When we analyse codes related to art-glass.ru web site, We determined that character length in meta description coding is 305 character. This code is a explanation code which gives short information about your internet site. Because search engines publish first 150 of meta description codes , Your writings will be seen incomplete and absurd. Thus , we advice you should shorten your too lont meta description code and you should use sensible sentence about your internet site. in the contrary your internet site can be penalized by search engines. If you use keywords in your meta description code, It will be very dangerous attitude for your internet site's future. We advice that you should write anything.