I put a program in cron to run every 5 minutes, and that program loop 5 times and read each api site 12 seconds interval.

But last night (12 hours ago), I noticed that my program broke and there was multiple instances of program running and trying to fetch data in almost every second.

Problem was I didn't set cron to run only one instance of my program, and it taking time more than 5 minutes and duplicating with next cron instances. It was about 2 Hours long!

So, Can I request to unblock my IP here or Should I just wait for automatic release or Just give up?

Note: I only have one hosting, I can't change IP address on my side.

Edit: Looks like it is not temporary, I still can't fetch any data from (api.)?stackoverflow.com, sstatic.net yet until now.

  • 4
    I believe the correct sacrifice to appease the gods is 3 lambs and a cricket. Jun 15, 2010 at 4:38
  • I believe that this is why we test on our local machine before uploading. Jun 15, 2010 at 5:02
  • @farseeker even though the day is young (for me at least), I think that's the best comment I'll see all day!
    – Matt S.
    Jun 15, 2010 at 11:09
  • @S.Mark have you resolved? Jun 17, 2010 at 6:25
  • @system, not yet. :( looks like it is semi permanent.
    – YOU
    Jun 17, 2010 at 12:23
  • @S.Mark :-|.... Jun 17, 2010 at 12:26

4 Answers 4


If it were me, I'd email [email protected]. They would be the best people to talk to to get this issue resolved.

  • yeah, dude. what he said. i would have been spamming them 5 minutes into a lock out. Jun 17, 2010 at 23:52

This is an old question, but I ran into a similar problem while developing my first app utilizing Stack Exchange API v2.2 this week. A bit of defensive programming can reduce the impact of unintentional foot-shots. Your app (or multiple copies / threads of your app) won't be getting much done, but you are less likely to get barred.

To avoid having your app permanently blocked, you should be looking for backoff in the Common Wrapper Object of every response. When told to back off, do so. The following Javascript excerpt does just that:

function queryStackExchange( queryString ) {      
  // If we have been asked to back off by Stack Exchange API, exit
  var backoffUntil = properties.getProperty("backoff");
  if (backoffUntil) {
    if (now() < backoffUntil) {
      return {"backoff":backoffUntil};
    else {
      // backoff completed; delete snooze setting

  // OK to proceed - build our query
  var json = UrlFetchApp.fetch(url);

  var obj = JSON.parse(json);

  // Check for backoff request, and set our snooze period
  if ("backoff" in obj) {
    backoffUntil = now() + 1000*parseInt(obj["backoff"]);
    properties.setProperty("backoff", backoffUntil);

  return obj;

E-mail us (use the contact link) with the IP and your case details.


Wait unit 00:00 GMT and your rate-limit will be reset.

unless you tripped some wire I am not aware of and got on a black list.

  • 1
    I think its more than rate-limit issue though, but let's see
    – YOU
    Jun 15, 2010 at 5:16

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