diff --git a/src/core/operations/ExtractDomains.mjs b/src/core/operations/ExtractDomains.mjs
deleted file mode 100644
index cc65ff4b..00000000
--- a/src/core/operations/ExtractDomains.mjs
+++ /dev/null
@@ -1,47 +0,0 @@
-/**
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2016
- * @license Apache-2.0
- */
-
-import Operation from "../Operation.mjs";
-import { search, DOMAIN_REGEX } from "../lib/Extract.mjs";
-
-/**
- * Extract domains operation
- */
-class ExtractDomains extends Operation {
-
-    /**
-     * ExtractDomains constructor
-     */
-    constructor() {
-        super();
-
-        this.name = "Extract domains";
-        this.module = "Regex";
-        this.description = "Extracts fully qualified domain names.<br>Note that this will not include paths. Use <strong>Extract URLs</strong> to find entire URLs.";
-        this.inputType = "string";
-        this.outputType = "string";
-        this.args = [
-            {
-                "name": "Display total",
-                "type": "boolean",
-                "value": "Extract.DISPLAY_TOTAL"
-            }
-        ];
-    }
-
-    /**
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    run(input, args) {
-        const displayTotal = args[0];
-        return search(input, DOMAIN_REGEX, null, displayTotal);
-    }
-
-}
-
-export default ExtractDomains;