diff --git a/start.sh b/start.sh
index bc465fe..4c40167 100644
--- a/start.sh
+++ b/start.sh
@@ -44,19 +44,19 @@ for country in $COUNTRIES; do #https://www.ipdeny.com/ipblocks/data/countries/${
     tmp_file="${ZONE_DIR}/${country}.zone.tmp"
     target_file="${ZONE_DIR}/${country}.zone"
 
-    if curl -sSf -o "$tmp_file" "$url"; then
-        if [ -f "$target_file" ] && cmp -s "$tmp_file" "$target_file"; then
-            echo "[$country] Arquivo inalterado."
-            rm "$tmp_file"
-        else
-            echo "[$country] Atualizando IPs."
-            mv "$tmp_file" "$target_file"
-        fi
-    else
-        echo "[$country] Falha no download. Mantendo antigo (se existir)."
-        [ -f "$tmp_file" ] && rm "$tmp_file"
+if curl -sSf -o "$tmp_file" "$url"; then
+    grep -Eo '^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+(/[0-9]+)?$' "$tmp_file" > "$target_file"
+    rm "$tmp_file"
+    if [ ! -s "$target_file" ]; then
+        echo "[$country] Lista filtrada vazia, ignorando atualização."
+        rm "$target_file"
         continue
     fi
+else
+    echo "[$country] Falha no download. Mantendo antigo (se existir)."
+    [ -f "$tmp_file" ] && rm "$tmp_file"
+    continue
+fi
 
     if ipset list "$country" &>/dev/null; then
         echo "[$country] Limpando ipset antigo..."