Validatrr RSS Feed page returns Error 503

Since yesterday 27 October 2023, 

By connecting the W3 validator for the RSS Feed [ https://validator.w3.org/feed/check.cgi?url=URLS_I_HAVE_TO_TEST | https://validator.w3.org/feed/check.cgi?url=URLS_I_HAVE_TO_TEST ] it returns me error 503 service unavailable 

mvg, 

BART R. 

Received on Tuesday, 31 October 2023 09:33:06 UTC