Level: 2
| English | OPTIMIZATION |
| Spanish | OPTIMIZACIÓN |
| German | OPTIMIERUNG |
| French | OPTIMISATION |
| Netherlands | OPTIMALISATIE |
| Italian | OTTIMIZZAZIONE |
| Russian | ОПТИМИЗАЦИЯ |
| Portuguese | OTIMIZAÇÃO |
| Swedish | OPTIMERING |
| Danish | OPTIMERING |
| Norwegian | OPTIMALISERING |
| Finnish | OPTIMOINTI |
| Turkish | OPTİMUMLAŞTIRMA |
| Polish | OPTYMALIZACJA |
| Greek | |
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| Czech | OPTIMALIZACE |
| Lithuanian | OPTIMIZAVIMAS |
| Latvian | OPTIMIZĀCIJA |
| Estonian | OPTIMEERIMINE |
| Korean | |
| Hungarian | OPTIMALIZÁLÁS |
| Romanian | OPTIMIZARE |
| Spanish(LA) | OPTIMIZACIÓN |
| Portuguese(Br) | OTIMIZAÇÃO |
| Belarusian (be) | |
| Bulgarian (bg) | ОПТИМИЗАЦИЯ |
| Ukrainian (uk) | |
| Serbian (sr) | |
| Croatian (hr) | SEO OPTIMIZACIJA |
| Slovak (sk) | OPTIMALIZÁCIA |
| Slovenian (sl) | OPTIMIZACIJA |
| Arabic (ar) | |
| Hebrew (he) | אופטימיזציה |
| Thai (th) | |
| Indonesian (id) | |
| Malay (ms) | |
| Philipines (tl) | |
| French(Ca) | OPTIMISATION |
| ENGLISH(UK) | OPTIMIZATION |