Backlinks are one of the key features of SEO. They boost your site 

Here are Some different types of backlinks,
ranging from the most beneficial to those you can optionally choose

1) Editorial backlinks

Editorial mentions that refer to your site
and include a link placed within relevant, high-quality content make for the ideal backlink.

Commonly, editorial backlinks are created
when your own content is cited as the source of specific information (such as an article or infographic), when a company representative is quoted or interviewed, or when your site is included in a link roundup on a particular topic.

To attract editorial backlinks, create evergreen content that demonstrates your status as To attract editorial backlinks, create evergreen content that demonstrates your status as a thought leader, such that your site and
your brand earn acclaim as a go-to resource for interviews and industry insight.

 Create
engaging, shareable content that has the legs to go viral. To build out your content strategy, leverage SEO tools capable of recognizing popular keywords and topics that competitors have been successful with but your site has yet to cover.

2) Guest blogging backlinks

When providing well-established sites with guestposts, it's often possible to include an editorial backlink to your own site. 

Practicing guest blogging outreach to solicit valuable sites for
these opportunities should be a key piece of just about any SE0 strategy.

3) Backlinks in business profiles

Creating digital profiles for your brand on
business listing sites, social media, industry
directories, and review sites most often comes with the opportunity to post a backlink (or a few).
Search engines view these entries as evidence that a site is well established.

4) Backlinks from webinars
Webinars (and recordings of them) offer
particularly valuable content for sites to link to Sites will often embed wehinars in their to.
 Sites will often embed webinars in their
own pages along with a link and mention ofyour brand as well. 
Use tactics similar to blog promotion to achieve these backlinks: sites you
target for guest blogging may also want to add your webinar as a resource.

5) Free-tool backlinks
Offering a valuable tool for free is another
strong method of earning both attention and backlinks that have a deep and long-lasting impact on SEO. 
This can mean creating a simple-but-useful asset, such as a cost calculator valuable to those in your industry, or
providing a lite version of a paid tool you offer.

To encourage backlinks, promote the tool with sites that have a similar audience to your own (using SEO tools to uncover them), as well as your guest blogging site targets.


6) Guest post bio backlinks

If a site that accepts guest blogging doesn't allow backlinks within the content, it usually will do so within the author's bio. Even when outside of editorial content, these backlinks still have a positive impact on SEO.

7) Badge backlinks

One clever technique for establishing backlinks is to come up with a badge to award to other brands as recognition for their status or achievement in some capacity. 
When those sitesproudly post the badge on their sites, you get a link back to your own. Again, you'll want tomake deft use of SEO tools to recognize sites with similar audiences to yours, in order to determine targets for your badge program.
8) Comment backlinks

Posting genuine and relevant commentary on content and including a backlink - is usually acceptable if it adds value to the conversation.
However, if executed in a spammy manner, this technique can end up having a negative effect on your reputation with search engines.
 Be careful not to overdo it.

9) Paid Links

Search engines are built to assess your site's value based on its genuine, earned popularity with other sites. Google warns that buying and selling links can negatively affect a site's placements in search rankings. 
When you buy links in pursuit of an SEO advantage, you don't get what you pay for.

10) Low-quality or irrelevant directory links
Creating profiles in directories that aren't
trustworthy and respected (or in those that
simply aren't related to your brand) can be
viewed as spam and harm your SEO efforts.