diff --git a/searx/plugins/query_strings.py b/searx/plugins/query_strings.py
new file mode 100644
index 000000000..af49405d5
--- /dev/null
+++ b/searx/plugins/query_strings.py
@@ -0,0 +1,23 @@
+import shlex, string
+
+name = "query strings"
+description = 'adds site:, - and "" to searx'
+default_on = True
+
+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 content for x in spitems):
+        return False
+    if all(x in title or 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