| search engine penalty | The negative impact on a sites rankings after a search engine changes its ranking algorithms. |
| file compression | The process of encoding information using fewer bits; reducing the size of the file. There are many different compression techniques. |
| competition-oriented pricing | Competition-oriented pricing is a strategy used in pricing that is dependant on the price of competing products or services. |
| server | The physical computer used to host a sites online files. |
| return on investment | (ROI) A measurement of the benefit or profit derived from an investment. The formula for ROI is (cost / revenue). |