Multilingual SEO for Europe and the UK: Domains, hreflang and AI Search

Selling from the UK into Germany, France and the Netherlands looks like one project when it is drawn on a sitemap. In search it turns out to be four. Each language has its own keywords, its own competitors and its own idea of what a trustworthy business looks like. A site that ranks well in English starts close to zero in German.

This guide covers the decisions that shape multilingual SEO in Europe: what to target, which domain structure to use, how to set up hreflang without the common errors, how to translate so the pages rank, and how consent rules and AI answers change the picture. For running a multi-country site day to day, such as translation workflow, regional speed and routing enquiries, see our guide to global website operations.

Language or country: decide what you are targeting

Start by deciding whether you are targeting languages or countries. If your offer, prices and delivery are the same everywhere, target languages: one German version serves Germany, Austria and German-speaking Switzerland. If prices, currency, shipping, legal terms or the product range differ, target countries: separate versions for Germany and Austria, even though both are in German.

Domains: country domains, subfolders or subdomains

For most small and mid-sized companies, subfolders on one strong domain are the best choice. Everything you earn, such as links, reviews and brand searches, helps every language at once. Country domains make sense when you have a real local entity, local staff and a marketing budget for each country. In the UK, a .co.uk domain still carries trust with consumers, which is worth weighing if the UK is your main market.

hreflang without the usual mistakes

hreflang is the markup that tells Google which version of a page is for which language or region. It does not push a page up the rankings. It makes sure the right version appears for the right searcher, so a buyer in Lyon sees your French page instead of the English one.

• Use the right codes. Language in ISO 639-1 and, optionally, region in ISO 3166-1: de, de-AT, fr-BE, en-GB. A frequent error is en-UK, which is not a valid code. It has to be en-GB.
• Make it reciprocal. If the English page points to the German page, the German page must point back. One-way links are ignored.
• Include the page itself. Each version lists every version, including its own URL.
• Add x-default for the page shown when no version matches, usually your main English page or a language chooser.
• Canonical tags point to the page itself, not to the English original. A canonical pointing elsewhere tells Google to ignore the translation.
• Use XML sitemaps for large sites. Adding hreflang in the sitemap is easier to maintain than tags on thousands of pages.

Google's guides to managing multi-regional sites and localized versions of a page are the references to give your developer.

Translation that ranks

Keywords do not translate one to one. A British shopper searches for a mobile phone case, an American for a cell phone case, and a German for a Handyhülle, a word no dictionary would give you from "mobile phone case". In French B2B software, buyers search for both "logiciel de gestion" and "ERP". Research keywords in each language from scratch, using local autocomplete, Keyword Planner set to that country, and Search Console once pages are live.

• Use machine translation as a draft if you like, but have a fluent speaker who knows your industry edit every page. Google's spam policies target automated content made to manipulate rankings, and unedited translations rarely convert anyway.
• Translate everything search engines read: page titles, meta descriptions, headings, image alt text, structured data and URL slugs.
• Localise the details: prices in euros or pounds, local phone formats, local delivery times, and the payment methods buyers expect, such as iDEAL in the Netherlands, Bancontact in Belgium and Klarna in much of northern Europe.
• Write FAQs per market. A Dutch buyer's questions about delivery and returns are not the same as a British buyer's.

Search engines and AI answers in Europe

Google is the dominant search engine in almost every European country, so it is the main target. Bing is worth a few hours of setup because it has a meaningful share on desktop and its index feeds Microsoft Copilot and other assistants. In the Czech Republic, the local engine Seznam still has a real share of searches and is worth checking if that market matters to you.

Google's AI Overviews now appear in most European countries and languages, and AI assistants are widely used for research before buying. Assistants tend to answer in the user's language and to prefer sources written in it. A German buyer who asks Perplexity for a supplier will mostly see German sources cited. If you only have English pages, you are largely absent from those answers, however good the English site is. Each language version needs the same answer-first structure as your main site: a direct answer at the top, clear headings, tables and steps.

GDPR, consent and measuring what works

In the EU and the UK, analytics and advertising cookies need consent, and many visitors decline. That leaves gaps in your analytics, and the gaps differ by country. Since March 2024, Google has required Consent Mode v2 for advertisers who want full measurement of users in the European Economic Area. Plan for incomplete data rather than treating analytics as the whole truth.

• Use Google Search Console and Bing Webmaster Tools as your record of search performance. They do not depend on cookies.
• Set up a property or filter for each language folder so you can see each market separately.
• Make sure your consent banner does not cover the page content in a way that blocks reading on mobile.
• Count enquiries and sales by market in your CRM, so a drop in tracked sessions is not mistaken for a drop in business.

Local authority in each market

Links and mentions from the UK do little for your German rankings. Each market needs its own evidence that you are a real, trusted supplier there: links from local trade publications and associations, listings in national business directories, case studies with local clients, and reviews. Trustpilot is widely read by consumers in the UK and several European countries, so it is worth setting up if you sell to consumers. Only show a local address or phone number if it is real. Virtual offices used only for search tend to be spotted and removed from maps.

A rollout order that works

We build multilingual sites for companies selling into the UK and Europe with this structure from the first release, and we can restructure an existing site without losing the rankings it already has. Our guide to redesigning without losing rankings covers that side. Tell us which markets you are targeting and we will suggest a structure that fits.