If you’ve been doing SEO for more than a week, you’ve heard that backlinks matter. But here’s what most guides won’t tell you: not all 25 types of backlinks in SEO carry the same weight, and chasing the wrong ones can actually set you back. I’ve spent years building link profiles for Singapore businesses, and the difference between a well-constructed backlink strategy and a scattershot approach is often the difference between page one and page five.
This guide breaks down every major backlink type, explains which ones deserve your time, and gives you practical steps to earn them. No fluff, just what works.
What Makes a Backlink Worth Pursuing?
Before we get into the 25 types, you need a framework for evaluating any backlink opportunity. Think of it like choosing a kopitiam stall. You don’t just count how many stalls there are. You care about the quality of the food, the queue length (social proof), and whether the stall actually serves what you’re craving.
Relevance Over Volume
A single link from a topically relevant website in your industry outperforms 50 links from random directories. Google’s algorithms have become remarkably good at understanding topical relationships. If you run an accounting firm in Singapore, a link from the Institute of Singapore Chartered Accountants carries far more weight than one from a fitness blog, regardless of that fitness blog’s Domain Authority.
Authority of the Linking Domain
Check the linking site’s DR (Domain Rating in Ahrefs) or DA (Domain Authority in Moz). But don’t stop there. Look at the site’s organic traffic. A DR 60 site with zero organic traffic is often a link farm. A DR 35 site pulling 15,000 monthly visitors from Google is a genuine, trusted resource.
Link Placement and Context
Links embedded within the main body content of a page pass significantly more equity than those buried in footers, sidebars, or author bios. Google’s reasonable surfer model assigns higher probability to links that a real reader would actually click. A contextual link in paragraph three of a relevant article is gold.
Anchor Text Distribution
Your anchor text profile should look natural. That means a healthy mix of branded anchors (“Best SEO”), naked URLs, generic phrases (“click here”, “this guide”), and a modest percentage of exact-match keyword anchors. Over-optimising anchor text is one of the fastest ways to trigger a Penguin-related penalty. I typically recommend keeping exact-match anchors below 5% of your total profile.
The Dofollow vs. Nofollow Reality
Dofollow links pass PageRank directly. Nofollow, sponsored, and UGC attributes tell Google not to count the link as an editorial vote. But here’s the nuance: since 2019, Google treats these attributes as “hints” rather than directives. A nofollow link from The Straits Times still sends trust signals. A natural backlink profile contains both types. If 100% of your links are dofollow, that itself looks unnatural.
The 4 Core Backlink Attributes
1. Dofollow Backlinks
These are the default. When a site links to you without any rel attribute, it’s dofollow. Search engines follow the link, crawl the destination, and pass link equity. In our campaigns, a single high-quality dofollow link from a DR 50+ relevant site has moved target pages up 3 to 7 positions within 4 to 6 weeks.
Action step: Audit your current backlink profile in Ahrefs or SEMrush. Filter by dofollow links and check what percentage come from relevant domains. If relevance is below 40%, that’s your priority gap.
2. Nofollow Backlinks
Tagged with rel="nofollow", these links don’t pass direct ranking power. But they drive referral traffic, build brand awareness, and contribute to a natural-looking link profile. Wikipedia links, for instance, are all nofollow, yet pages with Wikipedia backlinks consistently correlate with higher rankings.
3. Sponsored Backlinks
If you’re paying for a link placement, advertorial, or sponsored content, the link must carry rel="sponsored". This isn’t optional. Google’s guidelines are explicit, and in Singapore’s small market, competitors are quick to report violations. I’ve seen businesses lose 60% of their organic traffic after a manual action triggered by undisclosed paid links.
4. UGC Backlinks
Links within user-generated content, such as forum replies, blog comments, and community posts, should carry rel="ugc". These links carry minimal direct SEO value, but they’re part of a healthy, diverse profile. Don’t ignore them. Don’t chase them either.
Content-Based Backlinks: The Highest ROI Category
5. Editorial Backlinks
These are the holy grail. A journalist, blogger, or content creator links to your page because it genuinely adds value to their article. You can’t buy these. You earn them by publishing original research, unique data, or genuinely useful resources.
Action step: Create a “linkable asset” specific to your industry. For a Singapore property agency, that might be a quarterly analysis of HDB resale price trends with original charts. For an F&B business, a comprehensive guide to ACRA registration requirements for food establishments.
6. Guest Post Backlinks
Writing articles for other websites in exchange for a backlink remains effective when done properly. The key word is “properly.” Guest posting on irrelevant sites with thin content is a waste. Target sites where the audience overlaps with yours, and write content that’s genuinely better than what’s already on their blog.
In the Singapore market, look for industry publications, trade association blogs, and niche media sites. A guest post on a site like HardwareZone’s business section or a respected fintech blog carries real weight.
