What are the major role of title tag to improve search engine optimization ?

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What are the major role of title tag to improve search engine optimization and website conversion ?

Having a strong, relevant, clickable title can have a major impact on rankings, click-through rates and overall traffic numbers to your e-commerce business. The title tag is an HTML title element critical to both SEO (Search Engine Optimization) and user experience that is used to describe the topic and theme of an online document

Meta tags are effective factor of on page SEO. If you used meta tags effectively so definitely you will get some good results. Meta tags will affect on your rank.

Any websites title tag define all about the sites content and helps in ranking for the relevant search.. it is basically a group of main targeting keywords..

Make sure that the same word is not repeated more than twice
Avoid the same set of title tag for every web page. Each should be unique based upon the content of the web page.