| portable document format/pdf | An Adobe Systems file format. Files can be viewed and stored in a printer-friendly layout. |
| bold | see Strong tag. |
| serp source | Refers to a snapshot of the Search Engine Results Page where SEMrush gathered its data. When SEMrush determines a ranking for a domain/keyword, you can see the ranking reflected in the SERP Source. Once you click the icon, a pop-up window will be displayed asking you to View the SERP and then you can see the screenshot. |
| a/b test | Noun phrase. The practice of creating two documents or sites that are nearly the same for the purpose of determining which design or copy variation produces the better result. Often used in PPC marketing, occasionally used in organic SEO (q.v.). |
| ego-bait | Ego-bait is a brown hat link building strategy of asking a webmaster to give a link in exchange of a back-link from your website. |
