Google's Secure Search update in 2014 brought significant changes to SEO techniques. It required HTTPS for all searches and stopped passing keyword data to websites. This forced SEO strategies to shift focus to page-level optimization and metrics like traffic, conversions, and revenue based on analytics. While ranking is still important, the parameters now include social, mobile, global, and local factors. Rank and performance also need to be measured by device type. Content remains crucial to SEO success, but must now be written in a conversational style, as Hummingbird search interprets full questions instead of just keywords.