# DetectStack

> DetectStack is a Shopify storefront research tool that identifies a store's theme and publicly visible app integrations from its URL.

Use DetectStack to research public Shopify storefront technology. Detection results describe public signals and should not be treated as a complete inventory of a store's private configuration.

## Product

- [DetectStack homepage](https://detectstack.app/): Detect a Shopify storefront's theme and publicly visible app integrations.
- [Articles](https://detectstack.app/articles): Shopify troubleshooting, ecommerce operations, and storefront-research guides.

## Guides

- [How to fix sold out issues on Shopify](https://detectstack.app/articles/fix-sold-out-issues-shopify): Fix Shopify products that incorrectly show Sold Out with a practical inventory, location, shipping, and sales-channel checklist.
- [5 Shopify preorder apps compared in 2026](https://detectstack.app/articles/best-shopify-preorder-apps-compared): Compare five Shopify preorder apps by features, pricing, discounts, and back-in-stock tools to choose the right option for your store.
- [What Is Dropshipping? Dropshipping vs Warehouse Fulfilment](https://detectstack.app/articles/what-is-dropshipping-vs-warehouse): Learn what dropshipping is, how it works, and how it differs from warehouse fulfilment.
- [What Is Shopify Sidekick? A Practical Guide for Merchants](https://detectstack.app/articles/what-is-shopify-sidekick): Learn what Shopify Sidekick does, where it helps with store work, what needs review, and how it differs from a customer-facing AI chatbot.
- [Shopify Black Friday Checklist: Prepare Your Sale Before You Start Promoting It (2026)](https://detectstack.app/articles/shopify-black-friday): Use this Shopify Black Friday checklist to prepare your store for BFCM with a practical plan for offers, inventory, checkout, marketing, support, and retention.

## Company information

- [Contact DetectStack](https://detectstack.app/contact): Contact information for DetectStack.
- [Cookie policy](https://detectstack.app/cookie-policy): DetectStack's cookie policy.