I am suddenly seeing a lot of URL redirects on Google Search Console for my Shopify store for product pages with /collections/all/ in their URL. What could be the reason for it?
That's an interesting issue!

Seeing URL redirects in Google Search Console (GSC) for your Shopify store's product pages with `/collections/all/` in their URL can have several reasons. Here are some possible explanations:

1. **Canonicalization**: Shopify might be automatically canonicalizing product URLs to prevent duplicate content issues. When a product belongs to multiple collections, Shopify might create redirects from the `/collections/all/` URL to the canonical URL of the product. This is a common practice to avoid duplicate content penalties from search engines.
2. **Collection pagination**: If you have a large number of products in a collection, Shopify might be paginating the collection pages. When a user navigates to a paginated collection page (e.g., `/collections/all?page=2`), Shopify might redirect them to the canonical URL of the product or the first page of the collection.
3. **URL rewriting**: Shopify has a built-in URL rewriting system that can cause redirects. For example, if you have a product with a URL like `/collections/all/my-product`, Shopify might redirect it to a more SEO-friendly URL like `/products/my-product`.
4. **Theme or app configuration**: Your Shopify theme or an installed app might be configured to redirect URLs containing `/collections/all/` to a different URL structure. Check your theme settings and app configurations to see if there are any redirect rules in place.
5. **Legacy URL structure**: If you've recently changed your URL structure or migrated from an older Shopify
The most likely reason for this is that you have multiple versions of your product page, with and without the /collections/all/ in the URL. This can happen if you have a page that is dynamically generated with the /collections/all/ in the URL and another version of the page without the /collections/all/ in the URL. To resolve this, you should consolidate the two pages into one page with the /collections/all/ in the URL or remove the /collections/all/ from the URL altogether.