If you are new to SEO, one of the first questions you will encounter is what are SEO backlinks and why do they matter so much. It is a fundamental question. And the answer shapes almost everything about how search rankings work.
At Relevant Links, we work with businesses at every stage of their SEO journey. Some come to us with years of experience. Others are just beginning to understand how search engines work. Regardless of where you are starting from, understanding what are SEO backlinks is essential before building any kind of link strategy.
This post gives you a clear, thorough breakdown of what backlinks are, how they work, why they matter, and what makes some backlinks far more valuable than others.
The Basic Definition of a Backlink
A backlink is a hyperlink on one website that points to another website. When website A publishes an article and includes a link to website B, that link is a backlink for website B. It is also called an inbound link or an incoming link.
Backlinks have been a core part of how the internet works since the beginning. They are how web pages connect to one another. They are how users navigate from one resource to another. And they are one of the primary ways search engines evaluate the credibility of a website.
Understanding what are SEO backlinks means understanding this foundational role. Every link that points to your website is a signal. Search engines collect and interpret those signals to decide how your pages should rank.
How Search Engines Use Backlinks to Rank Pages
Search engines were built on the idea that links represent trust. When one website links to another, it is essentially recommending that content. The more recommendations a page receives from credible sources, the more trustworthy it appears to search engines.
Google’s original algorithm, PageRank, was built entirely around this concept. It measured the quantity and quality of links pointing to a page and used that measurement to determine rankings. While the algorithm has become far more sophisticated since then, links remain one of the most heavily weighted ranking factors.
This is the core of what are SEO backlinks in practical terms. They are votes of confidence that search engines use to determine which pages deserve to appear at the top of search results. More quality votes mean higher rankings.
Relevant Links helps clients earn those votes from the right sources. We understand how search engines interpret links and we build strategies around that understanding.
The Difference Between a Followed and a Nofollowed Link
Not all backlinks pass the same value to your website. One important distinction is between followed and nofollowed links.
A followed link is a standard hyperlink. It passes what is known as link equity or link juice from the linking page to the linked page. This contributes directly to your rankings and domain authority.
A nofollowed link contains a special tag in its code that instructs search engines not to pass link equity. These links were introduced to combat spam. They are commonly used in blog comments, paid placements, and user-generated content sections.
When people ask what are SEO backlinks in terms of value, followed links are generally what they are referring to. No followed links are not worthless. They can drive referral traffic and contribute to a natural-looking link profile. But followed links are the ones that directly influence rankings.
Relevant Links focuses on earning followed links from authoritative sources. This is where the real ranking impact comes from.
What Makes a Backlink High Quality
Understanding what are SEO backlinks also means understanding the difference between a high quality link and a low quality one. Not all backlinks are created equal. The source, context, and placement of a link all influence how much value it provides.
A high quality backlink comes from a website that is authoritative, relevant, and trusted by search engines. It is placed naturally within content that is related to the topic of the linked page. It uses anchor text that makes logical sense. And it comes from a domain that has a clean history with no spam associations.
A low quality backlink comes from a website with little authority, no relevance to your industry, or a history of manipulative practices. These links provide little ranking benefit and can actively harm your profile if they accumulate in large numbers.
Relevant Links evaluates every link opportunity against these quality standards before pursuing it. We are selective by design because selectivity is what produces results.
The Role of Relevance in Backlink Value
One of the most important factors in backlink value is relevance. A link from a website that covers the same topics as yours sends a much stronger signal than a link from an unrelated niche.
Search engines understand context. They analyze the content of the linking page and the overall theme of the linking website. When both align closely with your own content, the link carries more weight.
This is why relevance is central to how Relevant Links approaches every campaign. We do not pursue links from just any high-authority website. We pursue links from websites that are genuinely relevant to our clients’ industries and audiences.
When businesses ask what are SEO backlinks that actually move rankings, the answer almost always involves relevance. Quality and relevance together are what produce lasting improvements in search performance.
How Anchor Text Affects Backlink Value
Anchor text is the clickable text that forms a hyperlink. It plays an important role in how search engines interpret a backlink. The words used as anchor text give context about what the linked page covers.
