Do Nofollow Links Help SEO? What the Data Actually Shows

Most link-building conversations treat nofollow links as consolation prizes — better than nothing, but not worth pursuing. That framing has always been an oversimplification, and Google's own guidance has shifted more than once to reflect it. The question of whether nofollow links help SEO is one that deserves a precise answer, not a dismissive one. Here's what the evidence actually shows.

If you're looking for expert help in this area, explore how Indexed's link building services can drive measurable results for your business.

What a Nofollow Link Actually Is

A nofollow link carries the HTML attribute rel="nofollow". When that attribute is present, it signals to search engines that the linking site does not wish to endorse the destination page. Originally introduced by Google in 2005 to combat comment spam, the attribute was a blunt instrument: ignore this link, pass no PageRank, move on.

A standard followed link looks like this in HTML:

<a href="https://example.com">Example</a>

A nofollow link looks like this:

<a href="https://example.com" rel="nofollow">Example</a>

As a visitor browsing the web, you cannot tell the difference. The link looks and behaves identically. The distinction lives entirely in the HTML that search engine crawlers read.

UGC and Sponsored: The Newer Siblings

In September 2019, Google introduced two additional link attributes: rel="ugc" (for user-generated content such as forum posts and comments) and rel="sponsored" (for paid placements). Both behave similarly to nofollow in that they do not pass PageRank as a directive, but they give Google richer signals about the nature of the link. For practical link-building purposes, if you are earning editorial mentions, rel="nofollow" remains the most common attribute you will encounter.

Do Nofollow Links Help SEO? What Google's Own Guidance Says

The honest answer is: it depends on how you define "help."

When Google revised its nofollow guidance in 2019, it made a significant change to language. The attribute shifted from being treated as a directive — a hard instruction to ignore the link — to being treated as a hint. Google's announcement stated explicitly that it may use nofollow links for "crawling and indexing purposes." In plain terms, Google reserves the right to follow the link, crawl the destination, and factor it into ranking decisions, even if no PageRank passes in the traditional sense.

That is a meaningful shift. It does not mean nofollow links are equivalent to followed ones. But it does mean the old categorical dismissal — "nofollow links do nothing" — is no longer accurate.

What "Hint" Means in Practice

Google does not publish a breakdown of how often it chooses to act on a nofollow hint versus ignore it. What we can observe is that pages regularly get crawled and indexed after receiving nofollow links from high-authority domains. Whether ranking benefit follows is harder to isolate. The most defensible position, based on Google's own documentation, is that nofollow links from authoritative, relevant sources carry some probability of influencing crawl behaviour and indexation — even if they carry little to no direct PageRank.

The Indirect SEO Value Most Analyses Miss

Here is where most competitor articles stop: they cover the PageRank debate, mention the 2019 hint update, and move on. But the more commercially relevant question for most businesses is not whether nofollow links pass PageRank — it is whether they produce outcomes that improve search performance.

Consider a concrete scenario. A mid-sized UK software company secures a nofollow mention in a widely read industry newsletter with 40,000 subscribers. The link passes no PageRank. But the mention drives referral traffic. Some of those visitors bookmark the site, search for the brand name, share the content, and link to it from their own sites — with followed links. The nofollow link was the catalyst for a chain of signals that Google demonstrably weights.

This is the indirect pathway that purely technical analyses overlook. Nofollow links can generate:

• Referral traffic that introduces your content to audiences who later link to it editorially
• Brand search volume, which correlates with perceived authority
• Social sharing that amplifies content to potential followed-link sources
• Crawl discovery, helping Google find and index new pages faster

None of these are guaranteed. All of them are plausible and observable in practice.

Why a Healthy Link Profile Needs Nofollow Links

This is the angle that most technical SEO guides skip entirely, yet it matters significantly for sites under manual or algorithmic scrutiny.

A link profile composed entirely of followed links is not how the web works organically. When a journalist mentions your brand in an article on a major publication, that link is almost certainly nofollow. When someone discusses your product on Reddit or Trustpilot, those links carry UGC or nofollow attributes. A completely followed link profile, particularly one built quickly, can appear manipulative to Google's algorithms precisely because it does not reflect natural linking behaviour.

