They are customarily featured on the front page and every internal page. Primary links should giver users a sense of the breadth of your site while guiding them toward topics that will be interesting and useful. Each primary link takes a visitor to a major section of the site. The front page of this section is an opportunity to inform the visitor about why that section exists and what it contains. It is often used to summarize and organize the information inside.
Many organizations wonder what an appropriate number of major sections for a site is.
Generally, an ideal number of primary links is around seven. This will vary according to the breadth of information in the site, as well as the clarity of its design. A well-designed page may be able to support many as a dozen primary links without becoming cluttered. A common, and often confusing, practice is to lay out the site's primary sections as a reflection of the organization's internal structure. This can work in organizations with only a few major departments.