# How do JavaScript redirects affect SEO?

> For permanent URL changes, HTTP redirects are generally preferable because the redirect is communicated directly at the protocol level.

For example:

`HTTP/1.1 301 Moved Permanently
Location: https://example.com/new-page
`
JavaScript navigation adds another processing dependency.

During migrations, validate:

- old URL;

- HTTP status;

- final destination;

- redirect chain;

- canonical;

- internal links;

- sitemap references.

Google's site-move documentation provides specific guidance for redirects and URL migrations.

## Sources

- [Google Search Central — Site Move With URL Changes](https://developers.google.com/search/docs/crawling-indexing/site-move-with-url-changes)

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Answered by Abhinav Krishna (https://www.theseocentral.com/author/abhinav-krishna)
Source: https://www.theseocentral.com/technical-seo-faq/how-do-javascript-redirects-affect-seo