Below you will find some tips regarding how to optimize a multilingual site so it is found on search results for multiple languages. The instructions are written for a bilingual site but they also apply to sites with three or more languages as well.
1. Choose one language as the main language, which should be the language of the site's home page. Our tips will help with both languages in regards to SEO but will help the main language more than the secondary.
2. Search engines strongly recommend to only use one language per page. Make sure not to include multiple languages within text on the page, an image with file names, titles, and descriptions, and keywords in more than one language.
3. It is best to link each corresponding page instead of having one universal link. For example, the About page in English should link to the About page in Spanish, rather than the Home page in Spanish. Instead of having a row of flags that appear on all pages of the site and link to every language's Home page, it is better to have a row of flag buttons that appear several times, one time per page and link to the corresponding pages.
4. To help build SEO power to each language separately, you should consider adding external links from other websites that have the same language. For example, a Spanish page on Wix is recommended to only have links to exterior websites in Spanish.