This is a type of tag that tell’s the search engine what language the page is using. This allows search engines to be able to place them on the right search results page. This tag prevents pages of a different language to appear on the wrong search results pages.
Sean Si is a Filipino motivational speaker and a Leadership Speaker in the Philippines. He is the head honcho and editor-in-chief of SEO Hacker. He does SEO Services for companies in the Philippines and Abroad. Connect with him at Facebook, LinkedIn or Twitter. Check out his new project, Aquascape Philippines