diff --git a/searx/network/raise_for_httperror.py b/searx/network/raise_for_httperror.py
index bd12df9a9d94270e9e14c54cc572ee19e6644431..ef60d405c074a0b51e0525f836f47b9b8a519915 100644
--- a/searx/network/raise_for_httperror.py
+++ b/searx/network/raise_for_httperror.py
@@ -2,7 +2,7 @@
 """
 Raise exception for an HTTP response is an error.
 """
-from searx.exceptions import (SearxEngineCaptchaException, SearxEngineTooManyRequestsException,
+from searx.exceptions import (SearxEngineAPIException, SearxEngineCaptchaException, SearxEngineTooManyRequestsException,
                               SearxEngineAccessDeniedException)
 
 
@@ -63,4 +63,7 @@ def raise_for_httperror(resp):
                                                    suspended_time=3600 * 24)
         if resp.status_code == 429:
             raise SearxEngineTooManyRequestsException()
+        if resp.status_code == 404:
+            message = f'(404) Resource not found for "{resp.url.host}". Are you sure the API endpoint is valid?'
+            raise SearxEngineAPIException(message)
         resp.raise_for_status()
diff --git a/searx/search/processors/online.py b/searx/search/processors/online.py
index 66719ea9b7bfe37698a2b67d4b7d73f14987e08a..f52084d45fa9719bae6f515365083f88e525217d 100644
--- a/searx/search/processors/online.py
+++ b/searx/search/processors/online.py
@@ -15,6 +15,7 @@ from searx.exceptions import (SearxEngineAccessDeniedException, SearxEngineCaptc
 from searx.metrology.error_recorder import record_exception, record_error
 
 from searx.search.processors.abstract import EngineProcessor
+from urllib.parse import urlparse
 
 
 logger = logger.getChild('search.processor.online')
@@ -175,9 +176,13 @@ class OnlineProcessor(EngineProcessor):
             elif (issubclass(e.__class__, (httpx.HTTPError, httpx.StreamError))):
                 result_container.add_unresponsive_engine(self.engine_name, 'HTTP error')
                 # other requests exception
+                response_url = urlparse(str(e.response.url))
+                status_code = e.response.status_code
+                hostname = response_url.hostname
                 logger.exception("engine {0} : requests exception"
-                                 "(search duration : {1} s, timeout: {2} s) : {3}"
-                                 .format(self.engine_name, engine_time, timeout_limit, e))
+                                 "(search duration : {1} s, timeout: {2} s) : "
+                                 "Status code {3} while requesting {4}"
+                                 .format(self.engine_name, engine_time, timeout_limit, status_code, hostname))
                 http_exception = True
             elif (issubclass(e.__class__, SearxEngineCaptchaException)):
                 result_container.add_unresponsive_engine(self.engine_name, 'CAPTCHA required')