The DEMO version only includes 10 pages:
http://xero.com
http://xero.com/us/signup.html
http://xero.com/login-sub/identity/user/login.html
http://xero.com/us/pricing-plans.html
http://xero.com/us/accounting-software.html
http://xero.com/us/accounting-software/all-features.html
http://xero.com/us/about/onboarding-support.html
http://xero.com/us/accounting-software/capture-data-with-hubdoc.html
http://xero.com/us/events/xero-beautiful-business-fund.html
http://xero.com/us/small-businesses/all-business-types.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://www6.waybackmachinedownloader.com/website-downloader-online/scrape-all-files/ to buy a fully functioning site.
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