Backlinks remain a core ranking signal because they function as votes of confidence from other websites. Google's algorithm interprets links from authoritative, topically relevant sites as endorsements of your content quality and trustworthiness. Sites with strong backlink profiles consistently outrank competitors with weaker link profiles, all else being equal. The impact varies by link quality. A single link from a government site (.gc.ca), university (.edu), or major news outlet can move rankings more than dozens of directory links. Google weighs the linking domain's authority, topical relevance to your content, anchor text diversity, and whether the link appears in editorial content versus footers or sidebars. Links from sites in your niche carry more weight than unrelated sources. Quantity matters less than quality, but you need both at scale. A new Ottawa business site might see ranking improvements from 10-15 quality local links, while competing nationally requires hundreds of backlinks from diverse, authoritative sources. The specific threshold depends on your industry's competitiveness and existing domain authority. Risks exist with poor link building. Google penalizes manipulative patterns like bulk directory submissions, paid link schemes without nofollow tags, or link farms. A Penguin penalty can tank rankings for months. Link velocity spikes that look unnatural also raise flags. At Ottawa SEO, we've seen backlinks make the difference between page two and top three rankings countless times, particularly for competitive commercial keywords. We focus on editorial links through digital PR, content partnerships, and genuine relationship building rather than scalable-but-risky tactics. For our portfolio sites, we track referring domains, domain rating trends, and toxic link ratios monthly because backlinks compound over time when built consistently. The short version: backlinks work, they're not going anywhere, but quality and naturalness matter more than raw numbers. Build them strategically or risk wasting effort on links that don't move the needle.