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Today me and some other users have observed that the reputation ranking page doesn't allow to navigate past page 999.

For example, https://meta.stackexchange.com/users?page=1111&tab=reputation&filter=week shows a page:

We're sorry... There are an unusual number of requests coming from this IP address.

To protect our users, we can't process any more requests from this IP address right now.

We'll restore access as quickly as possible, so try again soon.

If you believe you have reached this page in error, contact us.

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  • 4
    Able to reproduce.
    – Luuklag
    Jan 11, 2022 at 21:33
  • What is the time scale? 10 minutes? 1 hour? 6 hours? Did it only start about 20 minutes ago?
    – This_is_NOT_a_forum
    Jan 11, 2022 at 21:36
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    Seems to apply here in southern UK too... probably not IP related.
    – W.O.
    Jan 11, 2022 at 21:48
  • same here, page=999 works, while page=1000 shows mentioned error, also on SO: stackoverflow.com/… like @Marijn pointed out
    – Vickel
    Jan 11, 2022 at 21:49
  • Also reproducible on other sites (I tried TeX.SE).
    – Marijn
    Jan 11, 2022 at 21:49
  • @P.Mort.-forgotClayShirky_q 6 hours
    – Dharman
    Jan 11, 2022 at 22:01
  • Also on Workplace. It's easy to reproduce.
    – thursdaysgeek
    Jan 11, 2022 at 23:11
  • Now solved, can't reproduce.
    – NotStanding with GoGotaHome
    Jan 30, 2022 at 4:08

1 Answer 1

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Your observation is correct. For the past two weeks, we've been hit by an evolving DDoS attack. We noticed the attack before it started affecting the site's performance, and limiting access to user pages beyond the 999th page is one of the mitigation methods we have temporarily put in place. We felt this was the best way to attenuate the attack for now, while we work to create more sophisticated ways to limit DDoS traffic.

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