SEO certifications are offered by a lot of marketing agencies, and educational websites nowadays. These platforms design tests and quizzes to test your knowledge and skills about SEO. Having an SEO certification opens up a lot of opportunities in the website development and content writing world. These platforms design three types of assessments. You have to pass these tests by a minimum of 60% to attain a certification in SEO. Many SEO courses and websites are well known for their certifications. Hence, taking these courses is very beneficial in the long term.