If you have ever explored the world of search engine optimization (SEO), you have probably come across the term “nofollow link.” It sounds a bit technical at first, but once you understand what it means, you will realize just how important it is to your overall SEO strategy.
Links are one of the most powerful tools on the internet. They connect websites to each other, help search engines understand relationships between pages, and play a major role in how high a website appears in search results. But not all links are created equal. Some links pass SEO value from one site to another, and some do not. That distinction is exactly what the nofollow attribute is about.
In this article, we will break down everything you need to know about nofollow links – what they are, how they work, why they were created, and how they fit into a smart SEO strategy. Whether you are a blogger, a business owner, or just someone who wants to understand how the web works, this guide is written for you.
Table Of Contents
Understanding Links in SEO: A Quick Foundation
Before we dive into nofollow links specifically, it helps to understand how links work in the broader context of SEO.
When one website links to another, search engines like Google interpret that as a vote of confidence. It is as if the linking website is saying, “Hey, this content is valuable and worth checking out.” These votes – known as backlinks – are one of the key signals that search engines use to determine how trustworthy, relevant, and authoritative a website is.
The more high-quality backlinks a page has, the more likely it is to rank well in search results. This concept is often called “link equity” or “link juice” – the value passed from one page to another through a hyperlink.
Now, here is the important part: not every link passes this SEO value. That brings us to the heart of our topic – the nofollow link.
What Is a Nofollow Link?
A nofollow link is a hyperlink that includes a special HTML attribute called rel=”nofollow”. This attribute tells search engine crawlers not to follow the link and not to pass any SEO link equity to the destination page.
Here is what a standard (dofollow) link looks like in HTML:
<a href=”https://www.example.com”>Visit Example</a>
And here is what a nofollow link looks like:
<a href=”https://www.example.com” rel=”nofollow”>Visit Example</a>
The only difference is the addition of rel=”nofollow” inside the anchor tag. But that small addition has a significant impact on how search engines handle the link.
In simple terms: a nofollow link says to Google, “I am linking to this page, but I am not endorsing it for SEO purposes.” The user can still click the link and visit the page – it works perfectly fine as a navigational tool – but the link does not contribute to the destination site’s search engine ranking.
The History of the Nofollow Attribute: Why Was It Created?
The nofollow attribute was introduced by Google in 2005, primarily to fight comment spam. At the time, bloggers and website owners were being bombarded by spammers who would post hundreds of low-quality comments on blog posts – not because they wanted to contribute to the conversation, but because each comment contained a link back to their own websites.
This was a serious problem. Spammers were gaming the search engine system by artificially inflating their backlink count. Google’s ranking algorithm relied heavily on links as a trust signal, so websites with thousands of spam links were unfairly climbing the rankings.
The nofollow tag gave website owners a way to say, “Yes, I am displaying this link, but I did not personally vouch for it.” When search engines saw the nofollow attribute, they would simply ignore the link in terms of ranking calculations.
Over time, the use of nofollow expanded well beyond blog comments. Today, it is used in a wide range of situations wherever a website does not want to pass SEO value to a linked page.
Nofollow vs. Dofollow Links: What Is the Difference?
You will often hear links described as either “nofollow” or “dofollow.” It is important to note that “dofollow” is not actually an HTML attribute – it is simply the informal term used to describe a standard link that does not have the nofollow tag. By default, every link on the web is a dofollow link unless you specifically add the nofollow attribute.
Dofollow Links
A dofollow link passes link equity – also known as “PageRank” – from the source page to the destination page. When a reputable website links to your page with a dofollow link, it signals to search engines that your content is trustworthy and worth ranking. Dofollow links are the gold standard in SEO because they directly influence how your website ranks in search results.
Nofollow Links
A nofollow link, on the other hand, does not pass link equity. The search engine sees the link, acknowledges it, but does not count it as a ranking vote for the linked page. While this might sound like nofollow links are useless, that is far from the truth – we will explore their hidden value later in this article.
A Simple Analogy
Think of it this way: imagine you are at a job fair and someone hands out a reference letter on your behalf. A dofollow link is like a reference letter where the person says, “I fully endorse this candidate – they are excellent.” A nofollow link is like someone pointing at you and saying, “That person is here,” without necessarily recommending you. You are still visible, but the recommendation carries no weight.
The Three Types of Nofollow-Related Attributes
In September 2019, Google expanded the nofollow system by introducing two additional link attributes alongside the original nofollow tag. Understanding all three helps you use them more precisely.
1. rel=”nofollow”
This is the original attribute, still the most widely used. It signals to search engines that you are not endorsing the linked page. Use it as a general-purpose indicator when you do not want to pass SEO value to an external link.