For example, a link with the anchor text “link building strategies” pointing to a page about link building sends a clear topical signal. It reinforces the relevance of that page for related search queries.
However, over-optimizing anchor text can backfire. A profile filled with identical exact-match anchors looks manipulative. Natural link profiles include a variety of anchor types. These include branded terms, partial match phrases, and generic anchors.
Relevant Links manages anchor text carefully across every campaign. We build profiles that look natural while still reinforcing the topical relevance of each placement. This balance protects our clients while maximizing the impact of every link we secure.
Internal vs External Backlinks
When exploring what are SEO backlinks, it helps to understand the distinction between internal and external links. Both play a role in SEO but in different ways.
Internal links are links that connect pages within the same website. They help search engines understand the structure of your site and distribute authority across your pages. They also help users navigate to related content.
External backlinks are links from other websites pointing to yours. These are the links that carry the most weight in terms of building domain authority and improving rankings. They represent third-party validation that search engines trust.
A strong SEO strategy involves both. Internal linking supports the structure of your site. External backlinks build the authority that makes your site competitive in search results.
Relevant Links focuses on external backlink acquisition. We help clients earn the third-party validation that search engines use to determine who deserves to rank at the top.
Why Backlinks Remain Essential Despite Algorithm Changes
SEO has changed dramatically over the years. Tactics that worked a decade ago can now cause penalties. New ranking factors have emerged. But through every update and every shift, backlinks have remained at the core of how search engines evaluate websites.
The reason is simple. Links are hard to fake at scale when acquired ethically. They represent genuine endorsements from independent websites. And no algorithm has yet found a more reliable signal for determining which content is truly valuable.
This consistency is why understanding what are SEO backlinks remains as relevant today as it was when search engines were first built. The fundamentals have not changed. What has changed is the standard for what constitutes a quality link.
Relevant Links stays ahead of these evolving standards. We monitor how search engines are developing and adjust our strategies to ensure that every link we build holds its value over time.
How Backlinks Contribute to Domain Authority
Domain authority is a metric that reflects the overall strength and credibility of your website. It is influenced heavily by the quality and quantity of backlinks pointing to your site. A strong backlink profile raises your domain authority. A weak or toxic one holds it back.
Higher domain authority means your pages are more likely to rank well across a broad range of search queries. It gives every page on your site a lift. And it compounds over time as more quality links are added to your profile.
This is one of the most important practical answers to what are SEO backlinks in terms of business impact. They are the building blocks of domain authority. And domain authority is what makes your site competitive in search over the long term.
Relevant Links tracks domain authority growth as a key metric for every client. We build link profiles that steadily raise this number and keep it rising consistently.
Getting Started With Backlink Building at Relevant Links
Now that you have a clear understanding of what are SEO backlinks and how they work, the next step is building a strategy to earn them. That is where Relevant Links comes in.
We start every campaign with a thorough audit of your existing link profile. We assess what you have, identify any issues, and determine where the best opportunities lie. From there, we develop a custom strategy built around your industry, your goals, and your competitive landscape.
Our outreach is targeted and relationship-driven. We pursue placements on websites that are genuinely relevant and authoritative. We never take shortcuts that put our clients’ profiles at risk. And we report clearly on every link we build so you always know exactly what is happening.
Relevant Links is built for businesses that are serious about long-term SEO performance. If you are ready to build a backlink profile that drives real rankings and lasting authority, we are ready to help.
Final Thoughts
Understanding what are SEO backlinks is the starting point for any serious SEO strategy. Backlinks are the foundation of search authority. They are how search engines determine which websites deserve to rank at the top. And they are one of the most powerful levers you can pull to improve your visibility in search.
The key is earning the right links from the right sources. Relevance, authority, and consistency are what separate a backlink profile that produces results from one that does not.
Relevant Links helps businesses build exactly that kind of profile. We bring the expertise, the process, and the commitment to quality that effective link building requires. If you are ready to take your SEO performance seriously, Relevant Links is the partner to make it happen. Visit our website at www.relevantlinks.io today to learn more!