Online prescreening is a popular alternative to having a costly team of people sift through the countless résumés submitted daily. In fact, a Rocket Hire survey found that 95% of companies that make between 151 and 500 hiring decisions a year use a software screening tool. That means your résumé has to look good to software whereas you are likely preparing your résumé for a person. These electronic gatekeepers or prescreening tools are looking for keywords. They scan your résumé to see if you include the keywords they are programed to find. This is why customizing your résumé for each job you apply to is so important. A generic résumé is simply unable to relate to a specific job description.