsights plugin.
MonsterInsights is the best Google Analytics plugin for WordPress, with over 3 million active installs. It allows you to easily connect your WordPress site to Google Analytics without editing any code. Plus, it offers a variety of advanced tracking features, including Google Optimize integration.
Here‘s how to set it up:
Install and activate the MonsterInsights plugin on your WordPress site. (You‘ll need at least the Pro plan to access the Google Optimize addon.)
Go to the MonsterInsights settings page and authenticate with your Google Analytics account.
Navigate to the "Conversions" tab and scroll down to the "Google Optimize" section.
Paste in your Google Optimize container ID and toggle the "Enable Google Optimize Async Page Hide" option on. This will minimize page flashing for your visitors.

- Save your changes.
That‘s it! MonsterInsights will now automatically add the necessary Optimize code to your WordPress site. No need to mess with any code yourself.
Manually Adding Google Optimize to WordPress
If you prefer a more hands-on approach, you can also add the Google Optimize code to your WordPress site manually. To do this, you‘ll need to edit your existing Google Analytics tracking code.
Typically, your Google Analytics code will be added to your site in one of three ways:
- Using the MonsterInsights plugin
- Using a header/footer script plugin like Insert Headers and Footers
- Directly in your WordPress theme‘s header.php file
If you‘re using MonsterInsights, I recommend sticking with the plugin integration method described above. But if you‘re using a different method, here‘s how to manually add the Optimize code:
- Locate your Google Analytics tracking code. It should look something like this:
<!-- Google Analytics -->
<script>
(function(i,s,o,g,r,a,m){i[‘GoogleAnalyticsObject‘]=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,‘script‘,‘https://www.google-analytics.com/analytics.js‘,‘ga‘);
ga(‘create‘, ‘UA-XXXXXXXX-X‘, ‘auto‘);
ga(‘send‘, ‘pageview‘);
</script>
<!-- End Google Analytics -->- Insert the following line of code above the
ga(‘send‘, ‘pageview‘);line:
ga(‘require‘, ‘GTM-XXXXXXX‘);Replace GTM-XXXXXXX with your actual Google Optimize container ID.
- Save your changes and clear your WordPress cache if needed.
Your finished code should look like this:
<!-- Google Analytics -->
<script>
(function(i,s,o,g,r,a,m){i[‘GoogleAnalyticsObject‘]=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,‘script‘,‘https://www.google-analytics.com/analytics.js‘,‘ga‘);
ga(‘create‘, ‘UA-XXXXXXXX-X‘, ‘auto‘);
ga(‘require‘, ‘GTM-XXXXXXX‘);
ga(‘send‘, ‘pageview‘);
</script>
<!-- End Google Analytics -->Troubleshooting Tips
If you‘re having trouble getting Google Optimize to work after manually adding the code, here are a few things to check:
- Make sure you‘ve added the
ga(‘require‘, ‘GTM-XXXXXXX‘);line to the correct place in your code - Double-check that you‘ve replaced
GTM-XXXXXXXwith your actual container ID - Ensure that your Google Analytics tracking code is firing correctly on your site
- Clear your WordPress cache and browser cache, then test again
Google Optimize vs. Other A/B Testing Tools
While Google Optimize is a great free option for A/B testing, it‘s not the only tool out there. Here‘s a quick comparison of Google Optimize vs. some of the other popular A/B testing tools:
| Tool | Pricing | Key Features |
|---|---|---|
| Google Optimize | Free | β Native Google Analytics integration β Visual editor for creating variations β Experiment objectives and targeting |
| Optimizely | Starts at $50/month | β Drag-and-drop visual editor β Robust targeting and segmentation β Experimentation analytics and insights |
| VWO | Starts at $99/month | β Easy-to-use visual editor β Heatmaps and session recordings β Integrated survey and feedback tools |
| Convert.com | Starts at $699/month | β Advanced testing and personalization β Server-side and mobile app testing β Dedicated success team |
As you can see, Google Optimize is the only completely free option on the list. This makes it a great choice for small businesses and bloggers who are just getting started with A/B testing.
However, if you need more advanced features and dedicated support, you may want to consider investing in a paid tool like Optimizely or VWO.
Case Studies: Successful A/B Tests Using Google Optimize
To give you some inspiration for your own tests, here are a few examples of successful A/B tests conducted using Google Optimize:
HubSpot
HubSpot, a leading marketing and sales software company, used Google Optimize to test different variations of their homepage hero section. By testing different headlines, images, and calls-to-action, they were able to achieve a 27% lift in conversions.
MeUndies
MeUndies, a popular underwear and loungewear brand, used Google Optimize to test a new product page layout. The winning variation featured larger product images, a sticky "Add to Cart" button, and social proof elements. This test resulted in a 9.4% increase in conversion rate.
Trello
Trello, a web-based project management tool, used Google Optimize to test different onboarding flows for new users. By personalizing the onboarding experience based on user inputs, they were able to increase activation rates by 36%.
These are just a few examples, but they demonstrate the power of A/B testing to drive meaningful business results. By continuously experimenting and optimizing, you can unlock massive growth for your own website.
FAQs About Adding Google Optimize to WordPress
Before we wrap up, let‘s address some of the most common questions about using Google Optimize with WordPress:
Can I use Google Optimize with any WordPress theme?
Yes, you can use Google Optimize with any WordPress theme. The integration methods described in this guide (MonsterInsights or manual code) will work regardless of what theme you‘re using.
Do I need to have Google Analytics installed to use Google Optimize?
Yes, Google Optimize requires Google Analytics to be installed on your site. This is because Optimize uses Analytics data to power its experiments and personalizations.
If you don‘t have Google Analytics set up yet, be sure to do that first before trying to add Google Optimize.
Can I run multiple experiments at the same time?
Yes, you can run multiple experiments simultaneously in Google Optimize. However, it‘s recommended to limit the number of concurrent experiments to avoid conflicts and skewed data.
As a general rule of thumb, try to run no more than 3-5 experiments at a time on a single page or site.
How long should I run an A/B test for?
The length of your A/B test will depend on factors like your traffic volume, desired statistical significance, and the magnitude of the changes being tested.
In general, it‘s recommended to run tests for at least 1-2 weeks to account for weekly fluctuations in traffic and behavior. For low-traffic sites, you may need to run tests for even longer (4+ weeks) to reach statistical significance.
Use the built-in calculator in Google Optimize to estimate how long your test will need to run based on your specific goals and metrics.
Start A/B Testing with Google Optimize Today!
Congratulations! You now have all the knowledge you need to add Google Optimize to your WordPress site and start running A/B tests like a pro.
Whether you choose the easy route with MonsterInsights or the manual code integration, the important thing is to START TESTING.
Remember, even small changes can lead to big wins when it comes to conversion optimization. By continuously experimenting and iterating, you‘ll be well on your way to unlocking your website‘s full potential.
So what are you waiting for? Get out there and start optimizing! ππ―π°
If you have any questions or need further assistance, feel free to drop a comment below. I‘m here to help!
And if you found this guide helpful, be sure to share it with your fellow WordPress users and marketers. Together, we can spread the gospel of A/B testing far and wide!
Happy optimizing!
