To test your browser in determining if your PC client is vulnerable:

https://www.poodletest.com

For corporate users to test server vulnerabilities

https://ssltest.com

Excellent documentation on how to disable SSL3 on servers and clients:

https://isc.sans.edu/diary/POODLE%3A+Turning+off+SSLv3+for+various+servers+and+client.++/18837

To turn off SSLv3 support in Internet Explorer 11:

Setting -> Internet Options -> Advanced Tab -> Uncheck “SSL version 3.0” under “Security”.