What Makes a Good Backlink? How to Judge a Link Before You Accept or Pay for It (2026)

Quick answer

A good backlink is one that a real person on a relevant site had a reason to place, on a page that gets actual visitors, using text that describes where it goes.

Everything else, including Domain Rating, Domain Authority and the price on a vendor’s rate card, is a proxy for that. Proxies are useful for filtering a list. They are not the decision.

This guide is the decision part: a scorecard for judging one specific link opportunity, what Google’s policies say about paid and placed links, and how to spot the offers that get sites into trouble.

If you need the basics first, read what are backlinks, which covers definitions, types and how to check your profile.

Start with what Google actually says

Two statements set the boundaries.

Links matter for discovery. Google’s SEO starter guide states: “The vast majority of new pages Google finds every day are through links.”

Manipulating them is spam. Google’s spam policies, last updated 28 August 2026, define link spam as “the practice of creating links to or from a site primarily for the purpose of manipulating search rankings.” The listed examples include:

• Buying or selling links for ranking purposes
• Exchanging goods or services for links
• Automated programmes or services that create links
• Excessive link exchanges

Note what is not banned. Google adds that “buying and selling links is a normal part of the economy of the web for advertising and sponsorship purposes.” The condition is disclosure through link attributes.

The three attributes, in Google’s words

Google treats these as hints rather than absolute rules: “Links marked with these rel attributes will generally not be followed. Remember that the linked pages may be found through other means, such as sitemaps or links from other sites, and thus they may still be crawled.”

Google also notes that for paid links, “The nofollow attribute was previously recommended for these types of links and is still an acceptable way to flag them, though sponsored is preferred.”

What this means in practice: a paid link that is correctly marked sponsored is legitimate advertising, and it is also unlikely to pass ranking value. A paid link left as a normal followed link is link spam under Google’s own definition. Any vendor selling “dofollow guest posts” is selling the second thing while describing it as the first.

The 10-point backlink scorecard

Use this on a single link opportunity. Score each line 0, 1 or 2. Anything under 12 is usually not worth the effort or the money.

The last line is the one experienced SEOs use first. A link that could realistically send you a customer is a link Google is comfortable counting.

The metrics, and what they are actually worth

One rule that saves money: a page with genuine organic traffic and a small number of relevant outbound links beats a high DR page with none. Metrics are how you shortlist, not how you decide.

Where good links actually come from

The realistic sources for a Singapore business, roughly in order of how often they work:

• Customers, suppliers and partners. The partner page, the supplier directory, the case study your client publishes. Cheapest and most under-used.
• Industry associations and chambers. Membership directories, event pages, committee listings.
• Original data. A survey, a price benchmark or a set of numbers from your own operations that journalists and bloggers need to cite.
• Expert commentary. Responding to journalist requests with a usable quote and a named expert.
• Local and trade publications. Business and technology outlets covering Singapore and the region.
• Tools and calculators. Something genuinely useful that people link to because it saves them work.
• Sponsorships and events. Legitimate, and correctly marked sponsored.
• Educational and government collaborations. Polytechnic projects, grant programmes, industry initiatives.

Notice what is missing: bulk guest posting, directory blasts and private blog networks. They are cheap because they are worth what you pay.

Red flags in a link vendor offer

If you are buying links or hiring an agency that does, these are the signals worth stopping on:

1. A fixed number of links per month at a fixed price. Quality is not produced on a schedule.
2. “Dofollow guaranteed”. Selling followed links for ranking purposes is exactly what Google’s policies describe as link spam.
3. No sample sites before payment. You cannot judge a link you cannot see.
4. A rate card by DR band. Pricing by metric means the metric is the product, not the placement.
5. Sites with hundreds of unrelated posts. Google’s scaled content abuse policy covers “many pages generated for the primary purpose of manipulating search rankings and not helping users”.
6. Placement on a strong site’s subfolder. Google’s site reputation abuse policy targets third-party content published on a host site “mainly because of that host’s already-established ranking signals”.
7. Expired domains with new content. Google’s expired domain abuse policy covers buying a domain and repurposing it “primarily to manipulate search rankings by hosting content that provides little to no value”.
8. Reciprocal schemes. “Link to me and I will link to you” is on Google’s examples list.
9. Anchor text supplied as an exact keyword list. Real editors do not write that way.
10. No mention of disclosure. If the vendor has no answer about sponsored, they are selling undisclosed paid links.

What to do about links you already have

Do not rush to disavow. Google has said for years that most sites never need the disavow tool, because it ignores links it does not trust rather than penalising for them. Use it only when you have a manual action for unnatural links, or a clear pattern of paid or spam links you or a previous agency built.

A sensible order:

1. Export your links from Search Console and a backlink tool.
2. Sort by referring domain, not by individual link.
3. Flag patterns, not one-offs: hundreds of links from one network, foreign-language spam, sudden spikes.
4. Try removal first for anything you or a vendor placed.
5. Disavow at domain level only what you cannot remove and genuinely believe is manipulative.
6. Keep a record of what you disavowed and why.

Our complete SEO audit checklist covers where this fits in a wider review, and the off-page SEO guide covers the work that earns links in the first place.

How many good links do you need?

There is no number, and any agency quoting one is guessing. The useful version of the question is comparative.

1. List the five pages currently ranking for your target search.
2. Check how many referring domains each has, and from where.
3. Compare with your page.

If the top five have 15 referring domains each and you have two, that is a content and links gap you can close in months. If they have 400 each, either pick a different search term or accept a multi-year programme. Our guide to competitor analysis for SEO walks through the comparison.

Frequently asked questions

What makes a backlink high quality?

Relevance to your topic, a page with real readers, an editorial reason for the link, placement inside the content, natural anchor text, and a site that looks like a real organisation.

Is Domain Rating a good way to judge backlinks?

It is a filter, not a verdict. DR and DA are third-party estimates that Google does not use. A page with genuine traffic and few outbound links is usually worth more than a higher-DR page with neither.

Are paid links against Google’s rules?

Paid links are fine as advertising when marked rel=”sponsored” or rel=”nofollow”. Paying for followed links to improve rankings is link spam under Google’s own definition.

Do nofollow links have any value?

They will generally not pass ranking signals, but they still bring referral traffic, brand visibility and the chance that someone else links to you without the attribute. Google also describes these attributes as hints rather than absolute rules.

How many backlinks do I need to rank?

There is no fixed number. Compare referring domains with the pages currently ranking for your target search, and plan from that gap.

Can bad backlinks hurt my site?

Google ignores most low-quality links rather than penalising them. The real risk comes from links you or a vendor actively built, which can trigger a manual action.

Should I use the disavow tool?

Only for a manual action or a known pattern of manipulative links you cannot remove. Most sites never need it.

What is the fastest legitimate way to get links?

Ask the people who already work with you. Suppliers, clients, partners and associations are the quickest genuine links most Singapore businesses can earn.

Getting links that stand up to scrutiny

MediaPlus Digital builds authority through digital PR, original data and relationships rather than link packages, with 13 years in the Singapore market, a team of 60 and more than 1,800 projects delivered. If an agency has been buying links on your behalf, we will tell you what we find in the audit.

See our SEO services in Singapore, or read what are backlinks if you are still getting to grips with the basics.

Google policy quotes verified 19 September 2026 from Google Search Central documentation, including the spam policies page last updated 28 August 2026 and the outbound link qualification guide last updated 10 December 2025.