I looked at Cliqz a few months ago, and the crawl didn't seem competitive with Google or Bing: https://news.ycombinator.com/item?id=21676600
1. Search for a blog I follow
2. Look at the snippet for the blog's homepage
3. Figure out how long ago the page must have been crawled to get such an old snippet
I only tried a few, but they were months to years out of date.