diff --git a/searx/plugins/__init__.py b/searx/plugins/__init__.py
index 65174c21..60cf3e8a 100644
--- a/searx/plugins/__init__.py
+++ b/searx/plugins/__init__.py
@@ -34,6 +34,7 @@ from searx.plugins import (oa_doi_rewrite,
                            self_info,
                            hostname_replace,
                            search_on_category_select,
+                           search_operators,
                            tracker_url_remover,
                            vim_hotkeys)
 
@@ -171,8 +172,10 @@ plugins.register(infinite_scroll)
 plugins.register(self_info)
 plugins.register(hostname_replace)
 plugins.register(search_on_category_select)
+plugins.register(search_operators)
 plugins.register(tracker_url_remover)
 plugins.register(vim_hotkeys)
+
 # load external plugins
 if 'plugins' in settings:
     plugins.register(*settings['plugins'], external=True)
diff --git a/searx/plugins/search_operators.py b/searx/plugins/search_operators.py
new file mode 100644
index 00000000..59125daf
--- /dev/null
+++ b/searx/plugins/search_operators.py
@@ -0,0 +1,32 @@
+import shlex
+import string
+
+from flask_babel import gettext
+
+name = gettext("Search operators")
+description = gettext("""Filter results using hyphen, site: and -site:.
+Please note that you might get less results with the additional filtering.""")
+default_on = False
+
+
+def on_result(request, search, result):
+    q = search.search_query.query
+    qs = shlex.split(q)
+    spitems = [x.lower() for x in qs if ' ' in x]
+    mitems = [x.lower() for x in qs if x.startswith('-')]
+    siteitems = [x.lower() for x in qs if x.startswith('site:')]
+    msiteitems = [x.lower() for x in qs if x.startswith('-site:')]
+    url, title, content = (
+        result["url"].lower(),
+        result["title"].lower(),
+        (result.get("content").lower() if result.get("content") else '')
+    )
+    if all((x not in title or x not in content) for x in spitems):
+        return False
+    if all((x in title or x in content) for x in mitems):
+        return False
+    if all(x not in url for x in siteitems):
+        return False
+    if all(x in url for x in msiteitems):
+        return False
+    return True