SEO
SEO for the platform you already have.
A rebuild is not the first answer. These pages are the work on the CMS you are keeping.
How to use this
Pick the stack you are staying on.
Each platform leaks indexation in a different place: tags and authors on WordPress, facets and apps on Shopify, collection architecture on BigCommerce, the CMS model on Webflow. The pages below are those differences.
If the theme cannot hold the pages, the web design platform page is the next step. We will say that in the diagnostic instead of forcing content into a template that cannot rank.
Platform
WordPress
Archives, titles, and internal links on the templates you already have. A new theme is a different project.
Platform
Shopify
The URLs a shopper should land on, minus the filter pages and dead products. The theme stays unless it cannot hold the fields.
Platform
WooCommerce
Categories, attributes, and the parameter URLs that should not be indexed. The store stays up. The theme is not the project.
Platform
Webflow
Titles bound on the collection template, a closed staging site, and a redirect list. We are not redrawing the layout.
Platform
BigCommerce
Which category should rank, which facets should not, and a front end that actually prints the fields. The catalog stays.