Technical guides

Plenty of stores have a cookie banner and assume Consent Mode v2 is handled. Those are two different things. Here is what actually changes, the order the signals need to fire in, and a real case of a half-translated…

A discontinued product, a URL that changed during a migration, a page removed for good: each one deserves a different HTTP status code, and picking the wrong one quietly costs traffic. Here is how to decide, with a real…

A facet is not a UI widget, it is a question answered twice per page: which results match, and how many would match for every other value on offer. Here is how Elasticsearch answers both in one pass, and the two ways…

A shopper ticks a filter that promises 12 results and gets 8, or the other way round. It is not a UI quirk, it is one of the most common problems in faceted search, and on a large catalog it has a very real cost in…

Adding Elasticsearch or a similar engine to PrestaShop improves search, but if the index update is done poorly it can slow down checkout itself. Here is what actually happens when a customer changes a cart quantity.

With a few hundred products, PrestaShop search always feels fine. With tens of thousands, it starts to choke. Here is where the time goes, measured on a real 200,000-product catalog.

One day we looked at our own store's statistics and they said 43,478 visits. Real people, that same day, were about 300. The rest were automated programs, and the filter meant to keep them out was stuck fifteen years in…

Whoever sells you a migration talks about launch day. Almost nobody talks about the week after, when the real problems show up: URLs nobody remapped, a cookie banner that no longer tells countries apart, compliance…

How to upload the zip of an update without losing your settings, and what to do when PrestaShop shows Upload failed and disables the module without saying so.