# Our best PrestaShop modules for technical SEO

> 301 redirects, all-in-one SEO, SEO facets, hreflang, advanced XML sitemap, Indexing API, smart 404 and Core Web Vitals: the complete selection for solid technical SEO on PrestaShop 8 & 9.

- Page: <https://www.datafirefly.com/en/solutions/prestashop/technical-seo/>
- Language: en
- Last updated: 2026-09-23
- Other languages: [fr](https://www.datafirefly.com/solutions/prestashop/seo-technique/index.md), [de](https://www.datafirefly.com/de/solutions/prestashop/technisches-seo/index.md), [es](https://www.datafirefly.com/es/solutions/prestashop/seo-tecnico/index.md), [it](https://www.datafirefly.com/it/solutions/prestashop/seo-tecnica/index.md), [pl](https://www.datafirefly.com/pl/solutions/prestashop/seo-techniczne/index.md), [nl](https://www.datafirefly.com/nl/solutions/prestashop/technische-seo/index.md), [pt](https://www.datafirefly.com/pt/solutions/prestashop/seo-tecnico/index.md)
- Index: <https://www.datafirefly.com/en/solutions/llms.txt>

## Technical SEO is not optimisation, it is maintenance

There are two kinds of SEO. One creates value: writing content, answering questions, building authority. The other prevents value from leaking: making sure Google can read you, understand you and index you without friction.

This selection belongs to the second kind. It is **less glamorous and more profitable** — because no amount of content saves a technically broken store. A 404 on a page that used to rank costs you immediately. A faulty hreflang sends your German visitors to the French page. Duplicate content from filters cannibalises your own pages.

## PrestaShop has structural traps

Faceted navigation generates URLs by the thousand that all show the same thing. Slugs change when a product is renamed, with no redirect created. The default 404 page is a dead end. Multilingual without clean hreflang — and Google decides for itself which language version to show.

None of these traps is unsolvable. All of them are invisible until traffic drops.

## What to do first

Redirects. Before anything else. Every 301 you forget after a migration or a slug change is authority lost — and it never comes back on its own. The rest can wait. _This_ cannot.

## Further reading

Three in-depth guides from the blog complete this selection: [301 redirects, 404 monitoring and slug changes after a migration](https://www.datafirefly.com/en/2026/07/04/301-redirects-404-monitoring-slug-change-seo-prestashop-2026/), [indexing with Google Indexing API and IndexNow](https://www.datafirefly.com/en/2026/06/07/indexing-2026-google-indexing-api-indexnow-ai-bots-prestashop/), and [the Core Web Vitals checklist for PrestaShop 8](https://www.datafirefly.com/en/2026/05/09/prestashop-8-performance-core-web-vitals-checklist-2026-lcp-inp-cls/).