What Is a Backlink? Eight Ways to Earn Quality Links
Backlinks are among the strongest ranking factors in SEO. What makes one good, how do you earn them, and which tactics carry risk?
What Is a Backlink?
A backlink is a link from another website to yours. Google treats these links as a form of vote — if someone links to you, they presumably think the content is worth pointing at.
In the 1990s this worked much like counting votes. It is far more nuanced now. Google looks at where each backlink comes from, the linking site's authority, the anchor text and the surrounding context.
Why They Matter So Much
Independent research from Moz and Ahrefs points the same way: backlinks from high-authority domains are among the strongest factors affecting ranking. Even excellent content can struggle to reach the top for competitive keywords with a thin backlink profile.
Good Links Versus Bad Links
Not all backlinks are equal. Google weighs quality roughly like this:
A good backlink:
- Comes from an authoritative, trustworthy site
- Sits on a page related to your subject
- Appears naturally in context (an editorial link)
- Is marked "dofollow"
A bad or risky backlink:
- Comes from a spam network or link farm
- Sits on a page unrelated to your content
- Was paid for (Google prohibits this)
- Uses over-optimised anchor text
Bad backlinks can damage your ranking. Google's Penguin algorithm penalises profiles like these.
Eight Ways to Earn Quality Links
1. Guest Posting
Write for blogs or news sites in your industry and earn a link back. Effective but time-consuming. Important: target genuinely good sites only — low-quality "guest post farms" will hurt you.
2. Broken Link Building
Look at competitor sites and resource pages. When you find a link returning a 404, write something equivalent and let the site owner know. "Your link is broken and we have something similar" converts reasonably well.
3. Resource Pages and Directories
Aim to be listed on "best resources for [industry]" pages. These get updated regularly and link out to good sources. Email the owner about the resource you have.
4. Publish Original Research and Statistics
Original research, surveys and statistics are the content types that attract the most links. Figures drawn from your own data get cited by other writers.
5. Digital PR — Get into the News
Do something newsworthy and tell local papers, trade publications or news agencies about it. A single news link can be worth dozens of purchased ones.
6. Supplier and Partner Links
The brands you work with, your suppliers, the associations you belong to — most have a "partners" or "members" page. Asking to be added is entirely legitimate and effective.
7. Comments and Forums (Use With Care)
Give genuinely useful answers in industry forums, on Reddit or on Quora. Link to your site only where it actually fits. Comments that read as spam get deleted and damage your reputation.
8. Analyse Competitor Backlinks
Study your competitors' backlink profiles. Tools like Ahrefs, SEMrush and Moz show where their links come from. You can often reach the same sources — it is the fastest way to find opportunities.
What to Avoid
- Buying links: Google explicitly classes this as a violation. When detected, rankings can fall sharply.
- PBNs (private blog networks): artificial link networks may work briefly, but Penguin updates find them regularly.
- Automated link tools: hundreds of low-quality links appearing at once attracts exactly the wrong attention.
Monitoring Your Backlink Profile
The "Links" section of Google Search Console shows the domains linking to you, free of charge. Ahrefs and SEMrush give deeper analysis but cost money. Get into the habit of checking monthly — harmful links can be reported to Google with the disavow tool.
In Short
Earning backlinks is a long game. The fast, easy routes are usually the risky ones. The real strategy is producing content that deserves links, then getting it in front of the right people. A handful of quality backlinks beats hundreds of poor ones.