Selection guide

Which e-commerce search engine
should you choose?

From the free CMS plugin to the dedicated SaaS solution: compare approaches, identify your needs and choose the right solution for your store.

Internal search: an underused lever

Visitors who use the search bar are your best prospects - and often the most poorly served.

43%
Of e-commerce visitors go directly to the search bar upon arriving at a site
Baymard Institute
2-3x
Higher conversion rate for sessions including a search compared to sessions without
Forrester Research
>15%
Of queries return zero results on a poorly configured default CMS search engine
Baymard Institute

3 solution types, 3 effort levels

Each approach suits a different profile based on catalog size, available technical resources and performance goals.

Included
Native CMS engine

The built-in search in PrestaShop, WooCommerce or Shopify. Free, no installation needed, but with limited capabilities.

  • No installation or extra cost
  • Automatic maintenance with the CMS
  • No semantic search
  • Basic typo tolerance
  • Absent or poor autocomplete
Ideal for: catalogs < 100 products, zero budget
Plugin
Third-party module or plugin

An extension installed from the CMS marketplace that replaces or improves the native engine. Quality varies greatly between publishers.

  • Easy to install from the back-office
  • Features often superior to native
  • Compatibility risks during CMS updates
  • Dependency on a third-party developer
  • Limited performance on large catalogs
Ideal for: catalogs 100-500 products, moderate budget

5 questions to ask before choosing

Beyond the spec sheet, these five points determine whether a solution will actually work for your store.

1

How good is the semantic search?

A keyword engine only returns products containing the exact search terms. A semantic engine understands the intent: "lightweight shoes for summer" can return sandals or espadrilles. The difference is directly measurable in zero-result rate and conversion rate.

2

How long does integration take?

A solution requiring 3 weeks of development will be poorly configured or abandoned. The best SaaS solutions integrate with a JavaScript tag in under an hour. Integration speed also determines how quickly you can test and adjust.

3

Are the pricing plans transparent and predictable?

Beware of volume-based pricing with no cap, which can create unexpected bills during traffic peaks. Prefer models with fixed quotas or no extra charge for temporary overages.

4

Can it be configured without a developer?

Synonym management, redirects and boost rules should be accessible from a business dashboard, without code deployment. Otherwise, every relevance adjustment becomes a development ticket.

5

What analytics data is available?

A good search engine provides at minimum: most frequent queries, zero-result rate per term, suggestion click-through rate and conversion per query. Without this data, it's impossible to know whether the engine is performing or not.

The 3 approaches at a glance

To compare SaaS solutions head-to-head (Doofinder, Algolia, Klevu, Vectail...), see the full comparison →

Criterion Native CMS Module / Plugin Dedicated SaaS
Semantic quality Basic Variable Advanced (AI)
Integration Included CMS module JS tag (< 1h)
Monthly cost Free $20 - $100 From $29
Maintenance Automatic CMS updates Managed
Built-in analytics None Limited Full
Scalability Low Medium Unlimited
Guide
E-commerce internal site search: features, integration and metrics

Platform-specific guides

Each platform has its own specifics. Check the guide for your CMS for integration steps and key details.

Try Google search for free

14-day trial, no credit card required. Your store powered by Google Vertex AI in under an hour.