Why can I upload .html, .htm, and .shtml files via FTP?
uCoz is the system for creating dynamic sites, that’s why we have disabled uploading of files with .html, .htm and .shtml extensions via FTP. If you need to upload such file you can do it in the Control Panel in “File Manager” section. If you have your whole site consisting of such files, then it is time to proceed to the next level of site creation, i.e. creation of dynamic sites. For this purpose examine the module “Page Editor”. Here you can create unlimited number of pages and fill them with any information, at the same time the design of your site will be within 1 template only, which helps to quickly change the design. Content of dynamic pages is in the database, thus it is not bound to the design. You can manage page content both through the Control Panel and the site.