Limit the size and quantity of graphics on your page. Large and numerous images increase the size of your page and then increase the download time. Use image height and width attributes. Tables with empty columns can add necessary white space to your page, making it more readable. Avoid using frames.
Frames make it difficult to bookmark pages, to navigate between pages, and to print pages.
Periodically check your links. If you find broken links, remove or update them. A Web page analysis tool that retrieves an HTML page and reports any problems. Similar in functionality to Web Site Garage. Analyzes single Web pages for their accessibility to people with disabilities.