JavaScript redirects use scripting to automatically send users and search engines from one URL to another after a page loads.
JavaScript redirects are typically implemented using window.location or window.location.replace() methods. They’re executed client-side (in the browser), making them less reliable for SEO compared to server-side redirects (like 301 or 302). However, they’re still used in dynamic web apps and certain tracking or marketing scenarios.
How to Use JavaScript Redirects
Here’s a basic example:
<script>
window.location.href = "https://new-destination.com";
</script>
Or to replace the current page in browser history:
<script>
window.location.replace("https://new-destination.com");
</script>
When to Use
- Redirect users based on conditions (e.g., device type, language, time)
- Dynamically control navigation in SPAs or web apps
- For temporary marketing or campaign URLs
SEO Considerations
Google can process JavaScript redirects, but they are not ideal for SEO-critical redirects like moving pages or consolidating authority. Use server-side 301s for permanent redirects.