Example use cases: links in user comments, links in user-generated content, links to websites you do not fully trust, or links added as a precaution.
2. rel=”sponsored”
This attribute was created specifically for paid links – those placed as part of advertisements, sponsorships, or any kind of commercial arrangement. If a company pays you to feature a link on your website, using rel=”sponsored” is the honest and Google-recommended way to disclose that relationship.
Failing to mark paid links appropriately can result in a manual penalty from Google, because buying and selling links that pass PageRank violates Google’s Webmaster Guidelines.
3. rel=”ugc”
UGC stands for User-Generated Content. This attribute is meant for links that appear in content created by your website’s users – such as forum posts, blog comments, product reviews, or community discussions.
Using rel=”ugc” tells Google that the link was added by a user rather than the site owner, which means the site owner is not personally vouching for it. This is particularly useful for platforms with large amounts of community content.
It is also possible to combine these attributes. For example, you might write rel=”nofollow ugc” to indicate that a link is user-generated and that you do not endorse it for SEO purposes.
When and Why Should You Use Nofollow Links?
Now that you understand what nofollow links are, let us look at the most common situations where you would want to use them on your own website.
Paid Links and Sponsored Content
As mentioned earlier, if you are being compensated for placing a link on your site – through a sponsorship, an affiliate arrangement, or a paid placement – you must disclose this using the rel=”sponsored” or rel=”nofollow” attribute. Google considers paid links that pass PageRank to be a violation of its guidelines. If caught, your website could be penalized and see a significant drop in its rankings.
Untrusted or User-Generated Content
If your website allows users to post content – such as comments, forum replies, or product reviews – you cannot always control what links those users include. Someone might paste a link to a spammy or harmful website without your knowledge. By applying nofollow to all user-generated links by default, you protect your site from inadvertently passing authority to untrustworthy sources.
Untrusted External Sources
Sometimes you need to reference a website in your content – perhaps to cite a statistic, critique an argument, or give context – but you do not necessarily want to endorse that site from an SEO perspective. Adding nofollow lets you include the link as a reference without boosting the linked site’s rankings.
Login Pages, Legal Pages, and Internal Admin Links
Some websites add nofollow to internal links that point to pages with no SEO value, such as login forms, privacy policy pages, or admin dashboards. The idea is to prevent search engine crawlers from wasting their crawl budget on these low-value pages. However, Google has noted that PageRank sculpting through internal nofollow links is largely ineffective, so this practice is now considered less important than it used to be.
Social Media Profile Links
Almost all major social media platforms – including Facebook, Twitter/X, Instagram, LinkedIn, and YouTube – automatically add nofollow to all external links shared on their platforms. This is why social media activity does not directly influence your search rankings in the traditional link equity sense.
Do Nofollow Links Have Any SEO Value?
This is one of the most debated questions in the SEO community. For years, the conventional wisdom was simple: nofollow links do not pass PageRank, therefore they have no SEO value. But the reality is more nuanced than that.
Google’s Shift to a “Hint” System
In 2019, Google made an important announcement: it changed the way it treats all three link attributes (nofollow, sponsored, ugc) from hard directives to “hints.” This means Google may still choose to use nofollow links as signals when crawling, indexing, and ranking pages – even though it is not obligated to follow them.
In other words, Google might still crawl a page that is linked to with a nofollow link, and it might even consider that link in its ranking calculations in certain circumstances. While nofollow links still do not pass full link equity the way dofollow links do, they are not entirely invisible to search engines either.
Indirect SEO Benefits of Nofollow Links
Beyond Google’s hint system, there are several indirect ways nofollow links contribute to your overall SEO health.
- Referral traffic: A nofollow link on a high-traffic website can still send thousands of visitors to your site. If those visitors find your content valuable, they may share it, link to it, or become customers. That traffic has real business value, even without the direct SEO benefit.
- Brand awareness: Getting mentioned and linked on well-known websites – even with a nofollow tag – builds your brand’s visibility and credibility. People who see your name repeatedly in trusted places begin to associate your brand with authority in your niche.
- Natural link profile: A healthy backlink profile includes a mix of both dofollow and nofollow links. If all of your backlinks are dofollow, search engines might view your link-building activity as unnatural or manipulative. Having a natural ratio of nofollow links signals that your links were acquired organically.
- Indexation: Since Google’s 2019 update treats nofollow as a hint rather than a directive, there are cases where Google does crawl and index a page that was only linked to via nofollow links. This means a nofollow link can still help a new page get discovered.
