diff --git a/src/config.py b/src/config.py
index dabee50..6424e98 100644
--- a/src/config.py
+++ b/src/config.py
@@ -27,6 +27,16 @@ class Settings(BaseSettings):
     searxng_url: str = Field(
         "http://searxng-svc.researchowl.svc.cluster.local:8080/search",
     )
+    # Motores que el scraper pide a SearXNG (todos vienen configurados por los
+    # defaults de la instancia, use_default_settings: true). Verificados en vivo
+    # 2026-07-03: la lista ampliada duplica resultados y dominios únicos (~2x)
+    # por ~+2s/query, y da redundancia cuando brave/DDG caen en rate limit o
+    # CAPTCHA. Excluidos: qwant (access denied), yahoo (roto), wikidata (0
+    # resultados en queries de texto), wayback machine (duplica contenido vivo).
+    searxng_engines: str = Field(
+        "duckduckgo,google,bing,brave,startpage,mojeek,presearch,"
+        "google news,bing news,internet archive scholar"
+    )
     request_timeout: int = Field(30)
     request_delay: float = Field(1.0)          # seconds between requests
     min_content_length: int = Field(200)  # chars
diff --git a/src/scraper/exhaustive.py b/src/scraper/exhaustive.py
index 3cc186b..2bbc06c 100644
--- a/src/scraper/exhaustive.py
+++ b/src/scraper/exhaustive.py
@@ -229,7 +229,7 @@ class ExhaustiveScraper:
         params = {
             "q": query,
             "format": "json",
-            "engines": "duckduckgo,google,bing,brave",
+            "engines": settings.searxng_engines,
             "language": "all",
         }
         headers = {