A small logo is acceptable, but large images, numerous icons, and textured backgrounds cost download speed and bandwidth. Reflects how well the server make efficient use of HTML Forms in the search interface and in feedback links. The abbreviated name of the Web Index. The organization of the links, including number and depth of subjects, as well as cross-references and general ease of use. Users can expand or restrict databases searches by entering more than one keyword.
Additional controls are often necessary for flexible control over the query.
For servers that allows Boolean Searching , this field reflects the sophistication of the feature. Many servers automatically join keywords with Boolean AND or Boolean OR, but only Alta Vista and EINet Galaxy supports complex criteria. The ability to select a document based on the proximity of the keywords in the text. As a rule of thumb, this means that documents with incidental keyword matches will be rated lower than others with highly relevant content. In selecting highly related keywords, it may be desirable to treat them as a single word phrase to encourage the search engine to find them together.