- Potential future dofollow links: Getting a nofollow mention on a major media site or influential blog can lead to further exposure. Other editors or writers who see your content linked on that platform may link to you from their own site – this time with a dofollow link.
How to Check If a Link Is Nofollow
Knowing how to identify nofollow links is a practical skill for any website owner or SEO practitioner. Here are the most common methods.
Using Browser Developer Tools
The simplest way to check if a specific link is nofollow is to inspect it using your browser’s built-in developer tools.
- Right-click on the link in your browser.
- Select “Inspect” or “Inspect Element.”
- Look at the highlighted HTML code in the panel that appears.
- If you see rel=”nofollow” (or rel=”sponsored” or rel=”ugc”) in the anchor tag, the link is a nofollow link.
Using Browser Extensions
Several free browser extensions can highlight nofollow links visually on any page you visit. Popular tools like MozBar, NoFollow Simple, and similar extensions will display nofollow links in a different color or with a visible label, making it easy to scan an entire page at a glance without reading the source code.
Using SEO Analysis Tools
Professional SEO platforms such as Ahrefs, SEMrush, and Moz allow you to analyze your backlink profile in detail. These tools clearly distinguish between dofollow and nofollow links in their reports, making it easy to see the composition of your link portfolio and identify which of your backlinks are passing SEO value.
Nofollow Links and Your Website: Best Practices
Whether you are a website owner managing outbound links, a content creator building backlinks, or a business owner overseeing your digital presence, here are the best practices you should follow when it comes to nofollow links.
Always Use Nofollow for Paid or Sponsored Links
This is non-negotiable. Google’s guidelines are clear: any link that exists because of a commercial transaction must be marked with rel=”sponsored” or rel=”nofollow”. Failing to do so is considered a link scheme and can result in serious penalties. If you run an affiliate program, use sponsored content, or accept paid guest posts, make sure all relevant links are properly marked.
Apply Nofollow to User-Generated Links by Default
If your website has any section where users can submit content – comments, forum posts, profile pages, or reviews – configure your platform to automatically add rel=”nofollow” or rel=”ugc” to all links within that content. Most major content management systems, including WordPress, do this automatically for comment sections, but it is always good to verify.
Do Not Over-Use Nofollow on Internal Links
Some SEO practitioners in the early days tried to use nofollow on internal links to control how PageRank flowed around their websites – a technique called “PageRank sculpting.” Google has confirmed that this approach is largely ineffective and can actually harm your SEO by creating confusing site architecture. In general, avoid using nofollow on links between your own pages.
Be Intentional When Linking to External Sites
When you link to external websites, think about whether you want to vouch for them. If you are citing a well-established, authoritative source, a dofollow link is appropriate and good practice. If you are referencing a site you are not entirely sure about, or if the link was included for informational purposes rather than editorial endorsement, using nofollow is a responsible choice.
Aim for a Natural Backlink Profile
When working to build backlinks to your own site, do not obsess over getting only dofollow links. A natural backlink profile will always include a healthy proportion of nofollow links – from social media, news articles, forums, and directories. If all your backlinks are dofollow, Google may interpret your link-building activity as manipulative. Diversity and naturalness are key.
Common Myths About Nofollow Links
There are quite a few misconceptions floating around about nofollow links. Let us clear up the most common ones.
Myth 1: Nofollow Links Are Completely Worthless
As we discussed earlier, nofollow links can drive real traffic, build brand awareness, contribute to a natural backlink profile, and – since Google now treats them as hints – may even carry some indirect SEO weight. They are absolutely not worthless.
Myth 2: You Should Pursue Only Dofollow Links
A link-building strategy that chases only dofollow links looks unnatural and can raise red flags with search engines. Real websites accumulate nofollow links organically through social media shares, mentions in comment sections, and citations in news articles. These are healthy, normal parts of a website’s link ecosystem.
Myth 3: Nofollow Links Cannot Get Your Pages Indexed
This was true in the early days, but it is not entirely accurate anymore. Since Google began treating nofollow as a hint, it may still crawl and index pages discovered through nofollow links. You cannot rely on nofollow links alone to get your pages indexed, but they are no longer a guarantee of invisibility either.
Myth 4: Nofollow Links Hurt Your SEO
Nofollow links, by themselves, do not hurt your SEO. They simply do not contribute the same direct ranking benefit as dofollow links. In fact, a natural mix of nofollow and dofollow links is a positive signal of organic link acquisition. The only time nofollow-related activities become harmful is if they are part of a broader manipulative scheme.
Nofollow Links in Real-World Examples
To make all of this concrete, here are some real-world examples of where nofollow links appear and why.
