| link farm | When a group of websites link to each other, usually using automated programs, in the hopes of artificially increasing search rankings. A spam tactic. |
| copy testing | Copy testing is a test carried out on an ad to find out how effective it will be before it becomes public. It factors in key indicators like reactions, consumer feedback, and others to help decide if an ad is effective. |
| auto-generated content | Content that is created programmatically, not written by humans. |
| over-optimization | A shady SEO tactic that aims to please or even trick search engines to rank websites for particular keywords without minding user experience. |
| results page | The page that is displayed after a user enters a search query. Also known as SERP, for search engine results page. |