Search Engine Optimization (SEO) is a process of optimizing a website to improve its visibility and ranking on search engine results pages. It involves various techniques and strategies to increase organic (non-paid) traffic from search engines. SEO focuses on understanding search engine algorithms, keyword research, on-page optimization, link building, and content creation to enhance a website's online presence and attract relevant visitors. SaS (Software as a Service) refers to the delivery of software applications over the internet on a subscription basis, eliminating the need for users to install and maintain the software locally.