The DEMO version only includes 10 pages:
http://viserlab.com
http://viserlab.com/callzen/demos/index-two.html
http://viserlab.com/callzen/demos/about.html
http://viserlab.com/callzen/demos/services.html
http://viserlab.com/callzen/demos/services-details.html
http://viserlab.com/callzen/demos/work.html
http://viserlab.com/callzen/demos/pricing.html
http://viserlab.com/callzen/demos/faq.html
http://viserlab.com/callzen/demos/error.html
http://viserlab.com/callzen/demos/blog.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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