hi khav,

try adding the following lines to your nginx website configuration file:

ssl_stapling on;
ssl_stapling_verify on;
ssl_trusted_certificate /etc/nginx/my_ssl_certs/ca-bundle.pem;
#
# note the PEM encoded X509 ca-bundle file should contain the ssl certificate
# chain bundle (i.e. domain and intermediate CA certs)
#
resolver 8.8.8.8 8.8.4.4 valid=300s;
resolver_timeout 5s;

wbr,

ionsec