Why Do Backlinks Drive SEO?

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Written ByJoe
Updated: July 12, 2026 Published: January 25, 2023
Why Do Backlinks Drive SEO? | Video
7:59

A backlink is a link created when one website links to another. Backlinks, also known as inbound or incoming links, are a crucial component of a holistic SEO strategy. While Google is beginning to de-emphasize the significance of a backlink, they remain important for guiding users to additional, potentially more detailed information.

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The number of authoritative backlinks a website has is considered an indication of its popularity or importance. Search engines use complex algorithms to determine the relevance and authority of a website based on the number and quality of its backlinks. Websites with high-quality backlinks are considered more authoritative and are likely to rank higher in search engine results.

Backlinking can impact SEO in several ways. First, backlinks can improve a website's search engine rankings by indicating the quality and relevance of the content on the linked website. Search engines like Google use backlinks as a way to determine the popularity and authority of a website. The more high-quality backlinks a website has, the more likely it is to rank higher in search engine results.

Backlinking can also drive referral traffic to a website. When users click on a backlink, they are directed to the linked website, which can increase its visibility and drive more traffic.

However, it is not only the number of backlinks that matters but also their quality. Backlinks from low-quality or spammy websites can harm search engine rankings. Search engines like Google have become proficient at identifying low-quality backlinks and may penalize websites with too many. Therefore, ethical link-building and acquiring high-quality backlinks from reputable and relevant websites is essential.

Why Is Google Search Ranking Important?

Google search ranking is a measure of a website's position in the search engine results pages (SERPs). A high ranking is important because it determines the visibility and accessibility of a website in the SERPs. A higher ranking in the search results increases the chances of a website being seen by potential customers, which can increase website traffic and, ultimately, more business. Being ranked high in the search results also improves brand recognition among customers.

So why is that important? The first five results in Google rankings receive nearly 70% of the clicks for a given search. 90% come from the first page. So there is an incentive to rank high for your given search terms. 

Types of Backlinks

Backlinks, also known as inbound links, are links from other websites that point to your website. Several types of backlinks can be classified based on their attributes.

  • Internal backlinks are links that connect one page of your website to another page of the same website. They help organize a website's structure, make it easy for users to navigate, and help search engines understand your content. Internal backlinks are essential elements of topic clusters.
  • External backlinks or Inbound Links are links that connect one website to another website. They are essential for SEO as they help search engines understand the relevance and authority of a website.
  • Dofollow backlinks are links that pass link juice or link equity, which helps increase the link's authority and ranking. These are the most valuable kinds of backlinks for SEO.
  • Nofollow backlinks are links that do not pass link juice or link equity and are mainly used to link to untrusted or low-quality websites. They are often used by website owners to prevent link spamming or to indicate that a link is not an endorsement of the linked website.

Backlinks play a crucial role in SEO as they help search engines understand the relevance and authority of a website. Backlinks can improve a website's search engine rankings by indicating the quality and relevance of the content on the linked website. They also help increase the ROI of SEO.

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How do I Acquire Backlinks?

Acquiring backlinks, also known as link building, is the process of getting other websites to link to your site. This is easier said than done. Sure, you could start emailing site admins of blogs you read, but how efficient is that process? Instead, provide value, and maybe try a few of these strategies to acquire backlinks:

  • The Go-Viral Technique: This technique involves finding popular and high-performing content in your niche and, leveraging the same criteria, creating something even better. Making something better increases the chances of other websites linking to your content.
  • Resource page link building: Find resource pages in your niche and ask the website owner to include your link in the list of resources.
  • Broken link building: Find broken links on other websites in your niche and contact the owner to replace the broken link with a link to your website.
  • Guest blogging: Write articles for other websites in your niche and include a link to your website in the author bio. This is a proven strategy because you can reciprocate with the other site owner, helping increase both sites' relevance and authority.
  • Podcast interviews: Participate in podcast interviews and include a link to your website in the show notes.
  • Unlinked mentions: Find mentions of your brand or website on other websites that don't include a link and reach out to the website owner to ask for a link to be added.
  • Publish "Ultimate Guides": Create comprehensive guides on a specific topic, and reach out to other websites in your niche that could benefit from linking to your guide.

Feel free to go ahead and do disavows even on a domain level. The main purpose is if you've made some bad links yourself and you need to clean it up.

Matt Cutts

Ensure Your Backlinks Are High Quality

It's essential to keep in mind that quality should be the primary focus when acquiring backlinks. Backlinks from reputable and relevant websites are more valuable. Penalties for using black-hat techniques are steep. Make sure to minimize or disavow links to your site that are considered toxic.

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To ensure your backlinks will positively impact SEO and maximize ROI, you should have the following in place:

  • Link diversity: Having diverse backlinks, dofollow and nofollow, from different sources and types of websites can signal to search engines that your website has valuable content acknowledged by various sources.
  • Anchor text: The anchor text of a backlink is the visible, clickable text linked to your website. It is best practice to have a variety of anchor text phrases and to avoid using the exact phrase repeatedly, as it can signal to search engines that the links may be manipulative. 
  • Link quality: It is essential to have high-quality backlinks from reputable and relevant sources. Avoiding low-quality links or links from spam can help prevent penalties from search engines.
  • Ethical link building: Ethical link building is the process of getting other websites to link to your website in a way that is natural and beneficial to both parties.
  • Allow Others to Credit Their Work: Let others showcase your work in their portfolio, and they can include a backlink to your website in return. This will help you to get a backlink from a reputable source.
  • Create shareable content: To generate backlinks to your website, you need to create shareable content. The more people share your content, the more likely you will get backlinks.

Backlinks signal to search engines that other resources on the Web find your content valuable. The more backlinks a website has, the more likely it is to be well-ranked on the SERPs, which improve the indexing and ranking of a website and increase traffic, shining a light on your company's website and bringing you valuable clicks and potential customers. 

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Backlinks & SEO Strategy: FAQ

What is a backlink in the context of SEO?

Popular
A backlink is a hyperlink from one website to another. Evidence shows search engines view these as votes of confidence, indicating a page's authority and relevance. This is because a link from a reputable site implies your content is a valuable resource, which can boost your search rankings.

Are backlinks still an important ranking factor for Google?

Popular
Yes, backlinks remain a vital SEO ranking signal. Evidence shows that links from authoritative sites act as endorsements, indicating your content's quality and relevance. This is because Google's algorithm interprets these links as a sign of trust, which helps improve your website's position in search results.

How do backlinks improve a website's SEO performance?

Backlinks improve SEO by boosting rankings and driving referral traffic. Evidence shows they signal your site's authority to search engines, leading to higher SERP positions. This is because they also generate direct traffic when users click the link, increasing your site's overall visibility and reach.

Is the quality of backlinks more important than the quantity?

Yes, backlink quality is far more critical than quantity. Evidence shows that search engines can penalize sites with many low-quality or spammy links. This is because a single link from a relevant, authoritative source is a stronger signal of trust and value, positively impacting your SEO.

What is the difference between dofollow and nofollow backlinks?

Dofollow links pass authority, or "link juice," to your site, while nofollow links do not. Evidence shows dofollow links are most valuable for SEO as they act as a vote of confidence. This is because the nofollow attribute is used to prevent passing authority to untrusted or paid links.

Can bad or toxic backlinks harm my website's rankings?

Yes, bad backlinks from spammy or low-quality sites can harm your SEO. Evidence shows that Google's algorithms can identify manipulative link schemes and may penalize your website. This is because these toxic links damage your site's authority and trust signals, leading to lower search rankings.
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