High Quality Backlinks: A Seven-Question Test You Can Score

Quick answer: High quality backlinks are links a real person might click, placed by an editor on a related page of a genuine site with its own audience, ideally in your customers’ neighbourhood. Score any link against seven plain questions. A link that passes with a modest authority score beats a high-score link that fails.

Ask five people what high quality backlinks are and four will give you a number: “DA 40 and above”, “DR 50 plus”, “authority score over 30”. A backlink is simply a link on another website pointing to yours, and the number they quote is a third-party estimate of how strong the linking site is. It is a convenient shorthand. It is also the reason so many Singapore businesses end up paying for links that do nothing.

This post gives you something more useful than a threshold: a scoreable test. Seven plain questions, each scored 0, 1 or 2, that you can run on any link in a few minutes without a paid tool. We will walk through each question, then score four real-world link types side by side, including a Singapore trade association listing and a high-authority overseas guest post. If you want context on where link work sits inside a full programme, our SEO services page covers that. Here the focus is narrow: how to tell, quickly and defensibly, whether a specific link is worth having.

Why “DA 40+” Is Not a Definition of High Quality Backlinks

Domain Authority (DA) is a score from Moz. Domain Rating (DR) is a score from Ahrefs. Authority Score comes from Semrush. Each one is a third-party estimate, built by a software company crawling a slice of the web and modelling how strong a site’s own link profile looks. None of them is used by Google. Google has said publicly, more than once, that it does not use these scores, and it has no reason to: it has its own, far larger index and its own signals that no outside tool can see.

That does not make the scores useless. They are a reasonable first filter for spotting a site that has no links at all. The problem starts when a score becomes the definition of quality rather than one clue. Once a business, or an agency proposal, says “we want DA 40+ links”, it has created a target that can be manufactured. Sites exist whose entire purpose is to hold a high score and sell placements. Their DA is real in the sense that the tool reports it. Their value to you is close to nil.

Most agencies will tell you that a DA threshold protects you from bad links. In Singapore, that advice frequently backfires, for a specific reason: the most relevant sites in a small market often have modest scores. A local industry association, a polytechnic department page, a heartland business chamber or a niche Singapore trade publication may sit at DA 20 to 35. A threshold of 40 filters out exactly the links that are most likely to help a local business, and lets through overseas sites that have no connection to your customers at all. That same local layer of links is what local SEO depends on.

When we audited link profiles bought on a threshold basis, the pattern was consistent. The scores were high, the linking pages were off-topic, the sites had little or no organic traffic of their own, and the links sat in articles nobody would ever read. Every link passed the brief. Almost none passed the questions below. The scores were never lying; they were just answering a different question from the one the business needed answered.

The Seven-Question Rubric for High Quality Backlinks

The rubric replaces one number with seven judgements. Each is scored 0 (no), 1 (partly) or 2 (yes), giving a maximum of 14. The questions are deliberately plain so that a business owner, not just an SEO specialist, can apply them.

Reading the total:

• 11 to 14: a strong link. Protect it, and look for more like it.
• 7 to 10: a useful link. Worth keeping and worth pursuing if the cost is low.
• 0 to 6: a weak link. Do not pay for it, do not chase it, and do not count it as progress.

There is also one knockout rule. If a link exists only because money or goods changed hands for ranking credit and it is not marked as sponsored, it fails regardless of score. Google’s spam policies treat that as a link scheme, and the risk outweighs any points it might earn elsewhere on the scorecard.

Notice what the rubric does not contain: any authority score. Question 6 exists precisely to strip that number out and ask whether anything is left underneath it.

How to Score Each Question Without Guessing

The rubric only works if scoring is consistent. These are the checks we use for each question, all of which can be done with a browser and a free tool or two.

