@echo off
set "primary_url=http://test5.cresign.ne2t"
set "fallback_url=http://naver.com"

:check
echo %time% - %primary_url% 접속 시도 중...
powershell -Command "try { $response = Invoke-WebRequest -Uri '%primary_url%' -TimeoutSec 10; if ($response.StatusCode -eq 200) { Write-Output 'Success'; exit 0 } } catch { Write-Output 'Error'; exit 1 }"
if %ERRORLEVEL% neq 0 (
    echo %primary_url% 접속 실패! %fallback_url% 열기.
    start %fallback_url%
) else (
    echo %primary_url% 접속 성공!
)
timeout /t 120 >nul
goto check