So you have configured OCSP stapling and you want know if it’s actually working, it’s easy enough to check using the openssl  s_client command: openssl s_client -connect login.live.com:443 -tls1  -tlsextdebug  -status Loading ‘screen’ into random state – done CONNECTED(0000017C) TLS server extension “status request” (id=5), len=0 …. OCSP response: ====================================== OCSP Response Data: OCSP Response Status: successful (0x0) … Continue reading Testing OCSP Stapling