Why Are Backlinks Important for SEO?

Publishing an article on your website makes it available to readers, but that doesn’t mean people have discovered it yet.

Now let’s say someone who runs another website finds your article useful. They mention it in something they’re writing and add a link so their readers can visit your page. That link from their website to yours is called a backlink.

For visitors, the benefit is easy to understand. Someone who has never heard of your website can discover your article simply by clicking that link.

But backlinks can also play a role in Google Search. As Google explores webpages, links can help it discover new pages, understand connections between websites, and gather information used by its ranking systems.

These are different ways a backlink can be useful, and they don’t always produce the same outcome. A link might send interested visitors without improving your rankings, while another might provide information Google can use without bringing many direct clicks.

Understanding those differences is the starting point for seeing why backlinks remain an important part of SEO, without assuming that every new link will make a website rank higher.

How Do Backlinks Help Google Discover New Pages?

When you publish a new article, Google doesn’t necessarily know that it exists immediately.

Google uses automated programs called crawlers to explore webpages. Its main crawler for Google Search is called Googlebot, which can discover new web addresses by following links from pages Google already knows about.

Let’s return to your newly published article. If another website links to it, Googlebot may encounter that link while visiting the other website. The link gives Google another route to your page.

But finding a page is only the beginning.

Discovery Doesn’t Guarantee Indexing or Rankings

After discovering a new web address, Google may crawl the page to examine its content. It can then process the information for possible inclusion in its search index, the large collection of webpages Google can use to produce search results.

Even if the page is indexed, that doesn’t guarantee it will appear prominently when someone searches for a related subject.

These are different steps:

• Discovery: Google learns that the page exists.
• Crawling: Google visits the page and retrieves its content.
• Indexing: Google processes the page and may store it in its index.
• Ranking: Google’s systems determine how relevant and useful indexed pages may be for a particular search.

A backlink can provide a route to the first step without guaranteeing the others.

Your page also doesn’t need an external backlink to be discovered. Google can find pages through internal links or a sitemap, which is a file that helps search engines learn about the pages on your website.

So when we say backlinks help Google discover content, we mean they create additional connections through which Google may encounter a URL. We don’t mean every new backlink causes another indexing event.

How Can Backlinks Help Google Understand a Page?

A backlink can provide information beyond the address it points to.

Suppose a gardening website publishes an article about growing vegetables at home. The writer mentions your guide to growing tomatoes in containers and adds a link using those words.

The clickable phrase, called anchor text, gives readers an idea of what they’ll find. It also helps Google understand the subject of the linked page.

Google’s link analysis systems can use connections between webpages as part of understanding what those pages are about and which may be useful in response to a search.

That doesn’t mean the linked words alone determine how Google understands or ranks your article. The article itself and other available information still matter.

The important point is that a backlink can serve two different purposes for Google: it may help Google encounter a page, and it can provide information about the connection between that page and another website.

Can Backlinks Improve Search Engine Rankings?

Yes, backlinks can contribute to search rankings, but they don’t work like points added to a score every time someone links to your website.

Google uses many ranking systems and signals. Links are part of that process, and PageRank remains one of Google’s core link analysis systems.

PageRank analyzes connections between webpages as one way of understanding their importance. Its modern operation is more complex than Google’s original model, and Google doesn’t provide a public calculation showing how much ranking influence an individual backlink receives.

This distinction matters when interpreting changes in search results.

Suppose one of your articles receives a new backlink, and a week later you notice that its Google ranking has improved.

It’s tempting to credit the new link. But the timing alone doesn’t prove that the backlink caused the improvement. Other pages competing for the same search may have changed, and Google’s systems consider much more than links.

The backlink may have contributed information used in ranking. What you cannot reliably determine from that observation is its exact contribution.

Can Backlinks Bring Visitors Without Improving Rankings?

Absolutely. This is one of the easiest benefits to overlook when discussing SEO.

Consider someone reading a travel article about visiting Japan. The writer includes a link to your guide explaining how to use the trains in Tokyo.

A reader follows the link and arrives on your website.

That visit didn’t come from a Google search result. The person discovered your guide while reading another website.

In web analytics, visits arriving through links on other websites can be recorded as referral traffic.

A backlink can therefore introduce people to your content even when there’s no visible change in its search rankings.

The opposite can also happen. A backlink might receive very few clicks while Google still considers link information as part of its broader ranking systems.

Traffic and ranking influence are not interchangeable measurements. Ten interested visitors arriving through another website tell you something about the usefulness of that referral, but they don’t reveal how much Google values the link for ranking purposes.

Both outcomes matter, just for different reasons.

Do Backlinks Still Matter in 2026?

Yes. Backlinks remain relevant to SEO, although their presence alone doesn’t determine whether a page will rank.

A useful article doesn’t become irrelevant simply because it has few backlinks, and receiving a large number of links doesn’t automatically make its content more helpful.

It’s also possible for a page to rank without backlinks pointing directly to it. Links are not a mandatory entry requirement for appearing in Google Search.

That is why backlinks should be understood as a potential contribution to search performance, rather than something every page must collect in a fixed quantity.

Why Doesn’t Getting More Backlinks Guarantee Better SEO?

If every backlink provided the same ranking benefit, collecting more links would be a straightforward way to improve rankings.

But links can exist for very different reasons.

A food journalist might independently reference your baking guide while explaining how bread fermentation works. Another website might automatically generate hundreds of unrelated pages containing links to your guide.

Simply counting those links would hide an important difference in how they were created and why they exist.

Google’s link-spam policies address links created primarily to manipulate search rankings, including certain paid arrangements, excessive link exchanges, and automated link creation.

Paid advertising and sponsorship are not inherently prohibited, but links associated with those arrangements need appropriate qualification under Google’s guidance.

Nor can backlinks compensate for content that fails to answer what readers are searching for. A link may introduce someone to your page, but it cannot make that page provide information it doesn’t contain.

This is why the usefulness of your content and the reasons other websites link to it remain important. A backlink count alone cannot tell you whether your website is becoming more valuable to readers or more relevant to search results.

What Makes Backlinks Worth Having?

Backlinks can serve different purposes depending on where they appear, who follows them, and how search engines use the information they provide.

Understanding why backlinks are important for SEO means recognizing these different roles rather than expecting every link to accomplish all of them.

The most meaningful links are worth examining for the connections they create, the readers they can help, and the information they provide, not simply because they increase a number in a backlink report.