Content localization is the process of adapting content for a specific market so it reads as if it had been written there. Translation changes the language; localization also changes whatever else would feel foreign to that audience: examples, units, dates, currency, images, tone, calls to action and the search keywords people actually type. A reader in Madrid, Mexico City or Osaka should never feel they are reading a copy of a page made for someone else.
Key takeaways
- Content localization is translation plus cultural, practical and search adaptation for one specific market (a “locale”, such as Spanish for Mexico,
es-MX). - It matters because most shoppers prefer to buy in their own language: in CSA Research’s survey of 8,709 consumers in 29 countries, 76% preferred product information in their own language and 40% said they never buy from websites in other languages.
- Not every page deserves the same effort. Localize deeply where money and trust are decided (product pages, pricing, checkout, onboarding, support) and use machine translation plus review for the long tail.
- A workable process has six steps: pick markets, set up the technical base, build a glossary and style guide, translate, adapt, then measure and maintain.
- Localized pages need their own URLs and hreflang tags, or search engines cannot show the right version to the right person.
What is content localization?
Content localization is adapting written, visual and interactive content to the language, culture, conventions and expectations of a target market. The unit you localize for is a locale: a language plus, usually, a region. fr-FR and fr-CA share a language but differ in vocabulary, spelling conventions, legal requirements and cultural references, so a page that works in Paris can still feel slightly off in Montreal.
In practice, localizing a piece of content means asking of every element: “Would a local write it this way?” If the answer is no, you change it. That can be as small as swapping 09/10/2026 for 10.09.2026 or as large as replacing a case study that only makes sense in the US.
Translation vs. localization vs. transcreation
These three terms are often mixed up. The difference is how far you are allowed to move away from the source text.
| Translation | Localization | Transcreation | |
|---|---|---|---|
| What changes | The language | Language plus formats, examples, visuals, keywords, legal details | The message itself is re-created for the market |
| Faithfulness to source | High | High for meaning, flexible for details | Low; the intent is kept, the words are not |
| Typical content | Help articles, documentation, product specs | Websites, apps, product pages, emails | Slogans, ad campaigns, brand taglines |
| Who does it | Machine translation, translators | Translators, reviewers, local marketers | Copywriters who are native speakers |
Most websites need a mix: translation for the long tail, localization for pages that sell, and transcreation for a handful of headlines and ads. For a deeper look at the first two, see the difference between translation and localization; for the third, our guide to transcreation.
Why content localization matters
People buy in their own language. The most-cited evidence is CSA Research’s “Can’t Read, Won’t Buy” study. Its 2020 edition surveyed 8,709 consumers in 29 countries and found that 76% prefer to buy products with information in their own language, and 40% will never buy from websites in other languages (survey summary, July 2020). If your site only speaks English, a large share of your potential market leaves before reading a word.
The web is also less English than it looks from inside it. W3Techs, which tracks the content language of websites, reports that English is used by 49.5% of sites whose language it can identify, followed by Spanish at 6.0%, German at 5.9% and Japanese at 4.9% (W3Techs, checked September 2026). So about half the web is written for readers who expect another language, and those readers search in it too.
Search engines need a real localized page to rank. Google’s own guidance recommends a separate URL for each language version rather than switching language with cookies or browser settings, and it detects a page’s language from its visible content (Google Search Central). A localized page with localized keywords is the version that can show up in local results.
Trust also depends on local details. Prices in a foreign currency, a phone number in another country, shipping promises that do not apply, or a date format that reads backwards all make a visitor hesitate, and localization is how you remove those doubts.
What to localize: a checklist
Go through this list page by page. Not every item applies everywhere, but you should decide on each one rather than skip it by accident.
Text and tone
- Body copy, headings, buttons, menus, form labels, error messages and alt text.
- Formality: many languages have a formal and an informal “you” (German Sie/du, French vous/tu, Spanish usted/tú). Pick one per brand and locale and write it into your style guide.
- Idioms, humor and wordplay. These rarely survive direct translation. Rewrite them or remove them.
