How do I redirect old blog URLs in Squarespace?

Definition: A Squarespace blog redirect forwards an old post address to its replacement through URL mappings. As of October 2026, Squarespace documents the [name] variable for redirecting collection items when their shared blog path changes.

Key facts

• Squarespace's URL mappings guide uses 301 for permanent moves and 302 for temporary changes.
• The URL slugs guide states that changing a page slug requires a redirect to forward traffic from old links.
• Google's site move guidance recommends testing redirects and updating internal links to the new addresses.

Which parts of a blog URL change?

A URL slug is the address assigned to a page or collection item. A collection item is an individual entry within a collection page, such as a blog post. Squarespace's URL slugs documentation explains that blog post URLs begin with the blog page slug. The remaining part depends on the post title and the default post URL format.

The blog page slug changes in page settings. The individual post slug changes in the post's Post URL field. These are separate settings: editing the post field changes only the post portion of the address.

The Blog preferences panel also controls the default Post URL format, which can include title and creation-date variables. Changing that default applies to subsequent posts; existing post URLs retain their format. The migration inventory therefore needs actual old and new addresses for existing posts.

Which mapping pattern fits the move?

Squarespace's mapping examples provide this rule for changing the collection path while retaining post slugs:

/blog/[name] -> /posts/[name] 301

Here, [name] substitutes the post portion: /blog/example-post leads to /posts/example-post. A post whose slug also changes needs an individual mapping using its complete old and new paths. Specific rules precede broader rules because mappings run from top to bottom.

For imported posts previously located at the domain root, Squarespace documents:

/[name] -> /blog/[name] 301

For old addresses ending in .html, the documented alternative is:

/[name].html -> /blog/[name] 301

These are alternative patterns for different source structures. The previous host's URL structure determines the source pattern.

Where are mappings saved and checked?

Squarespace's setup instructions specify Developer tools > URL mappings, followed by Save. The old address must be inactive and the destination enabled.

Google's migration guidance recommends redirecting directly to the final destination. A redirect chain sends a request through intermediate addresses. Google recommends testing individual URLs with URL Inspection, or larger sets with command line tools or scripts. Internal links also need updating to their destination URLs.

Related terms

• HTTP redirects
• How do I add a URL mapping in Squarespace?
• How do I choose a temporary redirect in Squarespace?

FAQ

How can I find the public post address?

Squarespace's slug guidance suggests full preview or a private browsing window. The logged-in editor address for a collection page contains an internal identifier.

Why does a working redirect later show a missing-page error?

Squarespace's troubleshooting guidance says activating a redirect repeatedly within two minutes can trigger a 404 response as a precaution against redirect loops. A disabled or deleted destination also causes this error.

Sources

1. Squarespace, "URL mappings", 8 September 2026
2. Squarespace, "URL slugs", 22 April 2026
3. Google Search Central, "How to move a site", 20 August 2026

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