We determined that character number at meta description code section of qlcl.edu.vn web site is 182 character. Character number at meta description code section of your web site is seen to long. Search engines see the sentence which is written to meta description code, part which has internet site's content and explanation and It displays it in search result pages. Because your sentences are shown half in search engines result pages, Your internet site's quality may drop. To get more visitors and to raise your awareness in internet media , you should decrease your your meta description character length to 150 characters.