The DEMO version only includes 4 pages:
http://graderonline.com
http://graderonline.com/best-online-essay-grader-for-students.html
http://graderonline.com/excellent-assignment-grade-calculator-to-improve-your-assignment.html
http://graderonline.com/paper-grader-to-help-you-get-the-stellar-grades.html

It is possible to download these free files and install them on your server, so you can test how the site works.
Visit https://www.waybackmachinedownloader.com/en/buy-wayback-machine-downloader-recover/ to buy a fully functioning site.
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