Indexed regularly audits link profiles for clients who have undertaken aggressive link-building campaigns. One pattern that appears repeatedly: profiles with an unusually high ratio of followed links from mid-tier sites, and almost no nofollow signals from the kinds of high-authority platforms that would naturally mention a credible business. That imbalance is a risk signal, not a strength.

A mix of nofollow and followed links from contextually relevant, authoritative sources is closer to what a naturally earning site looks like. That naturalness has value independent of any individual link's PageRank contribution.

What Ratio Should You Aim For?

There is no universal target ratio — anyone citing a precise figure is guessing. What you should look for is consistency with your competitive set. Use a tool such as Ahrefs or Moz to examine the followed-to-nofollow ratio for the top three or four ranking competitors in your space. If your profile diverges sharply, that is worth investigating rather than celebrating.

When to Actively Pursue Nofollow Links

Given all of the above, the practical question is: when is a nofollow link worth pursuing deliberately, and when should your effort go elsewhere?

Pursue nofollow links actively when:

• The domain authority and relevance of the linking site is high — a nofollow from the BBC or the Financial Times carries more brand association and indirect signal value than a followed link from an obscure directory
• The placement will drive meaningful referral traffic from an audience likely to include journalists, bloggers, or potential customers who link to content themselves
• The opportunity builds topical authority signals — being mentioned consistently within a topic cluster reinforces your entity associations in Google's knowledge graph
• Your current link profile lacks nofollow diversity and looks synthetic as a result

Do not pursue nofollow links when the placement is low-authority, irrelevant to your niche, and unlikely to generate any traffic or secondary linking. At that point, the effort genuinely does not justify the return — not because the link is nofollow, but because the placement itself has no value.

FAQ

Do nofollow links pass PageRank?

As a formal directive, no — nofollow links are not supposed to pass PageRank. Since 2019, however, Google has described the attribute as a hint rather than a hard rule, meaning it may choose to crawl and consider nofollow links in certain circumstances. You should not plan your link strategy assuming nofollow links pass full PageRank, but you also should not dismiss them as contributing nothing.

Will Google crawl a page it discovers through a nofollow link?

Yes, it can. Google confirmed in its 2019 update that nofollow links may be used for crawling and indexing. If your site has not yet been discovered or a new page is not being indexed, a nofollow link from a high-authority domain can still prompt Googlebot to visit the page.

Is it worth spending budget on link-building opportunities that only offer nofollow links?

It depends on the quality of the placement. A nofollow mention from a highly relevant, high-authority publication that will drive real traffic is often worth pursuing — the indirect SEO benefits through referral traffic, brand search, and secondary linking can outweigh the absence of direct PageRank. A nofollow link from a low-authority, low-traffic site with no audience relevance is rarely worth the effort.

Is a link profile with too many nofollow links a problem?

An unusually high proportion of nofollow links could indicate a profile that relies heavily on paid placements, directories, or social platforms rather than genuine editorial endorsement. While nofollow diversity is healthy, an excess can suggest low organic authority in the eyes of Google's algorithms. As with the followed-link imbalance, the benchmark should be your competitive set rather than a universal rule.

What to Do This Week

If you have read this far and are wondering what to actually change, here are specific steps you can take immediately:

• Audit your current link profile ratio. Pull your backlink data from Ahrefs or Google Search Console and note what percentage of your referring domains use nofollow versus followed attributes. Compare that to your top two competitors.
• Identify your highest-priority nofollow opportunities. List five publications or platforms in your niche that would drive meaningful referral traffic, even if their links are nofollow. Prioritise those with domain ratings above 60 and audiences that overlap with your buyer or linker personas.
• Stop rejecting nofollow pitches reflexively. If a major industry publication, trade body, or news outlet offers you a nofollow mention, evaluate it on the quality of the placement — not on the attribute alone. Make that a stated principle in your outreach evaluation process.
• Review your disavow file. If you previously disavowed nofollow links from reputable sources under the mistaken belief they were harmful, revisit those decisions. Removing reputable nofollow links from a disavow file is unlikely to cause harm and may restore a healthier profile appearance.

Related Reading

• Paid vs Editorial Backlinks: What Builds Authority
• What Makes a High-Quality Backlink? (And What to Avoid)
• What Is Topical Authority and How Do You Build It?
• Entity SEO: How to Build Knowledge Graph Authority
• Why Does SEO Still Matter in 2026?