What is a backlink?
A backlink is a hyperlink on someone else’s website that points to yours. Despite years of algorithm changes, backlinks remain one of Google’s strongest ranking signals heading into 2026.
Google’s March 2026 core update continues to reward pages with high-quality inbound links, but the bar for what counts as “quality” keeps rising. SpamBrain, Google’s AI-powered spam detection system, now flags suspicious link patterns in real time — meaning manipulative link schemes can trigger algorithmic devaluation in minutes rather than months.
The bottom line: backlinks still work, but only when they come from genuinely authoritative, topically relevant sources that link to you because your content is worth referencing.
See also: Index Backlinks Quickly: 13 Things to Do Today
Why backlinks still matter
Think of backlinks as endorsements. When a respected industry publication or a well-known blog links to your page, it tells Google two things: your content is trustworthy, and it’s relevant to that topic. This is why pages with strong backlink profiles consistently outrank pages without them, even when the on-page SEO is comparable.
But here’s what’s changed. Google has gotten much better at distinguishing earned links from manufactured ones.
The March 2026 core update, along with the March 2026 spam update (which Google completed in just 24 hours — one of the fastest ever), specifically targeted manipulative link schemes, private blog networks (PBNs), and scaled link-building tactics. If your strategy relies on buying links or swapping them in bulk, you’re playing a game with rapidly diminishing returns.
What works instead is building genuine authority. Create original research that others cite. Publish data-driven content. Develop tools or resources that naturally attract references. These “linkable assets” are the most sustainable path to a strong backlink profile because they earn links organically — exactly the kind of signal Google wants to reward.
How backlinks work in practice
Every backlink passes what SEOs call “link equity” (sometimes called “link juice”) to the page it points to. But not all links are equal.
A dofollow link from a high-authority site in your niche carries far more weight than dozens of nofollow links from unrelated directories. The factors that determine a backlink’s value include the linking site’s domain authority, the topical relevance between the two sites, the anchor text used, and where the link sits on the page. Editorial links within content are worth more than footer or sidebar links.
Modern link building also intersects heavily with digital PR and content marketing. Brands that publish original surveys, industry benchmarks, or compelling data visualizations tend to accumulate backlinks naturally because journalists, bloggers, and other content creators need credible sources to reference.
This approach fits well with Google’s E-E-A-T framework (Experience, Expertise, Authoritativeness, Trustworthiness), which now weighs real-world experience and demonstrated expertise more heavily than ever.
Real-world examples
Original research as a link magnet: HubSpot’s annual “State of Marketing” report consistently earns thousands of backlinks because it provides proprietary data that marketers across the industry cite in their own content. The report itself becomes a linkable asset that drives organic link acquisition year after year.
Tool-based link building: Ahrefs offers a free backlink checker tool that attracts links from SEO blogs, marketing guides, and educational resources worldwide. By providing genuine utility at no cost, they earn high-quality editorial backlinks without needing to ask for them.
Digital PR campaigns: When a SaaS company publishes a study revealing that 73% of B2B buyers now use AI tools during their purchasing research, industry publications pick it up and link back to the original source. This earns contextual, high-authority backlinks while also building brand visibility.
Backlink FAQ
Are backlinks still important for SEO in 2026?
Yes. Google’s own Search Liaison has consistently confirmed that links remain a core ranking signal. The March 2026 core update reinforced this — pages with strong, natural backlink profiles continued to perform well, while those relying on manipulative link tactics saw traffic drops of 30–70% in some cases.
What’s the difference between dofollow and nofollow backlinks?
Dofollow backlinks pass link equity directly to the linked page, positively influencing its search rankings. Nofollow backlinks include a rel=”nofollow” attribute that tells search engines not to pass equity.
However, since 2019, Google treats nofollow as a “hint” rather than a directive, meaning some nofollow links may still carry value. A healthy backlink profile includes a natural mix of both.
How many backlinks do I need to rank?
There’s no magic number. What matters more is the quality, relevance, and diversity of your links. A single backlink from a high-authority, topically relevant site can outweigh hundreds of links from low-quality sources. Focus on earning links from sites that your target audience actually reads and trusts.
What are the best tools for monitoring backlinks?
The leading tools in 2026 include Ahrefs, Semrush, Moz Pro, Majestic, and Google Search Console (free). These platforms help you track new and lost backlinks, assess link quality, identify toxic links, and find opportunities to earn new ones. Most SEO professionals use at least two of these in combination.
Can bad backlinks hurt my site?
Yes. Spammy or manipulative backlinks can trigger Google penalties, especially with SpamBrain’s real-time detection capabilities. If you discover toxic backlinks pointing to your site, you can use Google’s Disavow Tool to tell Google to ignore them.
Regular backlink audits are an important part of maintaining a healthy SEO profile.