Wikipedia
Wikipedia applies nofollow to all of its external links. Despite being one of the most authoritative websites on the internet, a link from Wikipedia to your site will not directly boost your search rankings. However, getting mentioned and linked on Wikipedia can still drive significant traffic and lend your brand credibility. It is also common for other websites to use Wikipedia as a source, which may lead to additional dofollow links from those secondary sources.
Online Forums
Platforms like Reddit and Quora mark all user-generated links as nofollow. If you answer a question on Quora and include a link to your website, it will be a nofollow link. But because Quora and Reddit attract millions of readers, those links can still bring a meaningful stream of visitors to your website. That referral traffic has genuine value, even without passing direct SEO credit.
Press Releases
Google recommends using nofollow or sponsored tags on links in press releases that are distributed widely online. This is because press release distribution services have historically been abused to build artificial backlinks at scale. If you distribute a press release, make sure any links within it are appropriately marked.
Affiliate Links on a Blog
If you run a blog and earn commissions by recommending products, those affiliate links should be marked with rel=”sponsored” or rel=”nofollow”. This keeps you compliant with Google’s guidelines and ensures you are being transparent about your commercial relationships.
How Nofollow Links Fit Into Your Broader SEO Strategy
Understanding nofollow links in isolation is one thing. Knowing how to integrate that knowledge into a comprehensive SEO strategy is another. Here is how to think about nofollow links strategically.
Focus on Quality, Not Just Link Type
A nofollow link from a major national newspaper is more valuable in terms of brand exposure than a dofollow link from an obscure, low-quality blog. When evaluating link opportunities, consider the overall authority, relevance, and audience of the linking website – not just whether the link will be nofollow or dofollow.
Build for People First
The best links – both follow and nofollow – are earned naturally by creating content that people genuinely want to share and reference. When you focus on producing helpful, original, and high-quality content, links come to you as a natural byproduct. This is always a more sustainable and effective strategy than chasing backlinks artificially.
Protect Your Site from Penalties
Using nofollow and sponsored tags correctly is not just about SEO strategy – it is about protecting the long-term health of your website. Google’s manual review team actively penalizes websites involved in link schemes. Properly disclosing paid links and using the correct attributes keeps you on the right side of Google’s guidelines.
Regularly Audit Your Backlink Profile
Use SEO tools to periodically review which websites are linking to you and whether those links are nofollow or dofollow. This helps you understand your site’s authority, identify potential link-building opportunities, and spot any suspicious links that might be doing more harm than good.
Conclusion
Nofollow links are a fundamental part of how the modern web works. They were created to fight spam, evolved to include sponsored and ugc variants, and continue to play an important role in maintaining a healthy and transparent online ecosystem.
While nofollow links do not pass full link equity to the linked page, calling them worthless would be a mistake. They drive real traffic, build genuine brand visibility, contribute to a natural backlink profile, and – under Google’s current hint-based treatment – may even carry indirect SEO influence.
As a website owner or content creator, your job is not to obsess over whether a link is nofollow or dofollow. Your job is to create content worth linking to, to be transparent about paid relationships, to protect your audience from poor-quality sources, and to build a natural link profile that reflects the genuine authority you have earned.
When you combine a solid understanding of nofollow links with a commitment to quality content and ethical link-building practices, you have the foundation of an SEO strategy that is built to last.
Key Takeaways
- A nofollow link includes the rel=”nofollow” attribute, which tells search engines not to pass SEO link equity to the destination page.
- The nofollow tag was introduced in 2005 to combat comment spam and has since expanded to include rel=”sponsored” and rel=”ugc”.
- Always use nofollow or sponsored tags on paid, affiliate, or commercially motivated links.
- Nofollow links still offer indirect SEO value through referral traffic, brand visibility, and a natural link profile.
- Since 2019, Google treats nofollow as a hint, meaning it may still crawl and consider nofollow-linked pages in some circumstances.
- A healthy, natural backlink profile includes a mix of both dofollow and nofollow links.
About the Author
Jay Patel is the Founder of XSquareSEO, a full-service SEO agency with experience in on-page SEO, eCommerce SEO, link building, technical SEO, SaaS SEO, and local SEO. For more information, feel free to contact us.
Explore More Guides
HTTPS SEO Explained
.NET Domain SEO Use
Robots.txt SEO Guide
SEO Rich Text Content
XML Sitemap SEO Guide
What is Technical SEO
.CO vs .COM Domains
Website Bounce Rate Explained
Ubersuggest vs Ahrefs
404 Error SEO Impact
