Site architecture: How a site’s pages are organised and linked together: its sections, its menus, its hubs and the paths between them. It decides how deep each page sits and which pages look important.
Why it matters
Architecture decides three things: how many clicks each page is from the home page, which pages collect the most internal links, and whether a reader can work out where they are. A cooking site whose menu reads Recipes › Bread › Sourdough tells everyone how the site is organised. A site whose only navigation is a reverse-date blog roll leaves older posts buried, however good they are.
Google’s SEO starter guide suggests grouping similar topics in directories, but it also says not to drop everything and reorganise your site. Structure helps, but changing URLs on an established site has real costs.
The parts in WordPress
- Menus (Appearance › Menus, or the Navigation block in block themes): your most prominent links, so give them to your hub pages.
- Categories and tags: categories for the main sections, tags used sparingly. A tag with one post is a thin page, not structure.
- Breadcrumbs, usually from your theme or SEO plugin, linking each post one level up.
- Permalinks (Settings › Permalinks): change them on a live site only with redirects in place.
- Contextual links in the content itself, which do the most specific work and are the ones most often missing.
How to check it
Crawl the site from the home page and look at the click depth of your most important pages, the pages with the fewest inbound links, and any orphans. If a money page or a flagship guide is at depth 5, the architecture is hiding it. Whether you organise around topic clusters or a stricter model, the guide to structuring a site by topic and the click depth walkthrough cover how to plan and measure it.