When I go to the main stackexchange.com site, and login, then logout, after I try to login again, I am automatically logged in, without having to enter any account details.


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Then I press login:

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Note, that I didn't fill out anything, it just logged me in. When I logout explicitly on the site, I get logged out, but I can still just click the login page and get logged in automatically, without needing to enter my details.


  • I am using an own OpenID URL that delegates to SE's OpenID provider
  • Browser: Chrome
  • After logout local storage and session storage are empty. The following cookies are present: d, mc, __cfduid, __qca, __utma, __utmb, __utmc, __utmz, ASP.NET_SessionId, gauthed.

EDIT: If you closed this question, because it is a duplicate, please note that at the duplicate question the poster actually clicked on the SE provider to arrive at the auto-login page. In my case I did not have to click on any of the provider buttons, which means simply arriving at the login page will do an auto-login, essentally preventing logging in as any other user (which, if it is by design, is probably wrong)

  • This is by design. Clear your cookies or use InPrivate/Incognito mode.
    – Cole Tobin
    Commented Dec 14, 2013 at 18:15
  • If you're logged in to any other site on that computer, it will also do this.
    – hichris123
    Commented Dec 14, 2013 at 18:16
  • @MartijnPieters Didn't see that question, thanks!
    – SztupY
    Commented Dec 14, 2013 at 18:27
  • Going through that link it seems, there they click the SE button on the login page to get autologin. I haven't pressed any of the buttons, I just went to that page, and got logged in instantly.
    – SztupY
    Commented Dec 14, 2013 at 18:33

1 Answer 1


This seems to have been fixed now

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