Adding -site:baddomain.com still seems to work in both Google and DuckDuckGo. You should be able to include that in the URL template used for search so it gets

Adding -site:baddomain.com still seems to work in both Google and DuckDuckGo. You should be able to include that in the URL template used for search so it gets added to all queries. You can build your blacklist that way. E.g. https://duckduckgo.com/?t=hk&iar=images&q=-site:pinterest.com+-site:flickr.com+%s As an aside, I haven't used Google in a while, and I find it interesting how the first page shows only like 5 results and at the very end. The rest of the page is widgets like "top stories" and "people also ask".