| yandex | The most popular search engine in Russia, Yandex was founded September 23, 1997 by Arkady Volozh and Ilya Segalovich. |
| tsetsb | Acronym. The Search Engine That Spam Built. A pejorative name for Google which became immensely popular with the SEO community after people realized the link farms they developed for Inktomi worked better on Google. Sometimes revived when people discuss the MFA/SpamAd issues and the click fraud controversy. |
| search engine xml sitemap | A code-level file that assists search engines in locating and tracking your pages and lets them know how often they should check your site for updates. |
| historical data | The data that allows you to perform research on keywords and domains from previous months. Domain Analytics and Keyword Analytics historical data goes back to January 2012. PLA historical data goes back to September 2013. Traffic Analytics historical data goes back to April 2016. |
| ugc | User generated content is a source of content for social media, wikis and blogs, content created by the actual user himself. |
