I choose it that this implies that I ought to have canonical URL while in the English Variation pointing on the Thai Model (and, Thai version pointing to alone). Canonicals really should usually point to essentially the most authoritative Model of the webpage. It's not the case with redirecting URLs. https://infopagex.com/story4150723/top-guidelines-of-automatic-hreflang-tags-canonical-tags-all-pages-seo