Best SEO Singapore
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Nofollow Links: What They Are, How They Impact SEO, and 10 Real Benefits for Your Site

Jim Ng
Jim Ng
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Nofollow Links SEO Value
Nofollow Links
transforms
2019 Hint Evolution
Google changed nofollow from a strict directive to a hint, meaning it can now crawl, index, and pass some value through nofollow links.

produces
Referral Traffic
High-authority nofollow links drive engaged visitors who spend more time on your site than average, sending positive behavioral signals.

enables
Organic Dofollow Backlinks
Referral visitors (bloggers, journalists) discover your content and link to it with dofollow links, creating a compounding link-building effect.

produces
User Engagement Signals
Hundreds of engaged visitors reading, clicking, and sharing content generate behavioral patterns that Google's algorithms measure and reward.

prevents
Direct PageRank Transfer
Nofollow links do not pass traditional link equity, so they won't directly move Domain Authority or Domain Rating metrics.

prevents
Spam Link Manipulation
Originally created in 2005 to stop comment spam from inflating rankings, giving site owners a way to host links without endorsing them.

If you’ve spent any time building links for your Singapore business, you’ve probably wondered whether nofollow links are worth the effort. After all, they don’t pass PageRank directly. So what’s the point? The truth is, understanding what nofollow links are and their SEO impact can fundamentally change how you approach your link-building strategy. I’ve seen clients dismiss nofollow links entirely, only to realise later they were leaving traffic, credibility, and indirect ranking signals on the table.

Let me walk you through exactly how nofollow links work at a technical level, why Google changed how it treats them in 2019, and the 10 concrete benefits they bring to your site.

A nofollow link is a hyperlink with a rel="nofollow" attribute in its HTML. When a search engine crawler encounters this attribute, it receives a signal that the linking page is not vouching for the destination URL from a ranking perspective.

Here’s what the code looks like:

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

For your visitors, nothing changes. They click the link, they land on the page. The difference is entirely behind the scenes, in how Googlebot and other crawlers interpret the relationship between the two pages.

The 2005 Origin Story

Google, Yahoo, and Microsoft jointly introduced the nofollow attribute in January 2005. The problem was straightforward: spammers were flooding blog comments, forum posts, and guestbooks with links to manipulate rankings. The nofollow tag gave site owners a tool to say, “This link exists, but I’m not endorsing it.”

WordPress adopted it immediately for all comment links. Most major CMS platforms followed. Overnight, comment spam became far less effective as an SEO tactic.

The 2019 Evolution: From Directive to Hint

Here’s where it gets technically interesting. In September 2019, Google announced a major shift. The nofollow attribute changed from a directive (a strict instruction Google obeyed) to a hint (a signal Google could choose to consider or ignore).

Google also introduced two new link attributes:

  • rel="sponsored" for paid or sponsored links
  • rel="ugc" for user-generated content links

This means Google now reserves the right to crawl, index, and even pass some value through nofollow links when it determines doing so would improve search results. In practice, this made nofollow links more valuable than they were before 2019. Google’s systems can now use them for crawling and indexing purposes, even if the ranking signal remains muted.

If you’re still operating under the pre-2019 assumption that nofollow links are invisible to Google, you’re working with outdated information.

Let me be direct: a nofollow link from The Straits Times will not pass the same PageRank as a dofollow link from The Straits Times. That’s a fact. But reducing SEO to “PageRank passed or not passed” is like evaluating a hawker stall only by whether it has a Michelin star. You’d miss a lot of excellent chicken rice that way.

The Direct Ranking Impact

Nofollow links do not directly contribute to your page’s authority in the traditional link equity model. Google’s John Mueller has confirmed this multiple times. If you’re measuring success purely by Domain Authority or Domain Rating changes, nofollow links won’t move the needle much.

The Indirect SEO Signals That Actually Matter

Here’s what the data shows. When we tracked a client’s nofollow link from a popular Singapore finance blog (around 180,000 monthly visitors), the results over 30 days were:

  • 1,247 referral visits to the client’s site
  • Average session duration of 3 minutes 42 seconds (compared to their site average of 2 minutes 10 seconds)
  • 14 organic backlinks acquired from people who discovered the content through that referral traffic

Those 14 organic backlinks? They were dofollow. They came from bloggers and journalists who found the client’s content through the original nofollow link. This is the compounding effect that most people miss when they dismiss nofollow links.

Google’s algorithms measure user engagement signals. When hundreds of engaged visitors land on your page, spend time reading, click through to other pages, and share your content, those behavioural patterns feed into how Google evaluates your site’s quality.

Let’s get specific about each benefit, with actionable takeaways you can apply to your own site.

1. Spam Prevention and Site Hygiene

If you run a blog with open comments, a forum, or any platform where users can submit links, nofollow is your first line of defence. Without it, every spam comment becomes a potential liability.

Here’s what to do: audit your CMS settings right now. In WordPress, comment links are nofollow by default. But if you’re running a custom-built site (common among Singapore e-commerce businesses), verify that your developers have implemented rel="nofollow" or rel="ugc" on all user-submitted links. Check your forum software, your review sections, and any testimonial widgets that pull in external URLs.

I’ve audited sites where custom review plugins were outputting dofollow links to every URL customers typed in. One site had 340 outbound dofollow links to random, unvetted domains. That’s a penalty waiting to happen.

2. Brand Visibility Across High-Authority Platforms

Every link on a high-traffic platform is a doorway. Nofollow or not, if your brand name and URL appear on a site that 500,000 people visit monthly, you’re getting exposure that money can’t easily buy.

Think about platforms like HardwareZone forums, Reddit’s r/singapore, or Mothership. These sites nofollow external links. But a well-placed mention in a popular thread can drive thousands of eyeballs to your brand in a single day.

Your action step: identify the top 10 online communities where your target audience in Singapore spends time. Create genuinely useful contributions. Don’t drop links randomly. Answer questions thoroughly, and include a link to your resource only when it genuinely adds value to the discussion.

3. High-Quality Referral Traffic

Referral traffic from nofollow links often converts better than organic search traffic. Why? Because the visitor has already been pre-qualified by the referring site’s context.

If a trusted Singapore parenting blog mentions your children’s enrichment service with a nofollow link, the parents clicking through are already interested and already trust the source that referred them. That’s warm traffic.

Track your referral traffic in Google Analytics 4 by going to Reports > Acquisition > Traffic Acquisition. Filter by “Referral” and look at engagement metrics. You’ll often find that referral visitors from authoritative nofollow sources have lower bounce rates and higher conversion rates than many other channels.

Google’s spam team looks at link profiles holistically. A site with 100% dofollow backlinks raises red flags. It suggests link buying or manipulation, because in the real world, a natural link profile always contains a mix.

Based on what I’ve observed across hundreds of Singapore business websites, a healthy link profile typically has 30% to 60% nofollow links. If your nofollow ratio is below 20%, it’s worth investigating whether your link-building approach looks artificial to Google.

You can check your nofollow ratio using Ahrefs, Semrush, or Moz. Export your backlink profile, filter by link attribute, and calculate the percentage. If the ratio is skewed heavily toward dofollow, diversify your approach by pursuing mentions on social platforms, news sites, and community forums.

5. Social Proof and Brand Credibility

When a respected industry publication or influencer links to your site, your audience doesn’t check whether it’s nofollow or dofollow. They see the endorsement. They see that a source they trust is pointing to you.

This is particularly powerful in Singapore’s market, where word-of-mouth and trusted recommendations carry enormous weight. A nofollow mention from a well-known local food blogger can do more for a restaurant’s bookings than a dofollow link from a random directory that nobody reads.

Build relationships with Singapore-based journalists, bloggers, and industry voices. Provide them with genuinely useful data, exclusive insights, or early access to your products. The links will follow, nofollow or otherwise.

6. Protection from Google Penalties

Google’s guidelines are explicit: paid links, sponsored content, and affiliate links must be marked appropriately. If you’re running sponsored posts or paying influencers in Singapore to mention your brand, those links need rel="sponsored" or at minimum rel="nofollow".

Failing to do this puts both your site and the linking site at risk. Google issued manual actions to several Singapore-based businesses in 2023 for undisclosed paid links. The recovery process took months and cost those businesses significant organic traffic.

Your checklist: audit every paid placement, every sponsored article, every influencer collaboration. Confirm that the links carry the correct rel attribute. Document these relationships. If Google’s webspam team ever reviews your profile, you want a clean paper trail.

7. Networking and Partnership Opportunities

Here’s something I tell every client: the link is not the end goal. The relationship is. A nofollow link from a collaboration today can become a dofollow editorial mention six months from now, once the other party sees the value you bring.

I worked with a Singapore fintech startup that co-authored a research piece with a regional financial publication. The initial links were all nofollow. But the relationship led to three subsequent feature articles with dofollow links, plus an invitation to speak at the publication’s annual conference. That conference appearance generated another 12 backlinks from attendee blogs and media coverage.

Don’t evaluate partnerships solely by whether you’ll get a dofollow link. Evaluate them by the quality of the relationship and where it could lead over 12 to 24 months.

8. Indirect Ranking Signals Through User Behaviour

When a nofollow link on a popular site sends 2,000 visitors to your page in a week, and those visitors spend an average of four minutes reading your content, Google notices. Not because of the link attribute, but because of the engagement data.

Google’s helpful content system evaluates whether real people find your content satisfying. A surge in engaged visitors, regardless of how they arrived, contributes to that evaluation.

To maximise this benefit, make sure the landing page that receives nofollow referral traffic is genuinely excellent. Fast loading speed (under 2.5 seconds LCP), clear structure, comprehensive content, and a logical next step for the visitor. If people bounce immediately, the indirect signal works against you instead of for you.

9. Amplified Social Sharing and Reach

Every major social media platform uses nofollow links. Facebook, LinkedIn, Twitter/X, Instagram (in bios), TikTok. If you dismissed nofollow links entirely, you’d have to abandon social media marketing. Obviously, that makes no sense.