7. Infographic Backlinks
Well-designed infographics still attract links, but the bar has risen dramatically. A generic “10 SEO stats” infographic won’t cut it. You need original data, a compelling narrative, and professional design. When we created an infographic mapping Singapore’s top 100 e-commerce sites by organic traffic for a client, it earned 34 backlinks in 60 days without any outreach.
8. Video Backlinks
Publishing video content on YouTube, then getting other sites to embed or reference it, generates backlinks to both the video and your website. The trick is including your website URL in the video description and creating a companion blog post that the video links back to. This creates a content ecosystem rather than a one-off asset.
9. Podcast Backlinks
Appearing as a guest on podcasts is an underused tactic in Singapore. Most podcast hosts include show notes with links to their guests’ websites. Identify 10 to 15 podcasts in your niche, pitch a specific topic (not a generic “I’d love to be on your show”), and you’ll likely land 3 to 5 appearances. Each one typically produces a dofollow backlink from the podcast’s website.
10. Resource Page Backlinks
Many websites maintain curated lists of tools, guides, or references. If your content genuinely belongs on these lists, reach out. Use search operators like "your keyword" + "useful resources" or "your keyword" + "recommended links" to find opportunities.
Action step: Search for "Singapore" + "business resources" + inurl:resources and compile a list of 20 pages. Check which ones are actively maintained, then pitch your best content for inclusion.
11. Webinar Backlinks
Hosting or co-hosting webinars with complementary businesses creates multiple link opportunities. The registration page, recap blog post, and partner’s promotional materials all typically link back to your site. In Singapore, co-hosting with organisations like SME Centre or industry associations adds credibility and earns links from .gov.sg or .org.sg domains, which carry significant authority.
Business and Community Backlinks
12. Business Directory Backlinks
Start with the essentials: Google Business Profile, Singapore Business Directory, Yellow Pages Singapore, and any industry-specific directories. These links are typically nofollow, but they establish your NAP consistency (Name, Address, Phone) which is critical for local SEO. Inconsistent NAP data across directories can suppress your local pack rankings.
13. Forum Backlinks
Platforms like HardwareZone forums, Reddit’s r/singapore, and niche industry forums can drive referral traffic and earn you links. The rule is simple: contribute genuinely useful answers first, link to your content only when it directly solves the question being asked. Forum moderators in Singapore’s tight-knit communities will ban you quickly if you’re just dropping links.
14. Comment Backlinks
Blog comments are almost always nofollow and carry near-zero direct SEO value. But a thoughtful comment on a high-traffic blog can drive 50 to 200 referral visits, and some of those visitors may link to you from their own sites. Think of comment backlinks as a traffic play, not a link equity play.
15. Press Release Backlinks
Distributing press releases through services like PR Newswire or locally through Asia PR Werkz can generate links from news aggregators. The SEO value has diminished over the years, but for genuinely newsworthy announcements (funding rounds, major partnerships, product launches), press coverage can earn editorial backlinks from media outlets that pick up the story.
16. Local Citations
Beyond directories, local citations include mentions of your business on sites like Yelp Singapore, TripAdvisor, Burpple, and HungryGoWhere. For service businesses, platforms like Carousell Services and Singsaver also count. Each consistent citation reinforces your local relevance to Google.
Action step: Use a tool like BrightLocal or Whitespark to audit your current citations. Fix any inconsistencies in your business name, address, or phone number before building new ones.
17. Association and Membership Backlinks
Joining the Singapore Business Federation, your relevant trade association, or your local Chamber of Commerce often gets you a member profile page with a backlink. These .org.sg links carry strong trust signals. The annual membership fee is often less than what you’d pay for a single high-quality guest post placement.
18. Testimonial Backlinks
This is one of the easiest link building tactics available. Identify software tools, service providers, or suppliers you genuinely use. Write them a detailed testimonial. Most companies publish testimonials on their website with a link back to the reviewer’s business. I’ve personally earned links from DR 70+ SaaS companies simply by writing honest, specific testimonials about their products.
19. Product Review Backlinks
If you sell products, getting reviewed by bloggers, comparison sites, or YouTube creators generates backlinks naturally. For Singapore-based e-commerce businesses, reaching out to local review sites and micro-influencers with a genuine product sample (not a paid review) can produce authentic backlinks that also drive conversions.
Strategic and Technical Backlink Types
20. Social Media Profile Backlinks
Your Facebook, LinkedIn, Instagram, and TikTok profiles should all include your website URL. These are nofollow, but they’re part of your brand’s digital footprint. Google crawls these profiles and uses them to verify entity information. Make sure the URL is correct and points to your preferred domain version (www vs. non-www).
21. Social Media Post Backlinks
Links shared in social posts don’t pass PageRank. But content that gets significant social engagement often earns organic backlinks because more people see it. A LinkedIn post that goes semi-viral in Singapore’s business community can put your content in front of bloggers and journalists who then link to it from their own sites.
