Many SEO agencies will tell you that it takes 4 to 6 months to start seeing results. That’s generally accurate, but bear in mind this is when you start seeing results, and SEO results grow over time. Whatever results you’re getting at 6 months should be considerably less than what you’re getting at 12 months. Ref: https://www.forbes.com/sites/joshsteimle/2015/02/07/how-long-does-seo-take-to-start-working