Full Definition
A backlink (also called an inbound link) is created when one website links to another. If an established news site writes about your business and includes a link to your homepage, that is a backlink. Google's original ranking breakthrough — PageRank — was built on the insight that a page with many trusted sites linking to it is probably a reliable source of information. Not all backlinks are equal. A single link from a well-respected industry publication is worth far more than fifty links from low-quality directories. What matters is the authority, relevance, and context of the linking page. A backlink from a marketing trade journal is gold for a digital agency; a link from a random recipe site is almost worthless. Links with spammy or irrelevant sources can actually hurt your rankings. Google's Penguin algorithm was specifically designed to penalise manipulative link schemes like paid links or link farms. For most small and medium businesses, the best backlinks come from: being featured in local press, getting listed in genuine industry directories, writing guest articles for niche publications, or being mentioned in roundup posts. Actionable tip: Search your competitors' brand name in Ahrefs or a free alternative like Ubersuggest. The sites linking to them are your first prospecting list — reach out and earn your place on those pages too. How a backlink fits into a campaign: suppose a Chandigarh dental clinic publishes a guide to what to expect at a first check-up. On its own the guide may rank slowly, because few people know it exists. The clinic then shares it with a parenting blog and a local health directory, and both link to it where it genuinely helps their readers. Those links bring a trickle of relevant visitors straight away, and they tell Google the guide is worth surfacing for related searches. The sensible order is content first, outreach second: a link points at a page, so that page has to earn it. Track which links you gain in Google Search Console, and watch whether the pages they point to start picking up more impressions.