Is the page organized and focused? Is it well-designed? A well-designed, professionally prepared web page may be a sign that the information contained on it is reliable, but not always. Is the text well written? Spelling and grammatical errors are a red flag that the page you are on is not professional or scholarly. Are the links relevant and appropriate? Do the links work. If not, this is a sign that the site is not maintained. Illustrations should be clear in intent, relevant and professional looking. They should enhance the content and not clutter the page.