1. Real click (Q1). Read the paragraph around the link as if you were the intended reader. Does the link answer a question the text raises? A link to your renovation permit guide inside an article about HDB renovation rules passes. The same link dropped into a paragraph about travel insurance does not.
2. Topical relevance (Q2). Look at the page, not just the homepage. A general business site can still host a page squarely about your topic. Judge the page the link sits on.
3. Real site and audience (Q3). Check whether the site publishes regularly, has named authors, gets comments or social shares, and ranks for anything. A free traffic estimate from any SEO tool is enough to see whether organic traffic is near zero.
4. Neighbourhood (Q4). Is the site written for people in Singapore, or for your buyer type? A Malaysian industry portal read by your B2B customers can score 1. A Singapore lifestyle blog read by consumers you do not sell to also scores 1.
5. Editorial placement (Q5). Where on the page is the link? Body content chosen by an editor scores highest. Curated member directories and resource lists score 1. Sitewide footers, author bios on paid posts and comment links score 0.
6. Strip the score (Q6). Cover the DA or DR figure with your hand. If the only argument for the link disappears, score 0.
7. Repeatability (Q7). Ask how the link happened. A membership, a supplier relationship or a journalist who now knows you is repeatable. A once-off favour is not.

The scoring is not about precision. Two people scoring the same link should land within a point or two of each other, and that is enough to separate a strong link from a weak one. In our experience, owners who score ten of their own links get the hang of the rubric quickly, and they stop asking “what is the DA?” because the questions give them a better answer.

For sites where the link profile is not the only problem, scoring links should sit alongside a technical SEO check, because even a strong link cannot help a page that Google struggles to crawl or index.

Worked Examples: Four Links, Scored Side by Side

Here are four link types that come up repeatedly in Singapore link profiles. The authority figures are typical ranges, not specific sites.

The trade association member page is the one most often undervalued. Take a contractor listed in the member directory of an industry body such as the Singapore Contractors Association, where the directory links out to member sites. Prospective clients and main contractors genuinely browse these lists to check who is registered. The score is modest. The relevance, audience and neighbourhood are almost perfect, and renewing membership keeps the link. Our contractor SEO work leans on exactly this type of link.

The local news mention scores well but slightly lower on repeatability: you cannot book coverage in The Straits Times or CNA on demand. A mention in a story about your sector is still among the strongest links a Singapore SME can hold, because it is editorially placed on a site with a large local audience.

The overseas guest post farm is the cautionary tale. These sites carry a respectable DA and publish “guest articles” on every topic from crypto to cat food. Nobody reads them, the topics are unrelated, the audience is not in Singapore, and the only reason to want the link is the number. It scores 1 out of 14, and only because you could buy another one tomorrow.

The supplier page is the quiet winner. When a brand you stock lists you as a Singapore stockist, real buyers click through to find you.

Why a Modest Link That Passes Beats a High Score That Fails

The worked examples point to the conclusion this post is built on: quality is relevance plus genuine audience. A link that passes the rubric with a DA of 22 is worth more than a DA 60 link that fails it. That is not a sentimental preference for small local sites. It follows from how links help at all.

A link helps in two ways. The first is referral traffic: people clicking through. The second is ranking credit: search engines treating the link as evidence that another site vouches for yours. Both depend on the same underlying conditions. Referral traffic needs real readers who care about the topic, which is what questions 1, 2 and 3 test. Ranking credit, as far as Google has described its approach, rewards links that look like genuine editorial endorsements from relevant sources, and it works hard to discount links that look manufactured. A guest post farm fails both tests at once: no readers, and every sign of manufacture.

Conventional wisdom says a high-authority link “passes more power”, so even an irrelevant one must be worth something. The trouble is that sites built to sell links are exactly the kind Google’s systems are designed to recognise and ignore. A link that is ignored passes nothing, whatever a third-party tool says about the domain.

We’ve seen this play out when comparing profiles side by side. Two Singapore businesses in the same category, one with a long list of high-DA overseas placements and one with a shorter list of local associations, suppliers and press mentions. In most of the cases we have looked at, the second business held the stronger local rankings, and it was the one whose links actually sent visitors.

This is also why the rubric matters for budgeting. A small business SEO budget in Singapore rarely stretches to more than a handful of good links a quarter. Spending it on links that score 11 or higher is the difference between building an asset and buying a number.

Knockouts, Grey Areas and Edge Cases

Real link profiles are messier than four tidy examples. These are the cases that come up most when businesses start scoring their own links.

