This is partially true. I read that ddg does get a lot of its content from bing and other providers, but also indexes some content on its own. Ixquick is its ow

This is partially true. I read that ddg does get a lot of its content from bing and other providers, but also indexes some content on its own. Ixquick is its own search engine but ixquick's "startpage" is essentially a google proxy (this is probably what you meant) but also includes their own content in search results.