# What Is a Nofollow Link? How It Works and Why It Matters for SEO When you link from one webpage to another, you're doing more than pointing readers in a new direction — you're potentially passing along **SEO authority**. A nofollow link is a way to link to a page while telling search engines *not* to treat that link as a vote of confidence. Understanding what that means, when it applies, and how search engines actually respond to it is more nuanced than most quick definitions suggest. ## The Basic Mechanics of a Nofollow Link Every standard hyperlink looks something like this in HTML: ```html Visit Example ``` A **nofollow link** adds a `rel` attribute with the value `nofollow`: ```html Visit Example ``` That single attribute is a signal to search engine crawlers — most notably Google — that you, the site owner, do not want to pass **PageRank** (link equity) to the destination URL. In plain terms: you're saying "I'm linking here, but don't count this as my endorsement for ranking purposes." The concept was introduced by Google in 2005, originally as a tool to fight **comment spam**. Spammers were flooding blog comments with links to boost their own rankings. The nofollow attribute gave publishers a way to link without rewarding that behavior. ## Nofollow vs. Dofollow — What's the Difference? There's no such thing as a `rel="dofollow"` tag in actual HTML. **Dofollow** is an informal term used in SEO to describe any regular link that *doesn't* carry a nofollow attribute. It's the default state of every link. | Link Type | HTML Attribute | Passes Link Equity? | Indexed by Google? | |-----------|---------------|--------------------|--------------------| | Dofollow | None (default) | Yes | Yes | | Nofollow | `rel="nofollow"` | Generally no | Possibly | | Sponsored | `rel="sponsored"` | No | Possibly | | UGC | `rel="ugc"` | No | Possibly | In 2019, Google expanded the system with two additional `rel` values: **`sponsored`** (for paid links or ads) and **`ugc`** (for user-generated content like forum posts or comments). All three now function as **hints** rather than strict directives — meaning Google *may* choose to crawl and index the linked page anyway, but the equity-passing signal is withheld. ## Where Nofollow Links Commonly Appear Nofollow attributes show up in predictable places across the web: - **Blog comments** — Most platforms like WordPress apply nofollow to comment links automatically - **Forum posts** — Reddit, for example, nofollows all outbound links - **Press releases** — Google advises using nofollow on links within distributed press releases - **Paid advertisements and sponsored content** — Required by Google's guidelines; failure to nofollow paid links can result in manual penalties - **Wikipedia** — All external links on Wikipedia carry nofollow - **Social media profiles** — Most major platforms nofollow outbound links This matters because if you're building a **backlink profile**, a link from a high-authority domain sounds impressive — but if that link is nofollowed, it won't move the needle on rankings the same way a followed link would. ## Does Google Completely Ignore Nofollow Links? 🔍 Not entirely. Since the 2019 update, Google treats nofollow as a *hint*, which opens some ambiguity. In practice: - Google may still **crawl** the destination URL - The linked page may still get **indexed** - The link may still **drive referral traffic** to your site - It may still contribute to **brand visibility and awareness** Some SEO practitioners argue that consistent patterns of nofollow links from trusted sources can contribute indirectly to a site's perceived authority — though this isn't confirmed as a ranking factor. What's definitively *not* transferred: the direct PageRank equity that influences search ranking positions. ## Why You'd Intentionally Use Nofollow There are legitimate editorial and technical reasons to apply nofollow attributes to your own outbound links: - **You're linking to a source you don't fully trust or endorse** - **You're citing a competitor** and don't want to boost their ranking - **You've accepted payment or products** in exchange for a mention (required by Google's guidelines) - **You're linking to a login page, terms page, or other low-value internal URL** you don't want crawlers to prioritize Using nofollow strategically is part of responsible **link equity management** — especially on larger sites with complex internal linking structures. ## The Variables That Change How Nofollow Links Affect You Whether nofollow links matter to *your* site depends on several intersecting factors: - **Your site's age and authority** — A new site with few backlinks feels the absence of followed links more acutely than an established domain with thousands - **Your link-building strategy** — If you're actively trying to build PageRank, the ratio of followed to nofollowed backlinks matters - **Your traffic sources** — A nofollow link from a high-traffic forum can still send meaningful referral traffic, regardless of SEO value - **Your niche** — In some industries, most natural links are nofollowed by default (news sites, Wikipedia, social platforms), making it part of the normal backlink profile A site that gets most of its links from social media and news coverage will have a heavily nofollow-weighted backlink profile almost by default. A site relying on guest posts and editorial placements may accumulate more followed links. Neither profile is inherently better — it depends on what the rest of your SEO strategy looks like. ## The Spectrum of Impact At one end: a nofollow link from a low-traffic, low-authority site contributes almost nothing — no equity, no meaningful traffic, minimal visibility. At the other end: a nofollow link from a dominant platform like Reddit, Wikipedia, or a major news publication can drive thousands of real visitors, establish brand credibility, and appear prominently in branded search results — even without passing PageRank. 🎯 The gap between "this link does nothing" and "this link matters a lot" has less to do with the nofollow attribute itself and more to do with the context, authority, and traffic potential of the linking source. Where your own site falls on that spectrum — and whether prioritizing followed versus nofollowed links should shift your strategy — depends entirely on your current backlink profile, domain authority, traffic goals, and the competitive landscape of your niche.