Search is central to how customers find products, and Magento treats it as a core service rather than an afterthought. Recent versions of Magento require a dedicated search engine, and OpenSearch is the engine now used for that role. Without it, catalogue search and product listing simply will not work as intended.

This is another reason Magento hosting needs more than a basic web server.

Why Magento Uses a Dedicated Search Engine

Searching a large product catalogue quickly and relevantly is a hard problem. A database can store products, but it is not built to rank results, handle typos, or filter by many attributes at once with good performance.

A purpose-built search engine like OpenSearch indexes the catalogue and answers search queries far faster and more intelligently than querying the database directly.

From Elasticsearch to OpenSearch

For several years Magento used Elasticsearch as its search engine. More recent Magento releases moved to OpenSearch, and it is now the recommended engine for current versions. Functionally it fills the same role — the important point for merchants is that a compatible search engine is a hard requirement, not an optional extra.

What OpenSearch Powers in Your Store

OpenSearch does more than the search box. It underpins several everyday parts of the storefront:

• Catalogue search — fast, relevant results as customers type.
• Layered navigation — filtering products by attributes such as price, colour or size.
• Product listings — efficiently retrieving and ordering products in category pages.

Because so much of the shopping experience depends on it, a healthy search engine is essential to both usability and conversion.

What Happens Without It?

On hosting that does not provide a search engine, Magento cannot complete its setup correctly and catalogue search fails. This is a frequent stumbling block when merchants try to run Magento on hosting that was never designed for it.

Do You Have to Manage OpenSearch Yourself?

Running OpenSearch means provisioning it, keeping it indexed and keeping it healthy alongside Magento. On managed hosting this is handled by the provider as part of the environment.

MyShopCarts provides and manages the search engine in every store's isolated environment, together with the other services Magento depends on — including in-memory caching, explained in why Magento needs Redis. For the bigger picture, see what Magento hosting is.

Learn more about managed Magento hosting and choose a plan that fits your store.