Google employs a sophisticated algorithm that considers both content depth and backlinks, but their relative importance has evolved significantly. While backlinks remain a crucial signal of authority and trust, Google increasingly emphasizes high-quality, comprehensive content that genuinely satisfies user intent. Deep content, demonstrating expertise, authoritativeness, and trustworthiness (E-A-T), is essential for ranking well, as it directly addresses user queries thoroughly. Conversely, not all backlinks are equal; Google heavily scrutinizes their quality, giving more weight to links from reputable and relevant sources rather than sheer volume. Ultimately, Google aims to reward content that is both authoritative (backed by good links) and truly valuable and useful (deep content) to the end-user. A synergistic relationship exists where exceptional content often naturally attracts quality backlinks, reinforcing its depth and credibility in Google's eyes. More details: https://info-ai.top