This will check the WebID watermark in your X.509 Certificate.
This service supports WebIDs based on the following URI schemes (more to come):
- * acct, e.g: acct:ExampleUser@id.example.com
- * http, e.g: http://id.example.com/person/ExampleUser#this
- * ldap, e.g: ldap://ldap.example.com/o=An%20Example%5C2C%20Inc.,c=US
- * mailto, e.g: mailto:ExampleUser@id.example.com