"Readability level" refers to the difficulty or ease with which a text can be read and understood. It indicates how easy or challenging the language and structure of a written piece are for the intended audience. Full definition
The researchers found that within the sample, the median readability level of all website categories was higher than recommended, requiring at least 13 years of education to be comprehended (only 58 percent of the adult U.S. population has attained this level of education). (sciencedaily.com)
Yes, Ogment will provide a Lexile as well as several other readability levels for materials you clip from the web. (getogment.com)