| search engine spider | Such as Googlebot or Yahoo Slurp. See Crawler. |
| rich media | Any ad that utilizes advances features like video, audio, or other non-text elements. |
| bert | BERT is a method of natural language processing (NLP) pre-training named Bidirectional Encoder Representations from Transformers: aka BERT. In October 2019 Google announced that they were using BERT in Google Search. |
| call tracking | The process of tracking online marketing at the point at which it may move to a phone call. |
| search engine | An information retrieval program that searches for items in a database that match the request input by the user. Examples: Google, Bing, and Yahoo. |