Nofollow and sponsored links. A nofollow attribute is a tag that tells search engines not to treat a link as an endorsement; a sponsored attribute marks a paid placement. Google now treats these as hints rather than strict rules, but you should not count on them passing ranking credit. A nofollow link can still score well on questions 1 to 5 because it sends real visitors. Score it honestly and note that its value is mostly referral and brand, not rankings.

Directories. Most general directories score poorly on Q1, Q2 and Q3. A small number of curated, Singapore-specific or industry-specific directories that real buyers use can score 7 or more. The test is whether anybody would ever search that directory to find a supplier like you. Which directories pass varies a lot by sector, and our industry SEO page covers how that differs across Singapore verticals.

Press releases on wire services. These usually score low on Q5 and Q7, because the placement is paid and the syndicated copies sit on pages nobody visits. The exception is when a journalist picks up the release and writes a genuine story; that story is the link worth scoring.

Links from your own network. Sites you or a related company own are not independent endorsements. Score Q6 at 0 unless the site has an audience that genuinely wants the link.

Regulated sectors. In healthcare, finance and legal services, links from professional bodies and accredited institutions carry extra weight with readers, and inappropriate placements carry extra risk. For medical SEO in particular, check any link activity against the relevant MOH advertising guidelines and your own compliance process before pursuing it.

A useful habit: when a link sits on the borderline, around 6 to 8, ask what it cost. A borderline link that arrived free through a relationship is worth keeping. A borderline link that costs real money is usually a no.

Using the Rubric Before You Spend, Not After

The best time to score a link is before you pay for it, pitch for it or approve it in an agency report. Scoring after the fact tells you what went wrong; scoring before tells you where to put effort.

At the prospecting stage, score categories rather than individual sites. Trade associations, suppliers, local press, polytechnic and university pages, event organisers and complementary businesses tend to score high. Overseas “write for us” sites and generic link marketplaces tend to score low. That one exercise usually reshapes the target list.

At the approval stage, ask your provider to show the rubric score for each proposed placement alongside, or instead of, its DA. A provider who cannot tell you why a person would click a link has not thought about it. Our pricing is structured around effort and quality rather than a monthly link count for this reason.

In reporting, replace “average DA of new links” with “share of new links scoring 11 or more”. It is a harder number to inflate and a better predictor of whether the profile is improving.

In our law firm SEO case study, the client was a general practice law firm with 4 solicitors in Tanjong Pagar, Singapore, on a 7-month engagement. Link building was Phase 5, running in months 4 to 7, and its make-up reads like a list of links that would do well on this rubric: contributed articles on two Singapore legal information platforms, editorial mentions in Singapore SME resource articles covering employment law updates, and three directory submissions to Law Society-recognised directories. Every placement was editorially reviewed, and none was paid for.

Run through the rubric, those placements score well on Q2 (related topic) and Q4 (neighbourhood), because they sit in Singapore’s legal and SME information space, and on Q5, because each one was editorially reviewed rather than bought. The case study makes the same point in its own words: for law firms, links from legal-adjacent sources carry stronger domain relevance signals than general business links.

To be clear about causation, links were one of five phases. The same engagement created six dedicated practice area pages, published 16 legal articles, claimed and optimised the Google Business Profile, resolved 34 crawl errors and lifted the mobile Lighthouse score from 52 to 81. The results above came from that whole programme, not from links alone. What the link phase does show is this post’s argument in practice: the firm finished the engagement at a Domain Authority of 18, far below any “DA 40+” brief, and still reached the top 3 for 3 practice area terms with a link profile built on relevance and editorial placement rather than a score.

Field notes: Scored against this rubric, the link phase in our law firm case study passes on audience, relevance and editorial placement. In Months 4-7 the firm contributed articles to two Singapore legal information platforms, gained editorial mentions in Singapore SME resource articles covering employment law updates, and made three directory submissions to Law Society-recognised directories. All placements were editorially reviewed, with no paid link placement. The case study notes that for law firms, legal-adjacent sources carry stronger domain relevance signals than general business links, which is exactly what the audience and neighbourhood questions test for. Score your existing links the same way before buying more against a DA or DR threshold.

