Yes. We’ve tested as much as we could with Chinese words, and we do currently have Chinese users who are using Squirrly SEO to rank their websites on Google.
You can use the Keyword Research tool from Squirrly SEO to search for keywords in 140 countries.
You can use Squirrly SEO plugin in all countries and all WordPress languages. Our Bulk SEO feature works with all WordPress popular multilingual plugins and you can optimize the SEO Snippet in any language.