A backlink is a link from another website to yours, and search engines treat it as a vote of confidence. Backlinks remain one of the strongest ranking signals, but in 2026 the relevance, trust and honesty of a link matter far more than the raw number.
What are backlinks?
A backlink, also called an inbound link, is simply a link pointing from another website to a page on yours. The clickable words of that link are its anchor text, which gives search engines a hint about what the linked page is about. Backlinks are different from internal links, which connect pages within your own site. The idea behind them is old and simple: if lots of trustworthy sites link to a page, it is probably worth surfacing.
Do backlinks still matter?
Yes, despite the regular claims that they are dead. Links from relevant, trusted sites are still one of Google's core ranking signals. What has changed is where the value sits. Google has spent years discounting manipulated and low-quality links and rewarding genuine ones, so the game is no longer how many links you can amass. It is how relevant and trusted the few that count really are. A handful of real editorial links from respected sites in your field beats hundreds of spammy ones, every time.
What makes a good backlink?
Not all links are equal. The ones worth having share a few traits:
- Relevance. A link from a site or page about your topic carries more weight than one from an unrelated site.
- Trust and authority. A link from a reputable, established site counts for more than one from an obscure or spammy source.
- Editorial. The best links are given because your content genuinely deserves them, not bought, swapped or self-placed.
- Placement. A link inside the main content is worth more than one buried in a footer or sidebar.
- Natural anchor text. Varied, natural wording is healthy. The same exact-match keyword across many links looks manipulative.
- Followed, usually. A normal followed link passes signals; a nofollow, sponsored or ugc link generally does not, though it can still bring traffic and visibility.
How do you earn backlinks?
The durable approach is to earn links, not chase them: publish genuinely link-worthy content, earn coverage through digital PR and original research, contribute to relevant reputable sites, turn unlinked brand mentions into links, and reclaim ones you have lost. Google's guidance on people-first content is the foundation, because people link to things that help them. For the step-by-step on each tactic, see how to earn backlinks.
What should you avoid?
Shortcuts that manipulate links are the fastest way to a penalty. Google's link spam policies specifically target:
- Buying or selling links to influence rankings.
- Excessive link exchanges, the "link to me and I will link to you" trade.
- Private blog networks and automated link-building services.
- Low-quality directory, bookmark and widget links.
- The same link pushed into footers or templates across many sites.
Paying for placement is fine when it is genuine advertising or sponsorship, as long as you disclose it with rel="sponsored" or rel="nofollow". The line Google cares about is whether the payment is meant to pass ranking signal.
Do backlinks help you in AI search?
Indirectly, and this is where backlinks meet Answer Engine Optimisation. Answer engines lean heavily on trusted third-party pages, so links and mentions on reputable sites help them recognise and trust your brand as an entity, which supports being cited. The key difference: for an AI citation, a mention on a trusted page can matter even without a followed link. So think in terms of presence, not just link equity, which is exactly the third-party presence lever in getting cited by ChatGPT and Perplexity.
How do you measure backlink impact?
Counting links is not measuring impact. What matters is whether a link actually moved rankings or traffic for the page it points to, judged over time and against normal fluctuation. Limecube's Backlink Orders do this for you, verifying each link and tracking the ranking movement it produced. For how to measure it properly, the time windows to use, how to separate real impact from noise, and what to do about lost links, see how to measure backlink impact.