| alt tags | HTML code that enables you to tell the search engines what words to associate with an image. |
| 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. |
| googlebot | How major search engines like Google and Bing crawl the web; their crawlers or spiders. |
| srcset | Like responsive design for images, SRCSET indicates which version of the image to show for different situations. |
| paid listings | Listings that search engines sell to advertisers, usually through paid placement or paid inclusion programs. The opposite of organic listings, which are not sold. |
