Why smarter search belongs on your WordPress website
Why smarter search belongs on your WordPress website
Search is important on many websites, but it is also easily overlooked. WordPress’s standard search is relatively basic, relying primarily on matching the words a visitor enters against content on the site. That may be perfectly adequate for a small website, but it becomes increasingly limiting as the volume and complexity of content grows.
The problem is that people don’t necessarily know what words you’ve used. They make spelling mistakes, use different terminology and increasingly type questions rather than carefully chosen keywords. The information they need may be there, but conventional search can still fail to find it.
This is an area where AI can provide a practical improvement rather than simply being added to a website for the sake of it.
WP Engine’s Smart Search AI replaces conventional WordPress search with a dedicated service capable of understanding the meaning behind a query as well as matching individual words. It can handle misspellings, search complex WordPress content and provide related-content recommendations, while the indexing and processing take place on dedicated external infrastructure rather than adding that work to the WordPress server.
At Castlegate IT, we think this has useful applications for a number of the websites we manage.
Understanding what visitors mean
Traditional keyword search is largely concerned with the words somebody enters. Semantic search is concerned with what they mean.
Suppose a website contains an article explaining how an organisation can reduce energy consumption in its offices, while a visitor searches for “cutting workplace electricity costs”. Those exact words may not appear in the article, but semantically they describe much the same subject.
Smart Search AI supports semantic search, conventional full-text search and a hybrid approach combining the two. It also provides fuzzy matching, so a spelling mistake doesn’t necessarily result in an empty results page.
For the visitor, the technology doesn’t need to be visible. They simply get a search facility that is considerably more forgiving about how they ask for something.
It can also search information held in Advanced Custom Fields, custom post types and taxonomies, which is particularly important on more sophisticated WordPress websites where much of the useful information doesn’t sit in conventional page content.
Ecommerce: helping customers find the right product
Search is particularly important for ecommerce because somebody using it often already has a reasonable idea of what they want.
A customer searching for “waterproof jaket” shouldn’t reach a dead end because they’ve misspelled “jacket”. Equally, someone may describe a product by what they need it to do rather than use the terminology chosen by the retailer.
Semantic and fuzzy search make the experience more forgiving, helping customers reach relevant products even when their query doesn’t precisely match the product name or description. Smart Search can also recommend related and trending products, providing additional opportunities for customers to discover something useful.
For WooCommerce sites with substantial product catalogues, better search can therefore remove an unnecessary source of friction between a customer arriving with an intention to buy and finding an appropriate product.
Making large amounts of content useful again
A different problem occurs on websites that have accumulated hundreds or thousands of articles, resources, guides, publications or other records. The information may be excellent, but much of its value is lost if visitors can’t find it.
This is common among professional associations, research organisations, charities, consultancies and academic networks. Visitors know the problem they’re trying to solve, but not necessarily the terminology used by the organisation or the title of the document containing the answer.
Semantic search is particularly useful here because it can consider the meaning of a query rather than relying solely on exact keyword matches. The ability to search custom post types, taxonomies and other structured WordPress data also means that publication archives, case studies, resources and directories can be made properly searchable.
Related-content recommendations provide another route into useful material that might otherwise remain buried in an archive.
Membership sites and gated content
Membership organisations, publishers and training providers have an additional consideration because not all content should necessarily be treated in the same way for every visitor.
Smart Search provides filtering, advanced operators and exclusion capabilities, while faceted search can allow visitors to narrow results by category, content type and other attributes. For more sophisticated implementations, these tools can be combined with the site’s existing access controls to create search experiences appropriate to different users.
This needs careful implementation where genuinely restricted information is involved, but it gives developers considerably more control than standard WordPress search.
Search and the wider AI picture
There is another reason we’re interested in this technology. WP Engine has developed an MCP server for Smart Search AI, allowing authorised external AI applications to query a site’s published content using the same semantic search infrastructure.
In practical terms, this points towards websites becoming live information sources for AI tools rather than AI relying solely on information it has previously discovered elsewhere.
We think that’s an interesting direction for WordPress, but our approach remains to start with a real problem rather than the technology. Improving search for people already using the website is valuable in its own right; the potential for the same structured information to become more useful to AI systems is an additional benefit.
Why we’re recommending it
We don’t recommend adding AI to a website simply because AI is fashionable. The question is whether it solves a problem.
If your website contains a few dozen straightforward pages and visitors rarely use search, there may be little reason to replace the existing functionality. If you have hundreds or thousands of products, articles, publications or resources and people struggle to find information that you know is there, the case is much stronger.
Smart Search AI is particularly interesting because it doesn’t require a website to be rebuilt or moved to WP Engine hosting. It works with existing WordPress content, supports more complex data structures and carries out its search processing on dedicated infrastructure rather than placing that workload on the website itself.
For suitable clients, we’re therefore beginning to offer Smart Search AI as an enhancement to the websites we manage.
If your website contains a lot of useful information but your visitors struggle to find it, get in touch. We can look at how your existing search performs, how your content is structured and whether smarter search would make a worthwhile difference.
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