SEO Backlinks Digital Marketing

What Is Backlink? How Do Backlinks Affect SEO?

June 12, 2025

Backlinks are a core factor in how search engines determine a website’s authority and ranking. In this guide, we’ll cover everything you need to know about backlinks—from what they are to how they influence your site's SEO.

Pro Tip!

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Table of Contents

A backlink, also known as an "inbound link" or "incoming link," is a link from one website to another. Search engines like Google use backlinks as a signal of trust and credibility.

“A backlink is essentially a vote of confidence from one site to another.”

Dofollow Backlinks

Dofollow links pass link equity and are the most valuable type for SEO.

Nofollow Backlinks

Nofollow links don’t pass link juice but are still useful for diversity and traffic.

UGC and Sponsored Tags

These are specific tags introduced by Google to identify user-generated content and paid links.

  1. Create high-quality, shareable content.
  2. Use guest blogging on niche-relevant sites.
  3. Reach out with personalized email pitches.
  4. Get listed in online directories and roundups.
  5. Use HARO (Help A Reporter Out) to get media mentions.

Conclusion

Backlinks are a critical part of any SEO strategy in 2025. Focus on earning high-quality, relevant links from trusted sources. Avoid spammy tactics and prioritize building real relationships for long-term SEO success.

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FAQs

What is a backlink in SEO?

A backlink is a link from one website to another that helps search engines evaluate the trustworthiness of the receiving site.

How do backlinks affect search rankings?

High-quality backlinks can improve a site's search visibility, traffic, and authority, directly impacting ranking positions.

Are all backlinks beneficial?

No. Only quality backlinks from relevant, authoritative sites are valuable. Low-quality or spammy links can harm your SEO.