| server log files | Files generated by a server and which contain a list of activities by websites and services in it. |
| top level domain | end of a given web address. Like .com |
| hypertext transfer protocol | (HTTP) The protocol used to communicate between servers and web browsers. Data is sent from a websites server to a users browser. |
| behavioral targeting | Directing ads to people who are more likely to engage with them based on past behaviors like recent purchases, website visits, and searches. Much of this is possible through cookies. |
| panda update | Google updated its algorithm in 2011 to include a search filter designed to stop websites with poor quality content from making their way into its top search results. This update was called Panda. |