Our Take

High quality backlinks are not a number on a dashboard. They are links that a real person might click, on a related page of a genuine site with its own audience, placed by someone who chose to include them, ideally in the same neighbourhood as your customers, and earned in a way you could repeat. Quality is relevance plus genuine audience.

Third-party authority scores are useful estimates, not Google’s view, and treating them as the definition invites you to buy links built to satisfy the definition. A link that passes the rubric with a modest score will beat a high-score link that fails it, both for referral traffic and for ranking credit. Score your existing links first, then use the rubric to decide where the next quarter’s effort goes. Our about page explains how we apply this thinking across client programmes.

Frequently Asked Questions

What are high quality backlinks?

High quality backlinks are links from genuine, relevant websites with their own audience, placed editorially in content where a reader might actually click them. The best ones also sit in your geographic or customer neighbourhood and come from relationships you can repeat. Authority scores like DA or DR can be a rough first filter, but they do not define quality. A useful way to judge any link is to score it against seven plain questions about clicks, relevance, audience, neighbourhood, placement and repeatability.

Is DA 40 or above a good threshold for quality?

No, not on its own. Domain Authority is a third-party estimate from Moz, and Google does not use it. A threshold is easy to game, because sites exist purely to hold high scores and sell placements. In Singapore, a DA 40 cut-off also tends to exclude the most relevant local links, such as trade associations and niche publications, which often score between 20 and 35. Use authority scores as one clue, not as the definition.

Does Google use Domain Authority or Domain Rating?

No. Domain Authority belongs to Moz, Domain Rating to Ahrefs and Authority Score to Semrush. Each is calculated from that company’s own crawl of the web. Google has stated publicly that it does not use these metrics. It assesses links with its own systems and a far larger index. The tools are helpful for comparing sites quickly, but treat their numbers as estimates rather than as a view of how Google sees a link.

How many high quality backlinks does a Singapore small business need?

There is no fixed number, because it depends on how strong competing sites are for your terms. In many local categories, a handful of links that score 11 or more on the rubric each quarter is enough to make steady progress, because local competitors often have thin profiles too. Look at the businesses ranking above you, score a sample of their links, and aim to match the quality rather than the raw count.

Are nofollow links worth getting?

Often, yes. A nofollow link tells search engines not to treat it as an endorsement, and Google treats this as a hint, so you should not rely on it for ranking credit. But a nofollow link from a relevant site with a real audience can still send visitors, build brand recognition and lead to further followed links. Score it on the rubric as normal and treat its value as mostly referral rather than rankings.

Can a low DA link really be better than a high DA link?

Yes. A Singapore trade association member page at DA 25 that real buyers browse, on a related topic, in your market, scores far higher on relevance and audience than a DA 60 overseas guest post that nobody reads. Links help through referral traffic and ranking credit, and both depend on relevance and genuine readership rather than on a third-party score.

How do I check if a linking site has real traffic?

Look for signs of an active audience: regular new content, named authors, comments, social shares and pages that rank for real search terms. Most SEO tools offer a free organic traffic estimate for any domain, and a site with near-zero estimated traffic but a high authority score is a warning sign. Also check whether the site publishes on every topic imaginable, which usually means it exists to sell placements rather than to serve readers.

Should I buy backlinks if they score well on the rubric?

Paying for a link that passes ranking credit, without marking it as sponsored, breaches Google’s spam policies, so it fails the rubric’s knockout rule regardless of score. Genuinely paid placements such as sponsorships or advertorials should carry a sponsored attribute and be judged as advertising for reach and brand. The links that score highest on the rubric are usually earned through memberships, suppliers, press and useful content rather than bought.

How often should I score my backlink profile?

A full scoring once or twice a year is enough for most small and mid-sized businesses, with new links scored as they arrive. Focus on the links that matter: your top referring domains, anything newly acquired and anything a provider has reported as progress. The goal is to see what share of your profile scores 11 or more, and whether that share is growing over time.

What should I ask an agency about link quality?

Ask them to explain, for each proposed link, why a real person would click it, what the linking page is about, whether the site has its own audience, and how the link would be earned. If the only answer is a DA or DR figure, push back. A good provider should also confirm in writing that they do not buy links for ranking credit and that you will see the prospect list.