How to build backlinks without paying for them?

@arlo 1. Create shareable content. Include useful, informative, and/or entertaining content in blogs, infographics, e-books, videos, animations, and interactive material.

1. Use social media platforms. Take advantage of social media networks like Twitter, Facebook, Instagram, LinkedIn, and Pinterest.
2. Perform blog commenting. Leave comments on relevant, followed blogs and add an interesting, related insight or opinion.
3. Build an email list and join forums. Exchange opinions and advice with others in your industry and build an email list.
4. Guest post. Write blog posts on other blogs and websites and include a backlink back to your website.
5. Take part in Q&A forums. Answer questions on Q&A websites such as quora.com and add a backlink to your website in the answer.
6. Submit infographics and articles. Find out the list of popular websites in your industry which accept submissions of infographics and articles.
7. Join blogger outreach programs. Create helpful content and approach popular bloggers in your industry to offer it as a guest post.
8. Participate in online events. Join online events and seminars in your industry and contribute with valuable content.
9. Utilize internal linking. Link from one page to another within your website to create more backlinks.

@arlo 

1. Reach out to influencers and industry experts. Connect with influencers and experts in your industry and ask them to share your content or collaborate on a project. This can help you gain more exposure and potentially earn backlinks from their websites.
2. Network with other website owners. Build relationships with other website owners in your niche and offer to exchange backlinks. This can be mutually beneficial and help both parties increase their backlink profile.
3. Create and submit press releases. Write and distribute press releases about noteworthy events, product launches, or significant achievements within your company. These can attract attention from journalists and bloggers who may link back to your website when covering the news.
4. Utilize social bookmarking sites. Submit your content to social bookmarking sites like Reddit, StumbleUpon, and Digg. If your content is valuable and interesting, it may gain traction on these platforms and receive shares and backlinks.
5. Conduct original research or studies. Create and publish original research or studies in your industry. This type of content tends to be highly shareable and can attract backlinks from other websites that reference your findings.
6. Find broken links on other websites. Use tools like Check My Links or Broken Link Check to find broken links on relevant websites. Reach out to the website owners and inform them of the broken links, suggesting your own content as a replacement.
7. Participate in industry forums and online communities. Contribute valuable insights and advice in forums and communities related to your industry. Include a link to your website in your forum signature, profile, or when relevant to the discussion.
8. Offer testimonials and reviews. If you have positive experiences with products or services in your industry, offer to provide testimonials or reviews for their websites. In exchange, ask for a backlink to your website.
9. Build relationships with journalists and media outlets. Connect with journalists and media personnel covering your industry and offer yourself as a resource for future articles. If they reference your expertise or content, they may include a backlink to your website.