Install SeaText on Squarespace Header and Footer for Site-Wide Coverage
Yes, you can install SeaText on your Squarespace site's header and footer so it appears on all pages. Use the Code Injection panel under Developer Tools in your Squarespace settings to paste the SeaText...
Quick Answer: Yes, Use Code Injection
You can add SeaText to your Squarespace site's header and footer so it loads on every page. The method is called Code Injection. It lives in your Squarespace dashboard under Settings → Developer Tools → Code Injection. Paste the SeaText JavaScript snippet into the HEADER field, click Save, and publish your site.
This is the official method SeaText documents for Squarespace. It works because Squarespace injects code placed in the Header field into the <head> section of every page on your site. That means the SeaText script runs site-wide, not just on one page.
Prerequisites Before You Start
Before you open your Squarespace dashboard, make sure you have these three things ready:
- A SeaText AI account. You cannot install the script without one. If you don't have an account yet, create one first.
- Your SeaText JavaScript code snippet. Copy it from your SeaText dashboard. It appears in the integration section.
- Access to your Squarespace site's settings. You need to be an admin or have permission to edit site settings.
One important note: each SeaText account is linked to a single primary URL. If you need SeaText on multiple domains, create a separate account for each domain. Development URLs like localhost are restricted for security reasons.
Step-by-Step: Install SeaText on Squarespace
Step 1: Log into Your Squarespace Dashboard
Go to your Squarespace account and open the site you want to modify. You'll land on the Home menu.
Step 2: Navigate to Settings
Click the three dots icon (⋯) in the left panel. From the dropdown, select Settings.
Step 3: Open Developer Tools
Scroll to the bottom of the Settings page. You'll see a section called Developer Tools. It's located at the very end of the page. Click on it.
Step 4: Click Code Injection
Inside Developer Tools, click on Code Injection. This opens the area where you can insert custom code snippets.
Step 5: Paste the SeaText Code into the HEADER Field
You'll see two fields: Header and Footer. Paste your SeaText JavaScript code snippet into the HEADER field. This is the recommended location because it ensures the script loads early on every page.
You can also paste it into the Footer field if you prefer. Both will load site-wide. The Header field is what SeaText's official instructions specify.
Step 6: Click Save
After pasting the code, click Save to preserve your changes.
Step 7: Publish Your Site
Make sure your website is published. Changes to Code Injection only take effect on the live, published version of your site. If you're working in a preview or draft mode, the script won't run until you publish.
Verify the Installation Works
After publishing, follow these steps to confirm SeaText is active:
- Visit or refresh your website several times. Stay on the page for at least 40 seconds. This activates the AI and links it to your account.
- Wait at least five minutes. Then check your SeaText dashboard. You should see your website name displayed next to the SEATEXT logo at the top of the page.
- If you don't see it after 10 minutes, contact SeaText support. This could indicate an installation issue on your platform.
This verification step is critical. It confirms that the script is actually running on your site and that SeaText can associate traffic with your account.
Header vs. Footer: Which Should You Use?
Both the Header and Footer fields in Squarespace Code Injection load code on every page. The difference is where in the page the code loads.
| Placement | Where It Loads | Best For |
|---|---|---|
| Header | In the <head> section, before the page content | Scripts that need to run early, like analytics or AI agents that modify page content |
| Footer | At the end of the page, after all content | Scripts that don't need to run until the page is fully loaded |
For SeaText, use the Header field. That's what the official integration guide specifies. It ensures the AI can read and adapt page content as it loads.
Common Mistakes to Avoid
- Pasting the code in the wrong field. Make sure you use the Header field, not the Footer field, if you're following SeaText's instructions exactly.
- Forgetting to publish. Code Injection changes don't apply until you publish your site.
- Using a development domain. SeaText restricts development URLs like localhost. Use a valid, real domain.
- Using one account for multiple domains. Each SeaText account is linked to a single primary URL. Create separate accounts for each website.
- Not waiting for activation. The AI needs time to activate. Visit your site for at least 40 seconds and wait five minutes before checking.
What SeaText Does Once Installed
Once the script is running, SeaText deploys autonomous AI agents that work in real time. These agents can:
- Increase your website conversion rate
- Recover ad spend lost to bot traffic
- Translate content across 125 languages
- Continuously optimize every visitor journey
- Adapt landing pages to match Google Ads keywords
- Publish helpful crawlable answers that rank across Google and AI search
The installation process is secure. The AI remains inert until activated, ensuring the integrity of your website's content.
Limitations and When This Advice Doesn't Apply
This header/footer injection method works for standard Squarespace sites. It may not apply if:
- You're using a Squarespace trial or preview mode. Code Injection may not be available on all plans.
- You have a custom domain that isn't verified. SeaText needs a valid, real domain to associate traffic with your account.
- You're using a dynamic development environment. Dynamic development domains may not function properly because SeaText might be unable to reliably associate traffic with your account.
- You need SeaText on multiple websites. You must create one account for each website. You cannot use a single account across multiple domains.
Frequently Asked Questions
Can I paste the SeaText code in the Footer field instead of the Header field?
Yes, you can. Both fields load code on every page. However, SeaText's official instructions specify the Header field. Use Header for the best results.
Do I need a SeaText account before installing?
Yes. You need a SEATEXT AI account before you can install the script. If you don't have one, create an account first.
How long does it take for SeaText to activate after installation?
Visit or refresh your website several times and stay on the page for at least 40 seconds. Then wait at least five minutes. You should see your website name next to the SEATEXT logo in your dashboard. If not, contact support after 10 minutes.
Can I use one SeaText account for multiple Squarespace sites?
No. Each SeaText account is linked to a single primary URL. Create a separate account for each website or domain.
Will SeaText work on a localhost or development domain?
No. Development URLs such as localhost are restricted for security reasons. Use a valid, real domain.
What happens if I don't publish my Squarespace site after adding the code?
The code won't run. Code Injection changes only take effect on the published version of your site. Make sure to publish.
Is the installation process secure?
Yes. The installation process is secure, and the AI remains inert until activated, ensuring the integrity of your website's content.
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