They also know that to extend the organic search results of a site, you have got to adopt successful Off Page and On Page SEO secrets. This tag should be used only once and may be at the very top of the page.
Do not do it in excess since Google can interpret it as Black Hat strategies and penalise you. Do not do it in excess since Google can interpret it as Black Hat methods and penalise you. On page Search Engine Optimisation is completely important to harvest the advantages of having an internet site.