ATS and certificate quality

I've done some certificate testing to determine what is required to satisfy iOS 9's ATS.


✖ Self-Signed

✅ Domain Validation

✅ Organization Validation

✅ Extended Validation


If simple Domain Validation certificates are adequate, then I will use those in many cases. However, I have not been able to find clear documentation to validate that theory. Anyone know the answer? Thanks in advance!


FYI: It looks like there will be a free service to provide certs in September, backed by some major companies:


https://letsencrypt.org