Formats and practical details
- Dates, times, numbers and decimal separators (
1,000.50vs1.000,50). - Currency and prices, including whether tax is shown in the price.
- Units of measure, clothing and shoe sizes, paper sizes.
- Addresses, phone formats and postal code fields in forms.
- Payment methods, shipping options and return rules that match the market.
Visuals and media
- Images with people, gestures, food, holidays or landmarks that signal “made for somewhere else”.
- Text inside images and videos (it is invisible to text translation tools, so keep it out of images where you can).
- Colors and symbols with strong local meaning.
- Layout for right-to-left languages such as Arabic and Hebrew, and room for longer text (German and French often run noticeably longer than English).
Search and metadata
- Keywords: research what people in the market type. The literal translation of your English keyword is often not the term locals use.
- Page titles, meta descriptions, image alt text and structured data.
- URLs and hreflang annotations so each version is indexed and served to the right audience.
Legal and compliance
- Cookie and privacy notices, terms, warranty language, product labelling and anything regulated in that market.
How to localize content: a six-step process
1. Choose markets with data, not guesses
Start with the countries and languages already sending you traffic or sales. Your analytics tool shows visitors by country and browser language; Search Console shows which queries and countries bring impressions. A market where you already get visits in English, with no localized content, is usually the cheapest win. Decide on a small first set (one to three locales) so you can do it properly.
2. Set up the technical base first
Localized content needs somewhere to live:
- One URL per language version, using subdirectories (
example.com/es/), subdomains (es.example.com) or separate domains. Our comparison of subdirectories vs. subdomains covers the trade-offs. - hreflang tags on every version. Google’s rule is strict: each language version must list itself and every other version, and if two pages don’t point to each other the tags are ignored (Google Search Central).
- A language switcher that lets people change language themselves. Google also advises against automatically redirecting users based on a guess about their language.
3. Write a glossary and a style guide
Before anyone translates a sentence, agree on:
- A glossary of product names, brand terms and industry words, with the approved translation for each locale and a list of terms that must never be translated. See our guide to building a localization glossary.
- A style guide for each locale that settles formal or informal address, tone, punctuation, number conventions and words to avoid.
These two documents are what keep five translators, a machine translation engine and a marketing team sounding like one company.
4. Translate, with the right method for each page
Split your content by value:
- High-value pages (home page, pricing, product and checkout pages, main landing pages) get machine translation as a first draft, then a review and edit by a fluent speaker, ideally someone who knows the market.
- Medium-value pages (blog posts, help center) get machine translation with spot checks and glossary rules.
- Brand-defining lines (taglines, ad headlines) get transcreated by a native copywriter.
Modern neural machine translation is good enough that the first draft is rarely the bottleneck. Most of the localization work happens in review.
5. Adapt beyond the words
Now go through the checklist above for each page. Replace examples and testimonials with ones from the market where you have them. Swap images that look foreign. Check that prices, shipping and payment details are real for that country. Rewrite calls to action that sound odd in translation. Re-do keyword research and put the local terms into titles, headings and meta descriptions.
6. Measure, then maintain
Every time the source page changes, the localized versions drift, so localization never really ends. Track these for each locale:
- Organic impressions and clicks in Search Console (filter by country or by the
/es/folder). - Bounce rate, conversion rate and revenue compared to the source language.
- Support tickets in each language, which often reveal confusing translations.
Set a routine: new or changed source content gets translated and reviewed within a fixed time, and a native speaker reviews the top pages of each locale at least once a quarter.
Content localization examples
Here is what “adaptation” looks like on real page types:
- Take a US software pricing page going to Germany. Direct translation gives a correct German page with prices in dollars, a US phone number and an informal du. The localized version shows prices in euros, states whether VAT is included, uses the formal Sie (if that is the brand’s choice for B2B), and mentions GDPR-compliant data handling where it matters to buyers.
- An online store selling in Brazil needs more than Portuguese copy. Shoppers there expect prices in reais and local payment options, and size charts in Brazilian sizes. Product photos with winter coats in a December campaign make no sense in the Southern Hemisphere summer.
