| root domain | The root domain of a website is the shortest possible formation of a domain name/URL, not including a subdomain. For example website.com is the root domain of http://www.website.com/. |
| file compression | The process of encoding information using fewer bits; reducing the size of the file. There are many different compression techniques. |
| non-branded keyword | Keywords that do not contain a brand name. Most SEO campaigns have a strong focus on improving website traffic from non-branded keywords. |
| mobile speed | The amount of time taken for a web page to fully load on a mobile device. Search engines place increasing importance on mobile speed, with Google having announced it as a ranking factor. |
| blackhat seo | SEO tactics that dont particularly follow the approved guidelines of Google or other search engines. |
