URL structure quietly determines whether your entire website succeeds or fails. Short, clean URL structures only matter because they influence crawl depth, internal linking, and how authority flows through your site. Hub pages always outrank their child pages because hubs sit closer to the homepage, get crawled more often, and accumulate far more internal links and backlinks. A page becomes a hub not because of its URL, but because the architecture, internal links, and backlinks all signal its importance. Clusters, silos, hubs + spokes, and entity attribute pairs are all similar concepts: grouping related pages under a single authoritative topic hub. Top-level hub pages must target broad, high-value keywords because every child page exists to reinforce the hub. Child pages only rank well when they live inside a strong topical cluster built around a powerful hub page. Top-level URLs rank better because they sit higher in the hierarchy and get discovered and recrawled more frequently. Hub pages attract dramatically more internal links and backlinks than any individual child page, amplifying their ranking power. Broad hub pages always rank for hundreds or thousands of keywords, while child pages can only rank for narrow intent queries. You must build both a broad hub page and many attribute-level child pages to maximize keyword coverage and dominate a full topic. Planning site architecture from the start guarantees the strongest results because you can build clean clusters without messy redirects. Changing URL structures on existing sites requires 301s and updating internal links, which introduces risk but can dramatically improve rankings when executed correctly. Structural URL layouts organize content by type, but they waste top-level pages that could be used for powerful ranking hubs. Structural hubs like “/tools” or “/generators” cannot rank for broad queries because search intent favors thematic, comparison, or solution-focused pages. If a top-level structural page cannot rank, every child page under it becomes weaker because the parent passes no authority downstream.