No matter what url I try to visit at https://segment.com I get an ssl encryption error. I'm on android 5.0.1 in chrome
It might be an issue with the certificate chain not installed in the correct order on their servers. I've had this issue in the past. Mobile browsers sometimes do not "fill in the gaps" for missing/out of order certificates, but desktop browsers are much better at that. Not sure why.
Just checked it here:
https://www.digicert.com/help/
and chain appears to be correct.