22. Competitor Backlink Analysis
This isn’t a backlink type per se, but it’s the most important strategic exercise in link building. Pull your top 3 competitors’ backlink profiles in Ahrefs. Filter by dofollow links from DR 30+ domains. Export the list. Identify which links you could realistically replicate, such as directories they’re listed in, blogs they’ve guest posted on, and resource pages they appear on.
Action step: Run the “Link Intersect” report in Ahrefs. Enter your domain and 3 competitors. The tool shows sites linking to your competitors but not to you. That’s your outreach list.
23. Broken Link Building
Find pages in your niche that link to dead URLs (404 errors). Create content that matches or improves upon what the dead page offered. Email the site owner, let them know about the broken link, and suggest your content as a replacement. This works because you’re solving a problem for the webmaster, not just asking for a favour.
Tools like Check My Links (Chrome extension) or Ahrefs’ Broken Backlinks report make this process efficient. In my experience, broken link building converts at roughly 5 to 10%, meaning for every 100 outreach emails, you’ll land 5 to 10 links.
24. Internal Links
Technically, internal links aren’t “backlinks” in the traditional sense, but they’re essential for distributing link equity across your site. Every external backlink you earn lands on a specific page. Internal links spread that equity to your other important pages.
Audit your internal linking structure quarterly. Pages you want to rank should have the most internal links pointing to them, with relevant anchor text. If your top-performing blog post has 40 external backlinks but doesn’t internally link to your service pages, you’re leaving money on the table.
25. Scholarship Link Building
Creating a scholarship and getting it listed on university websites (.edu or .edu.sg domains) can earn extremely authoritative backlinks. Singapore’s universities, polytechnics, and ITEs maintain scholarship listing pages. A $500 annual scholarship can generate links from domains with DR 80+. The ROI, purely from an SEO perspective, is hard to beat.
Fair warning: Google has become more sceptical of scholarship link schemes. Make sure your scholarship is legitimate, properly administered, and actually awarded to a recipient. A fake scholarship page that exists solely for link building will eventually be flagged.
Building a Balanced Backlink Profile
The real skill isn’t knowing these 25 types of backlinks. It’s knowing how to combine them into a profile that looks natural and drives results. Here’s the ratio I typically aim for with Singapore business websites:
- 40 to 50% editorial and content-based backlinks (types 5 through 11)
- 20 to 30% business and community backlinks (types 12 through 19)
- 15 to 20% strategic and technical backlinks (types 20 through 25)
- 5 to 10% social and UGC signals (types 4, 14, 20, 21)
If your profile is 80% directory links and 20% forum comments, Google sees that as unnatural. Diversification isn’t just a nice idea. It’s a ranking factor in practice.
What To Do Next
Start with an audit. Export your current backlink profile, categorise each link into one of these 25 types, and identify where the gaps are. Most Singapore businesses I audit are over-indexed on directory links and severely under-indexed on editorial and content-based backlinks. That gap is usually where the biggest ranking gains are hiding.
If you’d rather have someone handle the technical analysis and outreach, that’s what we do at Best SEO. We build link profiles methodically, focusing on relevance, authority, and the kind of diversity that keeps your rankings stable through algorithm updates. We back it with a 90-day page 1 guarantee, so there’s no risk on your end.
Reach out for a free backlink audit and we’ll show you exactly where your link profile stands and what it’ll take to close the gap.
Frequently Asked Questions About Types of Backlinks
How Many Backlinks Do I Need to Rank on Page 1 in Singapore?
There’s no universal number. It depends entirely on keyword difficulty and your competitors’ link profiles. For a low-competition local keyword like “custom cake delivery Tampines,” you might need 5 to 10 quality backlinks. For “best insurance Singapore,” you’re looking at hundreds from high-authority domains. Always benchmark against the sites currently ranking, not an arbitrary target.
Are Paid Backlinks Worth the Risk?
Buying links violates Google’s guidelines and carries real risk, including manual penalties that can tank your traffic overnight. If you do engage in sponsored content, ensure links are properly tagged with rel="sponsored". The safest approach is investing that budget into creating linkable content that earns backlinks organically.
How Do I Identify and Remove Toxic Backlinks?
Use Ahrefs, SEMrush, or Google Search Console to review your backlink profile. Look for links from sites with no organic traffic, sites in unrelated languages, or domains with spammy characteristics (excessive outbound links, thin content, gambling or adult content). You can submit a disavow file through Google Search Console, but only disavow links you’re confident are harmful. Over-disavowing can hurt you just as much as toxic links.
How Long Does It Take for a New Backlink to Impact Rankings?
Typically 4 to 12 weeks, depending on how frequently Google crawls the linking page. Links from frequently updated, high-authority sites tend to be discovered and indexed faster. You can speed up the process by ensuring the linking page is indexed in Google Search Console.