Each DoFollow backlink carries domain authority from the referring website, while each link is manually verified for the absence of NoFollow tags.
A detailed report on completed work is provided in the form of a text file listing all sites where your link was placed.
It is preferable to place links within content with relevant anchor text; additional options are available — listed underneath:
First option — write an original post
Second option — content is refreshed via synonym substitution to avoid duplication, since algorithms reward text variation.