Test your SSL certificate before deploying into Apache

Put key, cert and CA in a directory. Confirm the below outputs no errors and ends in ‘ACCEPT’:

site=sample.com
cacert=GeoTrust_CA_Bundle.crt
openssl s_server -accept 9090 -www \
  -cert ${site}.crt -key ${site}.key \
  -CAfile $cacert

Change User Agent in Chrome 53

]Right click | Inspect | Vertical three dots menu | More Tools | Network Conditions:
Thanks to Williams Medina for pointing this out.