I went to stackexchange.com and clicked on SO. After a few minutes I got a message saying "We have detected too many requests from this IP. If this is an error contact us." That was the second SE page I tried to visit. Second only to SE.com

I moved to another machine and it's working now. The first machine usually works, I don't know if a got assigned a blacklisted IP or what. Anyone know what's going on?

EDIT: I would really rather not post my IP on the web, but if a diamond or dev asks I'll email it.

EDIT 2: I looked at badp's dupe suggestion and can verify that I have no scripts frequently calling SO.

  • 2
    Do you know the IP of the first machine?
    – waiwai933
    Commented Jan 21, 2011 at 1:52
  • @waiwai933: They are on the same LAN. Do you mean the external IP?
    – John
    Commented Jan 21, 2011 at 1:54
  • Are your machines all sitting behind a NAT'd LAN with a single WAN IP address?
    – Kev
    Commented Jan 21, 2011 at 2:44
  • @Kev: I believe that to be correct. So I don't know how they could block my IP and it only affect one machine... Just checked again, the first machine works now.
    – John
    Commented Jan 21, 2011 at 2:50
  • possible duplicate of Too many requests from my IP address?
    – badp
    Commented Jan 21, 2011 at 8:48
  • @badp not really, this one here is better asked and have official answer, closed the other one as dupe of this one. Commented Dec 4, 2014 at 15:20
  • @ShadowWizard points at the timestamp
    – badp
    Commented Dec 4, 2014 at 16:17
  • @badp meta.stackexchange.com/questions/147643/… Commented Dec 4, 2014 at 16:22
  • @ShadowWizard points at the timestamp of the comment you were originally replying to
    – badp
    Commented Dec 4, 2014 at 17:24
  • @badp lol, but never too late to find dupes and make the place bit more organized. :) Commented Dec 4, 2014 at 18:45

1 Answer 1


There is a temporary automatic ban that is put up by our HAProxy instance when you hit our rate limiter. It should only last about 5 mins. If you'd like us to take a look we'll need the public IP at the time you can email to george AT stackoverflow DOT com

  • 7
    Hi, how high is this rate limiter? Please. Commented May 31, 2012 at 12:58
  • 1
    @AnthonyMaia you really expect them to make it public?? Commented Dec 4, 2014 at 15:18
  • 6
    @ShadowWizard Ins't it like wondering why a speed limit is public on signs? Commented Aug 25, 2016 at 12:53

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