The tetley site most probably uses our Multisite module
in order to achieve such a result for its different language versions. The default functionality requires you specify a different domain for each site you create in your Sitefinity instance.
If you want to achieve similar functionality, but require directories instead of domains there are two approaches you can follow. The first one is to take advantage of our Multilingual functionality and add different languages to your site. Once you translate some content, when you change the site culture you will get the current culture appended to your site URL (e.g. www.mysite.com/en).
If you like to have a more friendlier URL than simply the language abbreviation, you can try and create a separate group page for each site culture. The Group pages will have separate pages as their child pages, corresponding to the culture. Provided you want to copy pages from another culture you are free to duplicate them and then move them under the group page you need. For more information on Sitefinity pages, please refer to our Documentation
Ivan D. Dimitrov
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