| https | Hypertext Transfer Protocol Secure uses a Secure Sockets Layer (SSL) to encrypt data transferred between a website and web browser. HTTPS is a minor Google ranking factor. |
| adwords keyword planner | Tool for estimating website traffic, competition, advertising costs and other factors of keywords based on match type. Replacement of the Adwords Keyword Tool. |
| h6 | The heading element in HTML defines a structure for headings in a document. Starting with H1 as the most important heading, descending to H6, heading tags have been a standard part of HTML since HTML 2.0. |
| return on investment | (ROI) A measurement of the benefit or profit derived from an investment. The formula for ROI is (cost / revenue). |
| google pigeon update | The name (given by the SEO industry, not Google) of a significant Google local search update launched July 24, 2014. The goal of Pigeon was to improve the accuracy and relevance of local searches by leveraging more traditional Google ranking signals and improving distance and locating ranking parameters. |