Comparison of OpenID providers
This comparison is out of the
Relying party's (RP's) perspective
Tested providers
Grade
|
Company / Identity URL
|
Comment
|
One user ⇔ one ID *
|
Checked
|
★★★★
|
http://stackexchange.com
|
OpenID is not their main service. Really simple signup process.
|
Yes
|
2015-Jan
|
★★★
|
http://pip.verisignlabs.com
|
The only pretty much "pure" authentication/security company. (the other ones have something else as their main service) It has a relatively simple signup process, and works great.
|
No
|
2015-Jan
|
★
|
username.wordpress.com
|
Signing up implies a lot of other stuff. If you're not already logged in when you try to use your OpenID, then you must visit the site separately and log in first. Doesn't work with Node.js's openid module
|
Yes
|
2015-Jan
|
★
|
username.livejournal.com
|
OpenIDs are not their main service, but they have a very simple signup process. Doesn't work with Node.js's openid module.
|
Yes
|
2015-Jan
|
★
|
http://openid.yahoo.com
|
|
Yes
|
2015-Sep
|
★
|
https://www.flickr.com
|
|
Yes
|
2015-Sep
|
Untested providers:
From this
list I found some other providers which I haven't tested yet:
*Does the
IdP try to maintain uniqueness.
Providers that have closed down:
- myVidoop.com
- Google.com (only OAuth)
- Facebook.com (only OAuth)
- myopenid.com
- myid.net
- technorati.com
See also: