What is backlinks:
Backlinks are incoming links to a webpage.
When a webpage links to any other page, it’s called a backlink. In the past, backlinks were the major metric for the ranking of a webpage. A page with a lot of backlinks tended to rank higher on all major search engines, including Google. This is still true to a large extent.
Here is a glossary of common terms related to backlinks that you should know:
Link Juice: When a webpage links to any of your articles or your website’s homepage, it passes “link juice”. This link juice helps with the ranking of the article, and also improves the domain authority. As a blogger, you can stop passing link juice by using a no-follow tag.
No-Follow Link: When a website links to another website, but the link has a no-follow tag, that link does not pass link juice. No-follow links are not useful concerning the ranking of a page as they do not contribute anything. In general, a webmaster uses the no-follow tag when he/she is linking out to an unreliable site.
Do-Follow Link: By default, all the links that you add to a blog post are do-follow links and these pass link juice.
Linking Root Domains: This refers to the number of backlinks coming into your website from a unique domain. Even if a website has linked to your website ten times, it will only be considered as one linked root domain.
Low-Quality Links: Low-quality links are links that come from harvested sites, automated sites, spam sites, or even porn sites. Such links do far more harm than good. This is one reason you should be careful when buying backlinks.
Internal Links: Links that are going from one page to another within the same domain are called internal links. The process itself is referred to as internal linking or interlinking.
Anchor Text: Text that is used for hyperlinks is called anchor text. Anchor text backlinks work great when you are trying to rank for particular keyword