How to Secure Webflow Sites With Custom Headers and Scripts

We’ll explain why headers are important, which scripts to use, and how to implement them in Webflow without slowing down performance.

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Why Security Headers Are Important

Security headers tell browsers how to handle your web page. They add an extra layer of protection against common threats like cross-site scripting (XSS), clickjacking, and data theft.

Some of the most important security headers include:

• Content-Security-Policy (CSP): Controls which resources (scripts, images, styles) can be loaded on your page.
• X-Frame-Options: Prevents clickjacking by controlling whether your page can be embedded in iframes.
• Strict-Transport-Security (HSTS): Forces browsers to connect over HTTPS.
• X-Content-Type-Options: Prevents browsers from interpreting files as a different MIME type.

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Adding Custom Headers in Webflow

Webflow allows you to add custom code snippets in two main ways:

• Site Settings → Custom Code
• Insert headers under “Header Code” for global application.
• Page Settings → Custom Code
• Add headers or meta tags for specific pages.

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For example, to add an HSTS header, you can use:

<meta http-equiv="Strict-Transport-Security" content="max-age=31536000; includeSubDomains">

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Securing Webflow with Custom Scripts

Scripts can improve security when used correctly. Examples include:

• reCAPTCHA: Protects forms from bots and spam.
• Custom Input Validation: Ensures that data entered into forms is secure.
• Script Monitoring: Monitor suspicious traffic or brute force attempts.

Always host scripts from trusted sources and avoid third-party scripts that you don't fully trust, as they can expose your site to risks.

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Webflow Security Best Practices

• Always run your Webflow site over HTTPS (over SSL).
• Regularly review third-party integrations and scripts.
• Use the minimum permissions required when integrating external services.
• Test your site with tools like SecurityHeaders.com
  or Google Lighthouse to identify gaps.

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Adding custom headers and scripts in Webflow gives you more control over your security and helps protect your business, users, and data. By combining strong security practices with Webflow’s robust hosting, you’ll keep your website safe and highly efficient.