Originated from Trusted and Authoritative Websites It is always better to get a backlink from a trusted source than a random guy’s website. Google seems to have the same opinion. It’s called ‘Domain Authority’. If the link comes from an authority site, Google considers it to be significant. These links are hard to get, but they are definitely worth it.
Contains Targeted Keyword in the Anchor Text Anchor text can be seen as a part of the link. It is good to have links with anchor text containing the target keyword. However, avoid going overboard with the keyword in the anchor text. Google has a built-in filter in its algorithm called Google Penguin. It can filter out the websites that use black hat strategies to build links. It focuses on websites that create backlinks matching the anchor links.
Is a DoFollow Link Search engines like Google tend to ignore links that come with a ‘nofollow’ tag. In simple words, these links aren’t considered valuable by the search engines. Luckily, a large number of links on the internet are ‘dofollow’ links. Some examples of nofollow links are; Blog comments, Paid advertisements, and Press releases. Even though they are nofollow, they are a great help when it comes to SEO.
Is Related to the Targeted Site Google wants to know if a website linking to another one is related or not. This does make sense. For instance, someone posts an article about running a marathon. Google would like to emphasize more on links that come from a site about fitness, running, or marathons instead of about unicycles, fishing, or digital marketing.
Comes from a Previously Unlinked Domain For instance, there is a backlink for website A, and it links to you time and again. The question is will the second, third, and fourth links be as powerful as the first one? No, it won’t. Links from the same website is going to have diminishing returns. So, it is better to get 50 links from 50 different websites instead of 100 links from the same one.