diff --git a/ipf b/ipf
index b293b8c..5d70e84 100755
--- a/ipf
+++ b/ipf
@@ -85,7 +85,8 @@ init_nft() {
 
 test_connection() {
     local host=$1; local port=$2; local info=""
-    # Protocol Banner Check
+
+    # A. Protocol Banner Check (SSH, FTP, etc.)
     local banner=$(timeout 0.5s nc -w 1 "$host" "$port" 2>/dev/null | head -n 1 | tr -d '\000-\031')
     if [[ -n "$banner" ]]; then
         case "$banner" in
@@ -97,21 +98,51 @@ test_connection() {
         esac
         echo -e "\e[32mUP\e[0m${info}"; return 0
     fi
-    # HTTP/HTTPS Check
+
+    # B. HTTP/HTTPS & Ollama Check
     if nc -z -w 1 "$host" "$port" >/dev/null 2>&1; then
-        local schemas=("http" "https"); [[ "$port" == "443" ]] && schemas=("https" "http")
+        local schemas=("http" "https")
+        [[ "$port" == "443" ]] && schemas=("https" "http")
+
         for sch in "${schemas[@]}"; do
-            local res=$(curl -IsLk -m 2 -A "Mozilla/5.0 ipf-tester" -o /dev/null -w "%{http_code}" "${sch}://${host}:${port}/" 2>/dev/null)
-            [[ "$res" == "000" ]] && res=$(curl -sLk -m 2 -A "Mozilla/5.0 ipf-tester" -o /dev/null -w "%{http_code}" "${sch}://${host}:${port}/" 2>/dev/null)
-            if [[ "$res" == "400" ]]; then info=" (HTTPS? 400 Bad Request)"; break
-            elif [[ "$res" =~ ^[0-9]+$ && "$res" -ne 000 ]]; then info=" (${sch^^} $res)"; break; fi
+            # Ollama Check (Port 11434 or general HTTP)
+            local url="${sch}://${host}:${port}"
+            local res=$(curl -sLk -m 3 -A "Mozilla/5.0 ipf-tester" "${url}/api/tags" 2>/dev/null)
+
+            # Ollama API 判定 (JSONに "models" が含まれているか)
+            if [[ "$res" == *"models"* ]]; then
+                info=" (Ollama API)"
+                echo -e "\e[32mUP\e[0m${info}"
+
+                # "__" を含むモデル名の抽出
+                local hidden_models=$(echo "$res" | grep -oP '"name":"[^"]*__[^"]*"' | cut -d'"' -f4)
+                if [[ -n "$hidden_models" ]]; then
+                    echo -e "   \e[35m[!] Hidden Models Found:\e[0m"
+                    while read -r m; do
+                        echo -e "       - $m"
+                    done <<< "$hidden_models"
+                fi
+                return 0
+            fi
+
+            # 通常のHTTP/HTTPSステータス判定
+            local code=$(curl -IsLk -m 2 -o /dev/null -w "%{http_code}" "${url}/" 2>/dev/null)
+            [[ "$code" == "000" ]] && code=$(curl -sLk -m 2 -o /dev/null -w "%{http_code}" "${url}/" 2>/dev/null)
+
+            if [[ "$code" == "400" ]]; then
+                info=" (HTTPS? 400 Bad Request)"; break
+            elif [[ "$code" =~ ^[0-9]+$ && "$code" -ne 000 ]]; then
+                info=" (${sch^^} $code)"; break
+            fi
         done
-        echo -e "\e[32mUP\e[0m${info}"; return 0
+        echo -e "\e[32mUP\e[0m${info}"
+        return 0
     else
         echo -e "\e[31mDOWN\e[0m"; return 1
     fi
 }
 
+
 show_help() {
     if [[ "$SYSTEM_LANG" == "ja" ]]; then
         cat << EOF