Social shares create a multiplier effect. One person shares your article on LinkedIn. Three of their connections reshare it. One of those connections is a journalist who writes about your topic and links to you from their publication, this time with a dofollow link.

This cascade effect is how nofollow links generate dofollow links organically. Your job is to create content worth sharing and make it easy to share. Add Open Graph tags so your content displays properly when shared. Write compelling meta descriptions that make people want to click.

10. Content Validation and Trust Signals

When you link out to authoritative sources using nofollow, you’re telling your readers, “I’ve done my research, and here’s where you can verify it.” This builds trust with your audience without passing ranking authority to sites you don’t fully control.

This is especially relevant if you’re in a YMYL (Your Money or Your Life) niche in Singapore. Financial services regulated by MAS, healthcare content, legal advice. Google scrutinises these topics heavily. Linking to official government sources, peer-reviewed studies, or regulatory bodies (even with nofollow) demonstrates that your content is well-researched and responsible.

For Singapore-specific content, consider nofollow links to IRAS for tax information, MAS for financial regulations, or MOH for health guidelines. Your readers get the reference they need, and you maintain control over your outbound link equity.

Let me clear up four persistent myths that I still hear from business owners in Singapore.

Wrong. Since 2019, Google treats nofollow as a hint, not a directive. Google can choose to crawl, index, and consider nofollow links. Beyond that, the referral traffic, brand signals, and engagement they generate all contribute to your site’s overall SEO health.

Google has confirmed it uses nofollow links for discovery and crawling purposes. If your new page’s only inbound link is a nofollow from a high-authority site, Google may still find and index that page through it. I’ve seen this happen with client pages that had zero dofollow links but were indexed within 48 hours after a nofollow link from a major news site.

If a nofollow link from a site with 500,000 monthly visitors can send you 1,000 referral visits and lead to 10 organic dofollow links, why would you avoid it? Evaluate link opportunities by their total potential value, not just their rel attribute.

Every link pointing to your site is data. Nofollow links in your Google Search Console backlink report, your Ahrefs profile, and your GA4 referral traffic all tell a story about where your brand is being mentioned and who’s sending you visitors. Ignoring this data means missing growth opportunities.

Knowing when to apply nofollow to your outbound links is just as important as earning nofollow inbound links. Here are the situations where you should use them.

Any link you’ve paid for, whether it’s an advertorial, a sponsored blog post, or a banner ad, must carry rel="sponsored" or rel="nofollow". This is non-negotiable under Google’s guidelines. In Singapore, where influencer marketing is booming, this applies to every paid Instagram collaboration, every sponsored TikTok video description, and every advertorial on a local media site.

User-Generated Content

Apply rel="ugc" to links in comments, forum posts, and customer reviews. If your Singapore e-commerce site allows customers to include URLs in their reviews, those links need to be nofollowed. No exceptions.

If you’re earning commissions from product recommendations, mark those links with rel="sponsored" or rel="nofollow". This keeps you compliant and transparent. It’s also good practice to disclose affiliate relationships to your readers, which aligns with CCCS (Competition and Consumer Commission of Singapore) guidelines on advertising transparency.

Sometimes you need to reference a source you can’t fully vouch for. Maybe it’s a competitor’s pricing page for comparison, or a news article from an unfamiliar publication. Use nofollow to reference the content without endorsing the domain.

Guest Post Author Bios

If you accept guest posts on your site, nofollow the links in author bios. Google has specifically called out guest post links as a common area of abuse. Using nofollow here protects both you and your guest contributors.

Press Releases

Links within press releases distributed through wire services should be nofollow. Google has stated clearly that press release links should not pass PageRank. If your PR agency is promising dofollow links through press release distribution, that’s a red flag.

Right-click the link in your browser and select “Inspect” or “Inspect Element.” Look at the <a> tag in the HTML. If you see rel="nofollow", rel="sponsored", or rel="ugc", the link is nofollowed.

For bulk analysis, use browser extensions like NoFollow Simple or SEO tools like Ahrefs’ Site Explorer. Export your backlink profile and filter by link type to see your full nofollow vs. dofollow breakdown.

Nofollow links are not second-class citizens in your SEO strategy. They prevent penalties, drive qualified referral traffic, build brand credibility, and create the conditions for organic dofollow links to emerge naturally. Dismissing them means leaving real business value on the table.

The smartest approach is a balanced one. Pursue high-quality links regardless of their rel attribute. Focus on the audience behind the link, the traffic it can send, and the relationships it can build.

If you’re unsure whether your current link profile is healthy, or if you want a technical audit of your backlink strategy, reach out to us at bestseo.sg. We’ll analyse your link profile, identify gaps, and build a plan that accounts for both dofollow and nofollow opportunities. No fluff, just the technical work that moves rankings.

Jim Ng, Founder of Best SEO Singapore
Jim Ng

Founder of Best Marketing Agency and Best SEO Singapore. Started in 2019 cold-calling 70 businesses a day, scaled to 14, then leaned out to a 9-person AI-first team serving 146+ clients across 43 industries. Acquired Singapore Florist in 2024 and grew it to #1 rankings for competitive keywords. Every SEO strategy ships with his personal review.

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