Cloudflare attempts to provide compatability for as wide a range of user agents (browsers, API clients, etc.) as possible. The specific set of supported browsers differs by SSL product, however. See below for specific details.
|Clients using ECDSA key exchange||✅||✅||✅||✅|
|Clients using RSA key exchange||❌||✅||✅||✅|
|Clients without SNI 1||❌||✅||✅||✅|
Universal SSL certificates issued for Free plan zones require user agents that i) send Server Name Indication (SNI) and ii) support the Elliptic Curve Digital Signature Algorithm (ECDSA). SNI and ECDSA certificates work with the following modern browsers:
Desktop Browsers installed on Windows Vista or OS X 10.6 or later:
Mobile Safari for iOS 4.0:
Paid plans provide additional compatibility with older browsers/operating systems, such as Windows XP and Android 3.0 and earlier.
|Feature/Product||Custom (Legacy IP)||Custom Certificates||Dedicated Certificates||SSL for SaaS|
|Clients using ECDSA key exchange 1||✅||✅||✅||✅|
|Clients using RSA key exchange 1||✅||✅||✅||✅|
|Clients without SNI 1||✅||❌||❌||❌|