- A blog post aimed at both Mexico and Spain has to deal with vocabulary. Both countries speak Spanish, but the words differ. Spain says ordenador for computer while Mexico says computadora; a car is coche in Spain and carro or auto in much of Latin America. If you target both, either create two locales or choose neutral terms deliberately.
- Search keywords change even inside one language. A company selling “sneakers” in the US needs “trainers” for the UK, and that is a localization decision that no translation step would make.
If you want to see how a large media company approaches it, our breakdown of Netflix’s localization strategy walks through one company’s approach.
Common content localization mistakes
- Translating keywords literally. Research each market’s search terms; do not assume the dictionary word is what people search.
- Leaving half the page untranslated. Buttons, forms, error messages, emails and PDFs are easy to forget. Customers notice every English fragment.
- Baking text into images. It cannot be translated automatically and has to be re-made by hand for each language.
- Skipping the glossary. Without one, your product name ends up translated three different ways across the site.
- Auto-redirecting by IP or browser language instead of offering a clear switcher. Travellers and expats end up locked in the wrong language, and search engine crawlers may never see some versions.
- Publishing machine translation at scale with no review. Google’s spam policies list pages generated “through automated transformations like… translating” where little value is provided to users as an example of scaled content abuse (Google spam policies). Review the pages that matter and make sure each localized page is useful to the people reading it.
- Treating launch as the finish line. Without a maintenance routine, localized pages go stale within months.
Tools for content localization
Most teams use one of three kinds of tools:
- Translation management systems (TMS), used by teams localizing software strings, documents and apps with professional translators.
- CMS-native multilingual plugins, which store each translation as a separate post or page inside your CMS. Useful if your whole site lives in one CMS and you have editors to manage it.
- Website translation platforms, which sit on top of your existing site, detect all visible content (including content added by themes and apps), translate it, and serve each language on its own URL.
ConveyThis is in the third group. You add it to your site with a plugin (for example on WordPress or Shopify) or one script tag, and it:
- translates the site automatically into any of 210 supported languages as a first draft;
- lets you and your team edit any sentence in context with a visual editor, and assign team roles to reviewers;
- applies a glossary so brand and product terms are always translated (or left alone) the same way, and a translation memory so approved translations are reused;
- serves each language on its own URL (subfolders, subdomains or a
?langparameter), adds hreflang tags automatically, and translates page titles, meta descriptions and JSON-LD structured data; - imports existing translations from CSV or TMX files, which helps if you are moving from another tool.
That covers the technical base and the first draft. The cultural adaptation, keyword research and review described above are still your job; the tool makes them faster but does not do them for you. See how ConveyThis approaches translation quality and what it does for multilingual SEO.
Content localization strategy: where to start this week
A realistic first week looks like this:
- Open Search Console, filter by country, and list the two markets where you already get impressions in English but have no local content.
- Write a one-page glossary and style guide for one of those markets.
- Localize your five highest-value pages for that market (home, pricing, top product or service pages), have a native speaker review them, and publish them on their own URLs with hreflang.
Then measure for 60 to 90 days before expanding. For a longer planning framework, read our content localization strategy guide.
FAQ
What is the difference between content localization and translation?
Translation converts text from one language to another. Content localization includes translation but also adapts everything else a local reader would notice: currency, dates, units, images, examples, tone, legal details and search keywords.
What does a content localization specialist do?
They adapt content for a specific market: reviewing translations for accuracy and tone, replacing cultural references, checking formats and compliance, researching local keywords and maintaining the glossary and style guide.
Is machine translation good enough for content localization?
It is good enough for a first draft and for low-traffic content. For pages that drive revenue or trust, a fluent reviewer should edit the machine output and handle the cultural and SEO adaptation that translation alone does not do.
Does content localization help SEO?
Yes, when each localized version has its own URL, localized titles and meta descriptions, local keywords and correct hreflang tags. That lets search engines index each version and show it to searchers in that language or country.
How much of my website should I localize?
Start with the pages where purchase decisions happen, then extend. Many sites localize their top pages deeply and use reviewed machine translation for the rest.
Create a ConveyThis account to translate your first pages, then use the steps above to turn that translation into a localized site.