| alt tags | HTML code that enables you to tell the search engines what words to associate with an image. |
| seasonal trends | Refers to the popularity of keywords over time, such as Halloween costumes being most popular the week before October 31. |
| extensible hypertext markup language | XHTML extends HTML to include XML formatting. |
| rich cards | Rich cards are a new type of mobile-optimised search result format developed from rich snippets. |
| mobilegeddon | When everyone though the sky would fall when Google switched to mobile first indexing. |
