There is no time to right time for SEO because you should every time SEO. Search engine optimization, or SEO, is a way to increase the visibility of your website on search engines like Google and Bing. It is an ongoing process that can take time to fully implement, but once it’s done correctly, it can lead to increased traffic and sales for your business. When should you use SEO? The best time to start with SEO is when you have a new website. If you already have an established website and want to increase its visibility then you can also implement SEO techniques.