Insert custom HTML or scripts in your site's pages.
You can use code injection to add HTML and scripts that enhance specific parts of your site. These might include live chat services, domain verification for custom email services, or site analytics.
Code injection isn't intended for adding content or styles. To add content to your site, visit Pages and content basics. To add custom CSS for styles, use the Custom CSS Editor.
Code injection is a premium feature available in Business, Commerce, Professional, and Premium plans.
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Before you begin
- If you add code to code injection, we may ask you to disable it while editing your site.
- To add JavaScript to a code injection field, surround the code with <script></script> tags.
- We recommend adding CSS to the Custom CSS Editor instead of code injection. If you're adding it to code injection, surround the code with <style></style> tags.
- The footer area is defined by your site's template and version.
- Ajax loading may prevent CSS added to code injection from loading correctly. Add CSS to the CSS Editor instead.
Add code to code injection
To add custom code to code injection:
- Open the Developer tools panel.
- Click Code Injection.
- Add valid HTML or scripts into the appropriate Code Injection fields for the header, footer, lock page, or order confirmation page.
- After adding your code, click Save.
Header
Code added here is injected into the <head> tag on every page in your site.
Footer
Code added here is injected before the closing </body> tag on every page in your site.
Lock page
The lock screen appears when a page or site is hidden behind a site-wide or page password. Code injected here displays above the lock screen's password field.
Although you can add code to this field, we recommend you use the Lock Screen panel to design your lock page instead. That way, you can add a background image or slideshow, adjust font styles, incorporate your logo, and more.
Order confirmation page
Code added here is injected into the order confirmation page that appears after a customer checks out with gift cards, memberships, and subscriptions.
There are six tags you can use to insert information specific to the customer. If a purchase is divided because it contains multiple fulfillment profiles, details will display for each order in the purchase.
- {orderId} – The order number of the confirmed order
- {orderSubtotal} – The subtotal of the confirmed order
- {orderSubtotalCents} – The subtotal of the confirmed order, in cents
- {orderGrandTotal} – The grand total of the confirmed order
- {orderGrandTotalCents} – The grand total of the confirmed order, in cents
- {customerEmailAddress} – The customer's email address, as they enter it in the "Your Email" section at checkout
Order status page
Code added here is injected into the order status page, which is the confirmation page that displays after a customer checks out with physical, digital download, and service products. Customers can also return to this page later to check their order status.
There are six tags you can use to insert information specific to the customer. If a purchase is divided because it contains multiple fulfillment profiles, details will display for each order in the purchase.
- {orderId} – The order number of the confirmed order
- {orderSubtotal} – The subtotal of the confirmed order
- {orderSubtotalCents} – The subtotal of the confirmed order, in cents
- {orderGrandTotal} – The grand total of the confirmed order
- {orderGrandTotalCents} – The grand total of the confirmed order, in cents
- {customerEmailAddress} – The customer's email address, as they enter it in the "Your Email" section at checkout
Customers can visit the order status page repeatedly, which might trigger tracking scripts multiple times. To avoid counting the same customer twice with tracking scripts, place any scripts you only want to run on the first visit to the order status page after checkout between {.if firstPageView} and {.end} tags. For example:
{.if firstPageView}
Add the tracking scripts you want to run only after checkout here
{.end}
Add scripts you want to run on every visit here
Migrating your order confirmation page custom code
We updated the order confirmation page for physical, digital, and service products. Customers who buy these product types land on a page that displays the order status, its details, and the option to create a customer account.
If this banner displays in the code injection panel, it means you've added code injection to the original order confirmation page, and this update hasn't applied to your site.
To apply this update to your site and send shoppers to the new order confirmation page after checkout for digital, physical, and service products:
- Copy the code in the order confirmation page field.
- Paste it into the order status page field.
- Click Save.
- Click I have migrated my custom code.
Until you follow these steps, all shoppers will land on the original order confirmation page after checkout for all purchases.
Per-page code injection
You can also inject code into a specific page:
- Hover over the page in the Pages panel.
- Click the
icon. - Click Advanced.
Page Header Code Injection adds code to the <head> tag of that page.
In blog page settings, Post Blog Item Code Injection adds code to every blog post.
How code injection appears depends on your site's version.
Keep in mind:
- We don't recommend using HTML in the Page Header Code Injection. If you do, the code won't appear if you turn off your site header's transparency.
- Post Blog Item Code Injection appears below the post content.
Keep in mind:
- Code injection won't appear on Index landing pages.
- Depending on your template, Post Blog Item Code Injection appears above or below the post content.
- In templates with the Grid/list Blog Page, the code displays on the blog landing page and not on individual posts.
Disable scripts in preview
Custom code can sometimes prevent you from securely editing your site. When helping you troubleshoot, we may ask you to disable scripts in preview. This means that you won’t see your custom code while logged in, but it won’t affect how your site appears to visitors.
You’ll see this message at the bottom of your site if your code is interfering:
We detected an error loading your site preview. This is usually caused by injected code.
To edit securely, click Disable Scripts in Preview at the bottom of your site. The message will change to Scripts have been disabled on your site preview. To view your custom code, open a new private or incognito window in your browser and enter your page’s URL.
If the disable scripts message doesn't appear automatically:
- Prompt the message to appear by typing /safe at the end of your secure editing URL, then pressing Enter.
- If this doesn't work, check any areas where you've added custom code to temporarily remove it while troubleshooting.
After disabling your code, you may see an Enable Scripts in Preview? message. We don't recommend clicking this, as it may interfere with your ability to preview, edit, or run your site when you're logged in. It’s not possible to hide this message, but you’ll only see it when you’re logged in—it’s not visible to visitors.
Custom code modifications fall outside the scope of our support. This means that we’re unable to help further with setup or troubleshooting. Additionally, with a code-based solution, we can’t guarantee its functionality or full compatibility with Squarespace. This includes how it functions with our responsive design, particularly its appearance on mobile devices, and if it functions on all templates. Custom code can also cause display issues with future updates to our platform. While we can't help further, there are many resources that can point you in the right direction:
- Learn best practices for adding custom code.
- Read our general guide on third-party customizations.
- Visit Squarespace Forum, our customer and developer community.
- Hire a Squarespace Expert to help build custom code for your site.
- Explore our premium and enterprise-level plans to develop a more customized solution for your business.