After having expert SEO service and ranking of websites, you need to continue with the service. It would help retain the top rank you have gained online. Digital marketing has an evolving nature, and there is a change in pattern on how the audience is targeted and gets to know about your brand’s existence online. To build authority in a niche and protect brand image and online reputation, it is advisable to continue incorporating professional help from SEO. To stay ahead of the competition and keep up with the evolving nature of algorithms, SEO is necessary, and cannot afford an online presence without it.