private void Merge(string url, IHostFile hostFile)
        {
            var cachedHosts = _blocklistCacheManager.GetReaderFor(url);

            if (cachedHosts == null)
            {
                _logger.LogWarning($"Unable to retrieve cached data for {url}");
                return;
            }

            _logger.LogDebug($"Retrieved cached data for {url}");
            hostFile.Merge(cachedHosts);
        }