private IEnumerable <string> GetAllContentUrls()
        {
            var urls  = new List <string>();
            var roots = _umbracoHelperWrapper.TypedContentAtRoot();

            foreach (var root in roots)
            {
                var allContent = root.DescendantsOrSelf();
                urls.AddRange(allContent.Select(content => content.Url));
            }

            return(urls);
        }