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Using code injection

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 and Commerce plans.

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Before you begin

Add code to code injection

To add custom code to code injection:

  1. In the Home menu, click Settings, click Advanced, then click Code Injection.
  2. Add valid HTML or scripts into the appropriate Code Injection fields for the header, footer, lock page, or order confirmation page.
  3. After adding your code, click Save.

Code added here is injected into the <head> tag on every page in your site.

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. This works well for adding third-party tracking and affiliate programs to your store.

There are six tags you can use to insert information specific to the customer:

  • {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

Per-page code injection

You can also inject code into a specific page:

  1. Hover over the page in the Pages panel.
  2. Click the icon.
  3. 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:

  1. Prompt the message to appear by typing /safe at the end of your secure editing URL, then pressing Enter.
  2. 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:
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