Visitors forgive a lot, but not feeling like an afterthought. These are the localization failures we see most often in audits — each one cheap to prevent and expensive to ignore.
Machine-translating legal and safety copy
Terms, privacy notices, dosage instructions and financial disclaimers need human review, always. Lock these strings in your glossary workflow so automation drafts them but never publishes them unsupervised.
Forgetting layout expansion
German runs ~30% longer than English; Chinese UI needs breathing room of a different kind. Review translations in the real layout — overflowed buttons and clipped headlines scream “we didn't check.”
Hard-coding dates, currencies and units
12/03 means March in Berlin and December in Boston. Localize formats, currencies, address fields and measurement units alongside the words, and test checkout with a local eye.
Translating idioms literally
Wordplay rarely survives the crossing. Flag slogans and jokes for transcreation — rewriting the idea for the market — instead of word-for-word translation.
Launching and abandoning
The most common mistake: a heroic launch followed by silence while the English site evolves. Stale translations rot trust faster than no translation at all. Automate sync so every edit flows through, then review the delta weekly.
Avoid these five and you're ahead of most of the web. Your international visitors won't notice the localization — which is exactly the point.