| google mobile first indexing | 2017 will see Google experiment with preferring mobile versions of websites when it comes to indexing and ranking. Thus a poorly configured mobile site might negatively impact your search engine standing. |
| boolean operators | Using boolean search operators it is possible to connect search words together to broaden or narrow a set of results. The three basic boolean operators are AND, OR and NOT. By default however search engines will usually apply AND for each part of a query unless specified otherwise. |
| blog farm | Noun phrase. A group of blogs operated by a single person or group that are populated by software, usually RSS-feed scraping scripts. Used for link building, blog farms are created by special software that installs popular blogging software on multiple domains and hosting accounts. Sometimes confused with links farms (q.v.). |
| session | The period of time a user is actively engaged with your website. |
| manual actions | Penalties that Google imposes on websites engaging in practices it does not condone. |
