diff --git a/searx/botdetection/_helpers.py b/searx/botdetection/_helpers.py
index b15f720f6..0f6bafb17 100644
--- a/searx/botdetection/_helpers.py
+++ b/searx/botdetection/_helpers.py
@@ -8,6 +8,7 @@ from ipaddress import (
     IPv4Address,
     IPv6Address,
     ip_network,
+    ip_address,
 )
 import flask
 import werkzeug
@@ -125,6 +126,9 @@ def get_real_ip(request: SXNG_Request) -> str:
     if real_ip and remote_addr and real_ip != remote_addr:
         logger.warning("IP from WSGI environment (%s) is not equal to IP from X-Real-IP (%s)", remote_addr, real_ip)
 
-    request_ip = forwarded_for or real_ip or remote_addr or '0.0.0.0'
+    request_ip = ip_address(forwarded_for or real_ip or remote_addr or '0.0.0.0')
+    if request_ip.version == 6 and request_ip.ipv4_mapped:
+        request_ip = request_ip.ipv4_mapped
+
     # logger.debug("get_real_ip() -> %s", request_ip)
-    return request_ip
+    return str(request_ip)
diff --git a/searx/plugins/tor_check.py b/searx/plugins/tor_check.py
index 95281eb42..e719207bf 100644
--- a/searx/plugins/tor_check.py
+++ b/searx/plugins/tor_check.py
@@ -21,7 +21,8 @@ from flask_babel import gettext
 from httpx import HTTPError
 
 from searx.network import get
-from searx.result_types import Answer
+from searx.result_types import EngineResults
+from searx.botdetection import get_real_ip
 
 
 default_on = False
@@ -51,8 +52,8 @@ url_exit_list = "https://check.torproject.org/exit-addresses"
 """URL to load Tor exit list from."""
 
 
-def post_search(request, search) -> list[Answer]:
-    results = []
+def post_search(request, search) -> EngineResults:
+    results = EngineResults()
 
     if search.search_query.pageno > 1:
         return results
@@ -67,22 +68,17 @@ def post_search(request, search) -> list[Answer]:
         except HTTPError:
             # No answer, return error
             msg = gettext("Could not download the list of Tor exit-nodes from")
-            Answer(results=results, answer=f"{msg} {url_exit_list}")
+            results.add(results.types.Answer(answer=f"{msg} {url_exit_list}"))
             return results
 
-        x_forwarded_for = request.headers.getlist("X-Forwarded-For")
+        real_ip = get_real_ip(request)
 
-        if x_forwarded_for:
-            ip_address = x_forwarded_for[0]
-        else:
-            ip_address = request.remote_addr
-
-        if ip_address in node_list:
+        if real_ip in node_list:
             msg = gettext("You are using Tor and it looks like you have the external IP address")
-            Answer(results=results, answer=f"{msg} {ip_address}")
+            results.add(results.types.Answer(answer=f"{msg} {real_ip}"))
 
         else:
             msg = gettext("You are not using Tor and you have the external IP address")
-            Answer(results=results, answer=f"{msg} {ip_address}")
+            results.add(results.types.Answer(answer=f"{msg} {real_ip}"))
 
     return results
diff --git a/searx/plugins/unit_converter.py b/searx/plugins/unit_converter.py
index cdd8287fe..3b9f98945 100644
--- a/searx/plugins/unit_converter.py
+++ b/searx/plugins/unit_converter.py
@@ -25,7 +25,7 @@ import babel.numbers
 from flask_babel import gettext, get_locale
 
 from searx import data
-from searx.result_types import Answer
+from searx.result_types import EngineResults
 
 
 name = "Unit converter plugin"
@@ -245,8 +245,8 @@ def _parse_text_and_convert(from_query, to_query) -> str | None:
     return f'{result} {target_symbol}'
 
 
-def post_search(_request, search) -> list[Answer]:
-    results = []
+def post_search(_request, search) -> EngineResults:
+    results = EngineResults()
 
     # only convert between units on the first page
     if search.search_query.pageno > 1:
@@ -264,6 +264,6 @@ def post_search(_request, search) -> list[Answer]:
                 from_query, to_query = query.split(keyword, 1)
                 target_val = _parse_text_and_convert(from_query.strip(), to_query.strip())
                 if target_val:
-                    Answer(results=results, answer=target_val)
+                    results.add(results.types.Answer(answer=target_val))
 
     return results