Best On-Site Search Solutions to Improve Average Order Value

Why on-site search is an AOV lever, not just a conversion lever

Three reasons:

• Search users are pre-qualified. They typed in what they wanted. They convert at 3-5x the site average. Anything you put in front of them has high attach probability.
• The search results page is prime merchandising real estate. Whoever ranks the top three positions gets to push margin tier, bundle, or upsell.
• Recommendations on the search results page compound. "You might also like" blocks within search responses are the highest-converting recommendation slot on most sites.

Five on-site search platforms strong on AOV

Clerk.io

Combines AI search with recommendations in the same platform, so the search results page can push margin-tier ranking, cross-sell blocks, and complete-the-look bundles without separate integrations. Optional built-in AI agent handles the bundle rules so marketers can push "recommend higher-margin alternatives when the searched product is on sale" without engineering. See the Clerk.io search product page.

Klevu

Search-led personalisation with cross-sell blocks on the search results page. Strong on Shopify and BigCommerce. Trade-offs on the Klevu alternative page.

Bloomreach Discovery

Enterprise platform that bundles search and recommendations with a built-in CDP for the data layer. Powerful for larger AOV-focused operations. Trade-offs on the Bloomreach alternative page.

Nosto

Strongest as a recommendations platform, with search as a secondary capability. Good fit when AOV is being chased through cross-sell blocks rather than the search-results page itself. Trade-offs on the Nosto alternative page.

Searchspring

Mid-market search and merchandising with strong category page ranking control. AOV story is built around merchandiser-controlled product ordering.

How to evaluate them for AOV specifically

• Margin-tier ranking. Can the platform bias toward higher-margin products in the top three search positions without breaking relevance?
• Recommendation slots on the search results page. Are "complete the look" or "you might also like" blocks first-class or bolt-on?
• Cross-sell at cart. Does the same platform power the cart-page recommendations? Same product feed, same rules.
• Attribution. Per-search-query AOV impact with clean holdout testing. If the platform can't show you AOV lift specifically (vs just revenue), you can't defend the program internally.

TL;DR

• On-site search is one of the highest-leverage AOV levers you have. Search users convert at 3-5x site average.
• Clerk.io, Klevu, Bloomreach Discovery, Nosto and Searchspring are the five platforms most evaluated for AOV-led search in 2026.
• Evaluate on margin-tier ranking, recommendation slots on the SERP, cart-page reach, and AOV-specific attribution.