[fix] fix duckduckgo's offset

First page now starts with 0 offset,
rather than starting on the 30th result.

DuckDuckGo returns 30 results on each page.

1 files changed, 3 insertions, 4 deletions

diff --git a/searx/engines/duckduckgo.py b/searx/engines/duckduckgo.py
index 1c0587451..8b6411ca2 100644
--- a/searx/engines/duckduckgo.py
+++ b/searx/engines/duckduckgo.py
@@ -79,16 +79,15 @@ def request(query, params):
     if params['time_range'] and params['time_range'] not in time_range_dict:
         return params
 
-    offset = 30 + (params['pageno'] - 1) * 50
-    dc_param = offset + 1
+    offset = (params['pageno'] - 1) * 30
 
     region_code = get_region_code(params['language'])
     if region_code:
         params['url'] = url.format(
-            query=urlencode({'q': query, 'kl': region_code}), offset=offset, dc_param=dc_param)
+            query=urlencode({'q': query, 'kl': region_code}), offset=offset, dc_param=offset)
     else:
         params['url'] = url.format(
-            query=urlencode({'q': query}), offset=offset, dc_param=dc_param)
+            query=urlencode({'q': query}), offset=offset, dc_param=offset)
 
     if params['time_range'] in time_range_dict:
         params['url'] += time_range_url.format(range=time_range_dict[params['time_range']])