Disdvantages to Using Frames Frames are not supported by all browsers. Some search engines cannot index framed sites. Entry pages must be created for these search engines. Frames often slow the pace site loading. Multiple frames takes longer to load in a window than a single HTML page.
Frames are hard for visitors to get rid of.
Frames always reduce the viewable space. This is particularly important on smaller monitors where space is a premium. Unless implemented properly, framed-pages are very hard to bookmark. This can be a major headache to visitors wanting a specific page on your site. Virtually none of the large, professionally designed sites use frames.