- Consistency of presentation and controls across the site
- Logical and natural organization of information: clear structure, systematic labels, clear and meaningful labels
- Contextual navigation: how much information is given for providing a context for the user (where is s/he in the site? where can s/he go? how can s/he go back?)
- Efficient navigation: the amount of time and effort the user needs to exert in order to move around the site
- Adequacy of feedback: are user interactions clear, are requests answered, do commands elicit the right response?
- Searchability: how effectively the site content can be sought in search engines