Permanently exclude / blacklist site from search results on DuckDuckGo

Question

Using DuckDuckGo, it's possible to temporarily remove a specific site from search results by adding -site:example.com to the search query.

Is there a way to permanently block/blacklist/exclude undesired websites from search results? I didn't find anything in the DDG settings but maybe there is some Greasemonkey script or Firefox extension out there that could do the trick?

Answer 1

ublacklist is an extension which lets you remove sites from search results.

Note that by default it works with Google, but you can enable DuckDuckGo and other search engines in the options.

Answer 2

With a standard URL rewrite/redirect pattern, you could use a Greasemonkey/Tampermonkey/generic userscript like:

// ==UserScript==
// @name        DuckDuckGo, Always add certain search parameters
// @match       *://*.duckduckgo.com/*
// @run-at      document-start
// @noframes
// @grant       none
// ==/UserScript==

//--- SET THIS NEXT VARIABLE TO TASTE.
//--- Seperate multiple site with the | key. i.e. -site:wikipedia.org|bbc.co.uk
var stickySrchTerm  = "-site:wikipedia.org";

var stckySrchEncdd  = encodeURIComponent (stickySrchTerm);
var oldUrlSearch    = location.search;

//--- Test that haven't already redirected.
if ( ! oldUrlSearch.includes (stckySrchEncdd) ) {
    //--- Our term must go in the `q=` portion of `location.search`.
    var srchParams  = oldUrlSearch.split ("&");
    for (var J = 0, L = srchParams.length;  J < L;  J++) {
        if (/^\??q=/.test (srchParams[J]) ) {
            srchParams[J] += "+" + stckySrchEncdd;
            break;
        }
    }
    var newUrlSearch    = srchParams.join ("&");
    var newURL          = location.protocol + "//"
                        + location.host
                        + location.pathname
                        + newUrlSearch
                        + location.hash
                        ;
    /*-- replace() puts the good page in the history instead of the
        bad page.
    */
    location.replace (newURL);
}