Text only versions of web pages used in an effort to secure high search engine rankings. Also called code swapping.
 
Once the desired ranking position is achieved, a web page designed for humans is swapped with the search engine friendly text page. Code swapping is the technical name for bait and switch.
 
Code swapping is considered a form of search engine spam. Don’t do it. Another major downside is that a search engine may revisit your site at any time after it has indexed the text only pages. If it indexes the real pages, the positions achieved by the text pages will most likely drop.
 
Or worse yet, you are discovered and your site is dropped from their index altogether. Not good.
 
Side Note: Fortunately, you don’t need to code swap to do well with the search engines. A highly qualified search engine marketer or Internet marketing consultant can attain excellent ranking results for you without controversial methods and tactics like code swapping or web page cloaking.