cf-self-egress-probe-r03-20260818
/probe?host=www.gstatic.com&port=443&mode=tls&http=1
/probe?host=104.16.132.229&port=443&mode=raw&http=0
/probe?host=104.16.132.229&port=443&mode=starttls&sni=cloudflare.com&expectedSni=1&http=1